Bdp - did you see my previous post ?

Re: Room B - Quad 57 - Music Reference RM10 + Sub.

The arrows in the picture point to all the spots where sub/s have gone in the past.
I was hoping for some fun & guesses on which spot you guys thought worked best.
Well its location 12. Nearfield. Spot 11 works ok too. But above on the main floor close to spot 11 is my wife's couch for watching TV.
This is not good. Trust me on this one.

Bdp24 Did you email GR Research, or Rythmik?
I emailed Rhythmik with my requirements including the same picture with the arrows.
It lead to some back and forth dialogue.


**********************************************

Chris,

We have a lot of customers with Quad 57’s and Magnepan speakers as well. Our sealed subwoofer are good match for planar speakers in general. Depending on the size of your room, a pair of F12 or pair of F15HPs would do the job. If your room is less than 3500 cu ft than a pair of F12s would be OK. If your room is bigger then a pair of E15HPs or F15HPs will be the way to go.

Best Regards,
Rythmik Audio - Tech Support --------------------------------------------------

"ME"
thanks for your reply.

"Depending on the size of your room, a pair of F12 or pair of F15HPs would do the job."

22 ft wide - 18 deep but a room behind where I am standing is another 13 x 24 if door left open. 8 ft ceilings.
In using one large sub as an experiment the red arrow represents the best placement with 57's.
How would your subs factor in. Based on your experience which arrows would represent good placement ?
Is this enough info to give me an opinion.

Date: Mon, 2 Nov 2015 10:46:29 -0600
Subject: Re: Quad 57 - wayne picquet rebuilds

Chris,

In a room that size you have to go with a pair of F15HPs. About the placement, it’s really hard to say what’s the best place to put the subwoofers because every room is different. You have to try different locations, take measurement or do a subwoofer crawl until you find the best location for the subwoofer(s). Usually front wall close to a corner helps with extension and output but it’s not the rule all the time or for every room.

Rythmik Audio – Tech Support

ME -

for a two channel only Audio room, have you ever used a near field placement beside / behind the listening couch ? Chris

Chris,

I have my pair of F12SEs near field, one on each side of my couch. Of course, my room is only 2700 cu ft.

Best Regards,

Rythmik Audio - Tech Support
ME

interesting thanks.

Would you agree then for two channel - if you want the best bass at the listening couch that the best placement is nearfield?
This allows for the lowest volume setting on the sub. The sub is never stressed.
Chris


Chris,

Like I said before placement is different for every room. In my room near field is better and also I don’t have many placement options. You have to try different locations until you find the most appropriated for your room. But usually near field placement works in most rooms.

Rythmik Audio - Tech Support*****************************************************

That's how the discussion went.
fwiw - Just One F15HP that Rhythmic mentions in the email trail starts at $1200 us.(from website)


Bdp24 - The OB Sub can be used up to around 300Hz, so a stereo pair is the norm. Bdp

I have tried a conventional stereo pair of subs (borrowed) in line / close to the Quad 57's in room B.

My observations

1) The Quad 57 bass is too fast for them.
2) Inline or close to the Quads also forces you to use higher setting on the subs, which ends up clouding the Quad midrange.

Right now

In Room B - Quad 57's with the Music Reference RM10 and that one conventional sub in nearfield at position 12.
The previous compression of sound that I talked about on this thread in Room B with the quads has been fixed.
I am able to achieve 100 db peaks if I want. I listen around 80-85 db plus peaks. The room is filled with sound due to the positioning of the quads.
So thinking of bringing in a pair and using both in nearfield.

Bdp24 - Rythmik lists the OB Sub kit in their product listings
I have many tools, and as a cottage owner I do a lot of DIY carpentry. My problem as confirmed by my wife. I am good at making stuff to about 90% completion. Meaning it will work and not fall down. But I am terrible at finishing touches. I usually get on with the next project on the list. I still have not put in the base mouldings for my Room B yet.

So...

Prefer a plug and play approach - finished product - and we unfortunately absolutely need to consider today the 30 point difference in our dollars :^(

ct0517 November 04, 2015 08:24

Bdp - did you see my previous post ?

Re: Room B - Quad 57 - Music Reference RM10 + Sub.

The arrows in the picture point to all the spots where sub/s have gone in the past.
I was hoping for some fun & guesses on which spot you guys thought worked best.
Well its location 12. Nearfield. Spot 11 works ok too. But above on the main floor close to spot 11 is my wife's couch for watching TV.
This is not good. Trust me on this one.

Bdp24 Did you email GR Research, or Rythmik?
I emailed Rhythmik with my requirements including the same picture with the arrows.
It lead to some back and forth dialogue.


**********************************************

Chris,

We have a lot of customers with Quad 57’s and Magnepan speakers as well. Our sealed subwoofer are good match for planar speakers in general. Depending on the size of your room, a pair of F12 or pair of F15HPs would do the job. If your room is less than 3500 cu ft than a pair of F12s would be OK. If your room is bigger then a pair of E15HPs or F15HPs will be the way to go.

Best Regards,
Rythmik Audio - Tech Support --------------------------------------------------

"ME"
thanks for your reply.

"Depending on the size of your room, a pair of F12 or pair of F15HPs would do the job."

22 ft wide - 18 deep but a room behind where I am standing is another 13 x 24 if door left open. 8 ft ceilings.
In using one large sub as an experiment the red arrow represents the best placement with 57's.
How would your subs factor in. Based on your experience which arrows would represent good placement ?
Is this enough info to give me an opinion.

Date: Mon, 2 Nov 2015 10:46:29 -0600
Subject: Re: Quad 57 - wayne picquet rebuilds

Chris,

In a room that size you have to go with a pair of F15HPs. About the placement, it’s really hard to say what’s the best place to put the subwoofers because every room is different. You have to try different locations, take measurement or do a subwoofer crawl until you find the best location for the subwoofer(s). Usually front wall close to a corner helps with extension and output but it’s not the rule all the time or for every room.

Rythmik Audio – Tech Support

ME -

for a two channel only Audio room, have you ever used a near field placement beside / behind the listening couch ? Chris

Chris,

I have my pair of F12SEs near field, one on each side of my couch. Of course, my room is only 2700 cu ft.

Best Regards,

Rythmik Audio - Tech Support
ME

interesting thanks.

Would you agree then for two channel - if you want the best bass at the listening couch that the best placement is nearfield?
This allows for the lowest volume setting on the sub. The sub is never stressed.
Chris


Chris,

Like I said before placement is different for every room. In my room near field is better and also I don’t have many placement options. You have to try different locations until you find the most appropriated for your room. But usually near field placement works in most rooms.

Rythmik Audio - Tech Support*****************************************************

That's how the discussion went.
fwiw - Just One F15HP that Rhythmic mentions in the email trail starts at $1200 us.(from website)


Bdp24 - The OB Sub can be used up to around 300Hz, so a stereo pair is the norm. Bdp

I have tried a conventional stereo pair of subs (borrowed) in line / close to the Quad 57's in room B.

My observations

1) The Quad 57 bass is too fast for them.
2) Inline or close to the Quads also forces you to use higher setting on the subs, which ends up clouding the Quad midrange.

Right now

In Room B - Quad 57's with the Music Reference RM10 and that one conventional sub in nearfield at position 12.
The previous compression of sound that I talked about on this thread in Room B with the quads has been fixed.
I am able to achieve 100 db peaks if I want. I listen around 80-85 db plus peaks. The room is filled with sound due to the positioning of the quads.
So thinking of bringing in a pair and using both in nearfield.

Bdp24 - Rythmik lists the OB Sub kit in their product listings
I have many tools, and as a cottage owner I do a lot of DIY carpentry. My problem as confirmed by my wife. I am good at making stuff to about 90% completion. Meaning it will work and not fall down. But I am terrible at finishing touches. I usually get on with the next project on the list. I still have not put in the base mouldings for my Room B yet.

So...

Prefer a plug and play approach - finished product - and we unfortunately absolutely need to consider today the 30 point difference in our dollars :^(

ct0517 November 04, 2015 08:24

Bdp - did you see my previous post ?

Re: Room B - Quad 57 - Music Reference RM10 + Sub.

The arrows in the picture point to all the spots where sub/s have gone in the past.
I was hoping for some fun & guesses on which spot you guys thought worked best.
Well its location 12. Nearfield. Spot 11 works ok too. But above on the main floor close to spot 11 is my wife's couch for watching TV.
This is not good. Trust me on this one.

Bdp24 Did you email GR Research, or Rythmik?
I emailed Rhythmik with my requirements including the same picture with the arrows.
It lead to some back and forth dialogue.


**********************************************

Chris,

We have a lot of customers with Quad 57’s and Magnepan speakers as well. Our sealed subwoofer are good match for planar speakers in general. Depending on the size of your room, a pair of F12 or pair of F15HPs would do the job. If your room is less than 3500 cu ft than a pair of F12s would be OK. If your room is bigger then a pair of E15HPs or F15HPs will be the way to go.

Best Regards,
Rythmik Audio - Tech Support --------------------------------------------------

"ME"
thanks for your reply.

"Depending on the size of your room, a pair of F12 or pair of F15HPs would do the job."

22 ft wide - 18 deep but a room behind where I am standing is another 13 x 24 if door left open. 8 ft ceilings.
In using one large sub as an experiment the red arrow represents the best placement with 57's.
How would your subs factor in. Based on your experience which arrows would represent good placement ?
Is this enough info to give me an opinion.

Date: Mon, 2 Nov 2015 10:46:29 -0600
Subject: Re: Quad 57 - wayne picquet rebuilds

Chris,

In a room that size you have to go with a pair of F15HPs. About the placement, it’s really hard to say what’s the best place to put the subwoofers because every room is different. You have to try different locations, take measurement or do a subwoofer crawl until you find the best location for the subwoofer(s). Usually front wall close to a corner helps with extension and output but it’s not the rule all the time or for every room.

Rythmik Audio – Tech Support

ME -

for a two channel only Audio room, have you ever used a near field placement beside / behind the listening couch ? Chris

Chris,

I have my pair of F12SEs near field, one on each side of my couch. Of course, my room is only 2700 cu ft.

Best Regards,

Rythmik Audio - Tech Support
ME

interesting thanks.

Would you agree then for two channel - if you want the best bass at the listening couch that the best placement is nearfield?
This allows for the lowest volume setting on the sub. The sub is never stressed.
Chris


Chris,

Like I said before placement is different for every room. In my room near field is better and also I don’t have many placement options. You have to try different locations until you find the most appropriated for your room. But usually near field placement works in most rooms.

Rythmik Audio - Tech Support*****************************************************

That's how the discussion went.
fwiw - Just One F15HP that Rhythmic mentions in the email trail starts at $1200 us.(from website)


Bdp24 - The OB Sub can be used up to around 300Hz, so a stereo pair is the norm. Bdp

I have tried a conventional stereo pair of subs (borrowed) in line / close to the Quad 57's in room B.

My observations

1) The Quad 57 bass is too fast for them.
2) Inline or close to the Quads also forces you to use higher setting on the subs, which ends up clouding the Quad midrange.

Right now

In Room B - Quad 57's with the Music Reference RM10 and that one conventional sub in nearfield at position 12.
The previous compression of sound that I talked about on this thread in Room B with the quads has been fixed.
I am able to achieve 100 db peaks if I want. I listen around 80-85 db plus peaks. The room is filled with sound due to the positioning of the quads.
So thinking of bringing in a pair and using both in nearfield.

Bdp24 - Rythmik lists the OB Sub kit in their product listings
I have many tools, and as a cottage owner I do a lot of DIY carpentry. My problem as confirmed by my wife. I am good at making stuff to about 90% completion. Meaning it will work and not fall down. But I am terrible at finishing touches. I usually get on with the next project on the list. I still have not put in the base mouldings for my Room B yet.

So...

Prefer a plug and play approach - finished product - and we unfortunately absolutely need to consider today the 30 point difference in our dollars :^(

ct0517 November 04, 2015 08:24

Bdp - did you see my previous post ?

Re: Room B - Quad 57 - Music Reference RM10 + Sub.

The arrows in the picture point to all the spots where sub/s have gone in the past.
I was hoping for some fun & guesses on which spot you guys thought worked best.
Well its location 12. Nearfield. Spot 11 works ok too. But above on the main floor close to spot 11 is my wife's couch for watching TV.
This is not good. Trust me on this one.

Bdp24 Did you email GR Research, or Rythmik?
I emailed Rhythmik with my requirements including the same picture with the arrows.
It lead to some back and forth dialogue.


**********************************************

Chris,

We have a lot of customers with Quad 57’s and Magnepan speakers as well. Our sealed subwoofer are good match for planar speakers in general. Depending on the size of your room, a pair of F12 or pair of F15HPs would do the job. If your room is less than 3500 cu ft than a pair of F12s would be OK. If your room is bigger then a pair of E15HPs or F15HPs will be the way to go.

Best Regards,
Rythmik Audio - Tech Support --------------------------------------------------

"ME"
thanks for your reply.

"Depending on the size of your room, a pair of F12 or pair of F15HPs would do the job."

22 ft wide - 18 deep but a room behind where I am standing is another 13 x 24 if door left open. 8 ft ceilings.
In using one large sub as an experiment the red arrow represents the best placement with 57's.
How would your subs factor in. Based on your experience which arrows would represent good placement ?
Is this enough info to give me an opinion.

Date: Mon, 2 Nov 2015 10:46:29 -0600
Subject: Re: Quad 57 - wayne picquet rebuilds

Chris,

In a room that size you have to go with a pair of F15HPs. About the placement, it’s really hard to say what’s the best place to put the subwoofers because every room is different. You have to try different locations, take measurement or do a subwoofer crawl until you find the best location for the subwoofer(s). Usually front wall close to a corner helps with extension and output but it’s not the rule all the time or for every room.

Rythmik Audio – Tech Support

ME -

for a two channel only Audio room, have you ever used a near field placement beside / behind the listening couch ? Chris

Chris,

I have my pair of F12SEs near field, one on each side of my couch. Of course, my room is only 2700 cu ft.

Best Regards,

Rythmik Audio - Tech Support
ME

interesting thanks.

Would you agree then for two channel - if you want the best bass at the listening couch that the best placement is nearfield?
This allows for the lowest volume setting on the sub. The sub is never stressed.
Chris


Chris,

Like I said before placement is different for every room. In my room near field is better and also I don’t have many placement options. You have to try different locations until you find the most appropriated for your room. But usually near field placement works in most rooms.

Rythmik Audio - Tech Support*****************************************************

That's how the discussion went.
fwiw - Just One F15HP that Rhythmic mentions in the email trail starts at $1200 us.(from website)


Bdp24 - The OB Sub can be used up to around 300Hz, so a stereo pair is the norm. Bdp

I have tried a conventional stereo pair of subs (borrowed) in line / close to the Quad 57's in room B.

My observations

1) The Quad 57 bass is too fast for them.
2) Inline or close to the Quads also forces you to use higher setting on the subs, which ends up clouding the Quad midrange.

Right now

In Room B - Quad 57's with the Music Reference RM10 and that one conventional sub in nearfield at position 12.
The previous compression of sound that I talked about on this thread in Room B with the quads has been fixed.
I am able to achieve 100 db peaks if I want. I listen around 80-85 db plus peaks. The room is filled with sound due to the positioning of the quads.
So thinking of bringing in a pair and using both in nearfield.

Bdp24 - Rythmik lists the OB Sub kit in their product listings
I have many tools, and as a cottage owner I do a lot of DIY carpentry. My problem as confirmed by my wife. I am good at making stuff to about 90% completion. Meaning it will work and not fall down. But I am terrible at finishing touches. I usually get on with the next project on the list. I still have not put in the base mouldings for my Room B yet.

So...

Prefer a plug and play approach - finished product - and we unfortunately absolutely need to consider today the 30 point difference in our dollars :^(

ct0517 November 04, 2015 08:24

Bdp - did you see my previous post ?

Re: Room B - Quad 57 - Music Reference RM10 + Sub.

The arrows in the picture point to all the spots where sub/s have gone in the past.
I was hoping for some fun & guesses on which spot you guys thought worked best.
Well its location 12. Nearfield. Spot 11 works ok too. But above on the main floor close to spot 11 is my wife's couch for watching TV.
This is not good. Trust me on this one.

Bdp24 Did you email GR Research, or Rythmik?
I emailed Rhythmik with my requirements including the same picture with the arrows.
It lead to some back and forth dialogue.


**********************************************

Chris,

We have a lot of customers with Quad 57’s and Magnepan speakers as well. Our sealed subwoofer are good match for planar speakers in general. Depending on the size of your room, a pair of F12 or pair of F15HPs would do the job. If your room is less than 3500 cu ft than a pair of F12s would be OK. If your room is bigger then a pair of E15HPs or F15HPs will be the way to go.

Best Regards,
Rythmik Audio - Tech Support --------------------------------------------------

"ME"
thanks for your reply.

"Depending on the size of your room, a pair of F12 or pair of F15HPs would do the job."

22 ft wide - 18 deep but a room behind where I am standing is another 13 x 24 if door left open. 8 ft ceilings.
In using one large sub as an experiment the red arrow represents the best placement with 57's.
How would your subs factor in. Based on your experience which arrows would represent good placement ?
Is this enough info to give me an opinion.

Date: Mon, 2 Nov 2015 10:46:29 -0600
Subject: Re: Quad 57 - wayne picquet rebuilds

Chris,

In a room that size you have to go with a pair of F15HPs. About the placement, it’s really hard to say what’s the best place to put the subwoofers because every room is different. You have to try different locations, take measurement or do a subwoofer crawl until you find the best location for the subwoofer(s). Usually front wall close to a corner helps with extension and output but it’s not the rule all the time or for every room.

Rythmik Audio – Tech Support

ME -

for a two channel only Audio room, have you ever used a near field placement beside / behind the listening couch ? Chris

Chris,

I have my pair of F12SEs near field, one on each side of my couch. Of course, my room is only 2700 cu ft.

Best Regards,

Rythmik Audio - Tech Support
ME

interesting thanks.

Would you agree then for two channel - if you want the best bass at the listening couch that the best placement is nearfield?
This allows for the lowest volume setting on the sub. The sub is never stressed.
Chris


Chris,

Like I said before placement is different for every room. In my room near field is better and also I don’t have many placement options. You have to try different locations until you find the most appropriated for your room. But usually near field placement works in most rooms.

Rythmik Audio - Tech Support*****************************************************

That's how the discussion went.
fwiw - Just One F15HP that Rhythmic mentions in the email trail starts at $1200 us.(from website)


Bdp24 - The OB Sub can be used up to around 300Hz, so a stereo pair is the norm. Bdp

I have tried a conventional stereo pair of subs (borrowed) in line / close to the Quad 57's in room B.

My observations

1) The Quad 57 bass is too fast for them.
2) Inline or close to the Quads also forces you to use higher setting on the subs, which ends up clouding the Quad midrange.

Right now

In Room B - Quad 57's with the Music Reference RM10 and that one conventional sub in nearfield at position 12.
The previous compression of sound that I talked about on this thread in Room B with the quads has been fixed.
I am able to achieve 100 db peaks if I want. I listen around 80-85 db plus peaks. The room is filled with sound due to the positioning of the quads.
So thinking of bringing in a pair and using both in nearfield.

Bdp24 - Rythmik lists the OB Sub kit in their product listings
I have many tools, and as a cottage owner I do a lot of DIY carpentry. My problem as confirmed by my wife. I am good at making stuff to about 90% completion. Meaning it will work and not fall down. But I am terrible at finishing touches. I usually get on with the next project on the list. I still have not put in the base mouldings for my Room B yet.

So...

Prefer a plug and play approach - finished product - and we unfortunately absolutely need to consider today the 30 point difference in our dollars :^(

ct0517 November 04, 2015 08:24

Bdp - did you see my previous post ?

Re: Room B - Quad 57 - Music Reference RM10 + Sub.

The arrows in the picture point to all the spots where sub/s have gone in the past.
I was hoping for some fun & guesses on which spot you guys thought worked best.
Well its location 12. Nearfield. Spot 11 works ok too. But above on the main floor close to spot 11 is my wife's couch for watching TV.
This is not good. Trust me on this one.

Bdp24 Did you email GR Research, or Rythmik?
I emailed Rhythmik with my requirements including the same picture with the arrows.
It lead to some back and forth dialogue.


**********************************************

Chris,

We have a lot of customers with Quad 57’s and Magnepan speakers as well. Our sealed subwoofer are good match for planar speakers in general. Depending on the size of your room, a pair of F12 or pair of F15HPs would do the job. If your room is less than 3500 cu ft than a pair of F12s would be OK. If your room is bigger then a pair of E15HPs or F15HPs will be the way to go.

Best Regards,
Rythmik Audio - Tech Support --------------------------------------------------

"ME"
thanks for your reply.

"Depending on the size of your room, a pair of F12 or pair of F15HPs would do the job."

22 ft wide - 18 deep but a room behind where I am standing is another 13 x 24 if door left open. 8 ft ceilings.
In using one large sub as an experiment the red arrow represents the best placement with 57's.
How would your subs factor in. Based on your experience which arrows would represent good placement ?
Is this enough info to give me an opinion.

Date: Mon, 2 Nov 2015 10:46:29 -0600
Subject: Re: Quad 57 - wayne picquet rebuilds

Chris,

In a room that size you have to go with a pair of F15HPs. About the placement, it’s really hard to say what’s the best place to put the subwoofers because every room is different. You have to try different locations, take measurement or do a subwoofer crawl until you find the best location for the subwoofer(s). Usually front wall close to a corner helps with extension and output but it’s not the rule all the time or for every room.

Rythmik Audio – Tech Support

ME -

for a two channel only Audio room, have you ever used a near field placement beside / behind the listening couch ? Chris

Chris,

I have my pair of F12SEs near field, one on each side of my couch. Of course, my room is only 2700 cu ft.

Best Regards,

Rythmik Audio - Tech Support
ME

interesting thanks.

Would you agree then for two channel - if you want the best bass at the listening couch that the best placement is nearfield?
This allows for the lowest volume setting on the sub. The sub is never stressed.
Chris


Chris,

Like I said before placement is different for every room. In my room near field is better and also I don’t have many placement options. You have to try different locations until you find the most appropriated for your room. But usually near field placement works in most rooms.

Rythmik Audio - Tech Support*****************************************************

That's how the discussion went.
fwiw - Just One F15HP that Rhythmic mentions in the email trail starts at $1200 us.(from website)


Bdp24 - The OB Sub can be used up to around 300Hz, so a stereo pair is the norm. Bdp

I have tried a conventional stereo pair of subs (borrowed) in line / close to the Quad 57's in room B.

My observations

1) The Quad 57 bass is too fast for them.
2) Inline or close to the Quads also forces you to use higher setting on the subs, which ends up clouding the Quad midrange.

Right now

In Room B - Quad 57's with the Music Reference RM10 and that one conventional sub in nearfield at position 12.
The previous compression of sound that I talked about on this thread in Room B with the quads has been fixed.
I am able to achieve 100 db peaks if I want. I listen around 80-85 db plus peaks. The room is filled with sound due to the positioning of the quads.
So thinking of bringing in a pair and using both in nearfield.

Bdp24 - Rythmik lists the OB Sub kit in their product listings
I have many tools, and as a cottage owner I do a lot of DIY carpentry. My problem as confirmed by my wife. I am good at making stuff to about 90% completion. Meaning it will work and not fall down. But I am terrible at finishing touches. I usually get on with the next project on the list. I still have not put in the base mouldings for my Room B yet.

So...

Prefer a plug and play approach - finished product - and we unfortunately absolutely need to consider today the 30 point difference in our dollars :^(

ct0517 November 04, 2015 08:24

Did you email GR Research, or Rythmik? Rythmik lists the OB Sub kit in their product listings, but all the discussion of the sub takes place on the GR Research AudioCircle Forum. Danny is much more into them than Brian, and the GR customers are audiophiles while Rythmik's customers are more home theater guys, as are most sub owners, I take it.

The OB Sub can be used up to around 300Hz, so a stereo pair is the norm. By the way, the 180Hz x/o frequency of the ET LFT-8b (from the panels to the sealed 8" woofer) makes the GR OB Sub a perfect replacement for the good-but-not-great woofer in the ET speaker. As with all Dipoles, there is a null at both sides of each sub, where the output from the front-firing and rear-firing woofers meet and cancel. So wherever in the room you place them, they need to face the listening position. Right next to the loudspeakers is a good starting location, but the controls on the Rythmik plate amp (rotary knob for phase 0 to 180 degrees, x/o frequency, damping, volume, etc) makes blending the sub with the speaker possible wherever it is located.

Danny Richie designed an Open baffle loudspeaker he named the Super-V, and it contains the OB/Dipole sub (with a 15" OB co-ax driver for midrange and highs). An owner of a pair of the Super-V just listed it on Audiogon, so you can look at it to get an idea of the look of the sub. The owner posted only one pic, and it's not a very good one. Maybe he'll send you some if you email him.

bdp24 November 03, 2015 13:30

Did you email GR Research, or Rythmik? Rythmik lists the OB Sub kit in their product listings, but all the discussion of the sub takes place on the GR Research AudioCircle Forum. Danny is much more into them than Brian, and the GR customers are audiophiles while Rythmik's customers are more home theater guys, as are most sub owners, I take it.

The OB Sub can be used up to around 300Hz, so a stereo pair is the norm. By the way, the 180Hz x/o frequency of the ET LFT-8b (from the panels to the sealed 8" woofer) makes the GR OB Sub a perfect replacement for the good-but-not-great woofer in the ET speaker. As with all Dipoles, there is a null at both sides of each sub, where the output from the front-firing and rear-firing woofers meet and cancel. So wherever in the room you place them, they need to face the listening position. Right next to the loudspeakers is a good starting location, but the controls on the Rythmik plate amp (rotary knob for phase 0 to 180 degrees, x/o frequency, damping, volume, etc) makes blending the sub with the speaker possible wherever it is located.

Danny Richie designed an Open baffle loudspeaker he named the Super-V, and it contains the OB/Dipole sub (with a 15" OB co-ax driver for midrange and highs). An owner of a pair of the Super-V just listed it on Audiogon, so you can look at it to get an idea of the look of the sub. The owner posted only one pic, and it's not a very good one. Maybe he'll send you some if you email him.

bdp24 November 03, 2015 13:30

Did you email GR Research, or Rythmik? Rythmik lists the OB Sub kit in their product listings, but all the discussion of the sub takes place on the GR Research AudioCircle Forum. Danny is much more into them than Brian, and the GR customers are audiophiles while Rythmik's customers are more home theater guys, as are most sub owners, I take it.

The OB Sub can be used up to around 300Hz, so a stereo pair is the norm. By the way, the 180Hz x/o frequency of the ET LFT-8b (from the panels to the sealed 8" woofer) makes the GR OB Sub a perfect replacement for the good-but-not-great woofer in the ET speaker. As with all Dipoles, there is a null at both sides of each sub, where the output from the front-firing and rear-firing woofers meet and cancel. So wherever in the room you place them, they need to face the listening position. Right next to the loudspeakers is a good starting location, but the controls on the Rythmik plate amp (rotary knob for phase 0 to 180 degrees, x/o frequency, damping, volume, etc) makes blending the sub with the speaker possible wherever it is located.

Danny Richie designed an Open baffle loudspeaker he named the Super-V, and it contains the OB/Dipole sub (with a 15" OB co-ax driver for midrange and highs). An owner of a pair of the Super-V just listed it on Audiogon, so you can look at it to get an idea of the look of the sub. The owner posted only one pic, and it's not a very good one. Maybe he'll send you some if you email him.

bdp24 November 03, 2015 13:30

Did you email GR Research, or Rythmik? Rythmik lists the OB Sub kit in their product listings, but all the discussion of the sub takes place on the GR Research AudioCircle Forum. Danny is much more into them than Brian, and the GR customers are audiophiles while Rythmik's customers are more home theater guys, as are most sub owners, I take it.

The OB Sub can be used up to around 300Hz, so a stereo pair is the norm. By the way, the 180Hz x/o frequency of the ET LFT-8b (from the panels to the sealed 8" woofer) makes the GR OB Sub a perfect replacement for the good-but-not-great woofer in the ET speaker. As with all Dipoles, there is a null at both sides of each sub, where the output from the front-firing and rear-firing woofers meet and cancel. So wherever in the room you place them, they need to face the listening position. Right next to the loudspeakers is a good starting location, but the controls on the Rythmik plate amp (rotary knob for phase 0 to 180 degrees, x/o frequency, damping, volume, etc) makes blending the sub with the speaker possible wherever it is located.

Danny Richie designed an Open baffle loudspeaker he named the Super-V, and it contains the OB/Dipole sub (with a 15" OB co-ax driver for midrange and highs). An owner of a pair of the Super-V just listed it on Audiogon, so you can look at it to get an idea of the look of the sub. The owner posted only one pic, and it's not a very good one. Maybe he'll send you some if you email him.

bdp24 November 03, 2015 13:30

Did you email GR Research, or Rythmik? Rythmik lists the OB Sub kit in their product listings, but all the discussion of the sub takes place on the GR Research AudioCircle Forum. Danny is much more into them than Brian, and the GR customers are audiophiles while Rythmik's customers are more home theater guys, as are most sub owners, I take it.

The OB Sub can be used up to around 300Hz, so a stereo pair is the norm. By the way, the 180Hz x/o frequency of the ET LFT-8b (from the panels to the sealed 8" woofer) makes the GR OB Sub a perfect replacement for the good-but-not-great woofer in the ET speaker. As with all Dipoles, there is a null at both sides of each sub, where the output from the front-firing and rear-firing woofers meet and cancel. So wherever in the room you place them, they need to face the listening position. Right next to the loudspeakers is a good starting location, but the controls on the Rythmik plate amp (rotary knob for phase 0 to 180 degrees, x/o frequency, damping, volume, etc) makes blending the sub with the speaker possible wherever it is located.

Danny Richie designed an Open baffle loudspeaker he named the Super-V, and it contains the OB/Dipole sub (with a 15" OB co-ax driver for midrange and highs). An owner of a pair of the Super-V just listed it on Audiogon, so you can look at it to get an idea of the look of the sub. The owner posted only one pic, and it's not a very good one. Maybe he'll send you some if you email him.

bdp24 November 03, 2015 13:30

Did you email GR Research, or Rythmik? Rythmik lists the OB Sub kit in their product listings, but all the discussion of the sub takes place on the GR Research AudioCircle Forum. Danny is much more into them than Brian, and the GR customers are audiophiles while Rythmik's customers are more home theater guys, as are most sub owners, I take it.

The OB Sub can be used up to around 300Hz, so a stereo pair is the norm. By the way, the 180Hz x/o frequency of the ET LFT-8b (from the panels to the sealed 8" woofer) makes the GR OB Sub a perfect replacement for the good-but-not-great woofer in the ET speaker. As with all Dipoles, there is a null at both sides of each sub, where the output from the front-firing and rear-firing woofers meet and cancel. So wherever in the room you place them, they need to face the listening position. Right next to the loudspeakers is a good starting location, but the controls on the Rythmik plate amp (rotary knob for phase 0 to 180 degrees, x/o frequency, damping, volume, etc) makes blending the sub with the speaker possible wherever it is located.

Danny Richie designed an Open baffle loudspeaker he named the Super-V, and it contains the OB/Dipole sub (with a 15" OB co-ax driver for midrange and highs). An owner of a pair of the Super-V just listed it on Audiogon, so you can look at it to get an idea of the look of the sub. The owner posted only one pic, and it's not a very good one. Maybe he'll send you some if you email him.

bdp24 November 03, 2015 13:30

Did you email GR Research, or Rythmik? Rythmik lists the OB Sub kit in their product listings, but all the discussion of the sub takes place on the GR Research AudioCircle Forum. Danny is much more into them than Brian, and the GR customers are audiophiles while Rythmik's customers are more home theater guys, as are most sub owners, I take it.

The OB Sub can be used up to around 300Hz, so a stereo pair is the norm. By the way, the 180Hz x/o frequency of the ET LFT-8b (from the panels to the sealed 8" woofer) makes the GR OB Sub a perfect replacement for the good-but-not-great woofer in the ET speaker. As with all Dipoles, there is a null at both sides of each sub, where the output from the front-firing and rear-firing woofers meet and cancel. So wherever in the room you place them, they need to face the listening position. Right next to the loudspeakers is a good starting location, but the controls on the Rythmik plate amp (rotary knob for phase 0 to 180 degrees, x/o frequency, damping, volume, etc) makes blending the sub with the speaker possible wherever it is located.

Danny Richie designed an Open baffle loudspeaker he named the Super-V, and it contains the OB/Dipole sub (with a 15" OB co-ax driver for midrange and highs). An owner of a pair of the Super-V just listed it on Audiogon, so you can look at it to get an idea of the look of the sub. The owner posted only one pic, and it's not a very good one. Maybe he'll send you some if you email him.

bdp24 November 03, 2015 13:30

Did you email GR Research, or Rythmik? Rythmik lists the OB Sub kit in their product listings, but all the discussion of the sub takes place on the GR Research AudioCircle Forum. Danny is much more into them than Brian, and the GR customers are audiophiles while Rythmik's customers are more home theater guys, as are most sub owners, I take it.

The OB Sub can be used up to around 300Hz, so a stereo pair is the norm. By the way, the 180Hz x/o frequency of the ET LFT-8b (from the panels to the sealed 8" woofer) makes the GR OB Sub a perfect replacement for the good-but-not-great woofer in the ET speaker. As with all Dipoles, there is a null at both sides of each sub, where the output from the front-firing and rear-firing woofers meet and cancel. So wherever in the room you place them, they need to face the listening position. Right next to the loudspeakers is a good starting location, but the controls on the Rythmik plate amp (rotary knob for phase 0 to 180 degrees, x/o frequency, damping, volume, etc) makes blending the sub with the speaker possible wherever it is located.

Danny Richie designed an Open baffle loudspeaker he named the Super-V, and it contains the OB/Dipole sub (with a 15" OB co-ax driver for midrange and highs). An owner of a pair of the Super-V just listed it on Audiogon, so you can look at it to get an idea of the look of the sub. The owner posted only one pic, and it's not a very good one. Maybe he'll send you some if you email him.

bdp24 November 03, 2015 13:30

Did you email GR Research, or Rythmik? Rythmik lists the OB Sub kit in their product listings, but all the discussion of the sub takes place on the GR Research AudioCircle Forum. Danny is much more into them than Brian, and the GR customers are audiophiles while Rythmik's customers are more home theater guys, as are most sub owners, I take it.

The OB Sub can be used up to around 300Hz, so a stereo pair is the norm. By the way, the 180Hz x/o frequency of the ET LFT-8b (from the panels to the sealed 8" woofer) makes the GR OB Sub a perfect replacement for the good-but-not-great woofer in the ET speaker. As with all Dipoles, there is a null at both sides of each sub, where the output from the front-firing and rear-firing woofers meet and cancel. So wherever in the room you place them, they need to face the listening position. Right next to the loudspeakers is a good starting location, but the controls on the Rythmik plate amp (rotary knob for phase 0 to 180 degrees, x/o frequency, damping, volume, etc) makes blending the sub with the speaker possible wherever it is located.

Danny Richie designed an Open baffle loudspeaker he named the Super-V, and it contains the OB/Dipole sub (with a 15" OB co-ax driver for midrange and highs). An owner of a pair of the Super-V just listed it on Audiogon, so you can look at it to get an idea of the look of the sub. The owner posted only one pic, and it's not a very good one. Maybe he'll send you some if you email him.

bdp24 November 03, 2015 13:30

Did you email GR Research, or Rythmik? Rythmik lists the OB Sub kit in their product listings, but all the discussion of the sub takes place on the GR Research AudioCircle Forum. Danny is much more into them than Brian, and the GR customers are audiophiles while Rythmik's customers are more home theater guys, as are most sub owners, I take it.

The OB Sub can be used up to around 300Hz, so a stereo pair is the norm. By the way, the 180Hz x/o frequency of the ET LFT-8b (from the panels to the sealed 8" woofer) makes the GR OB Sub a perfect replacement for the good-but-not-great woofer in the ET speaker. As with all Dipoles, there is a null at both sides of each sub, where the output from the front-firing and rear-firing woofers meet and cancel. So wherever in the room you place them, they need to face the listening position. Right next to the loudspeakers is a good starting location, but the controls on the Rythmik plate amp (rotary knob for phase 0 to 180 degrees, x/o frequency, damping, volume, etc) makes blending the sub with the speaker possible wherever it is located.

Danny Richie designed an Open baffle loudspeaker he named the Super-V, and it contains the OB/Dipole sub (with a 15" OB co-ax driver for midrange and highs). An owner of a pair of the Super-V just listed it on Audiogon, so you can look at it to get an idea of the look of the sub. The owner posted only one pic, and it's not a very good one. Maybe he'll send you some if you email him.

bdp24 November 03, 2015 13:30

Did you email GR Research, or Rythmik? Rythmik lists the OB Sub kit in their product listings, but all the discussion of the sub takes place on the GR Research AudioCircle Forum. Danny is much more into them than Brian, and the GR customers are audiophiles while Rythmik's customers are more home theater guys, as are most sub owners, I take it.

The OB Sub can be used up to around 300Hz, so a stereo pair is the norm. By the way, the 180Hz x/o frequency of the ET LFT-8b (from the panels to the sealed 8" woofer) makes the GR OB Sub a perfect replacement for the good-but-not-great woofer in the ET speaker. As with all Dipoles, there is a null at both sides of each sub, where the output from the front-firing and rear-firing woofers meet and cancel. So wherever in the room you place them, they need to face the listening position. Right next to the loudspeakers is a good starting location, but the controls on the Rythmik plate amp (rotary knob for phase 0 to 180 degrees, x/o frequency, damping, volume, etc) makes blending the sub with the speaker possible wherever it is located.

Danny Richie designed an Open baffle loudspeaker he named the Super-V, and it contains the OB/Dipole sub (with a 15" OB co-ax driver for midrange and highs). An owner of a pair of the Super-V just listed it on Audiogon, so you can look at it to get an idea of the look of the sub. The owner posted only one pic, and it's not a very good one. Maybe he'll send you some if you email him.

bdp24 November 03, 2015 13:30

Did you email GR Research, or Rythmik? Rythmik lists the OB Sub kit in their product listings, but all the discussion of the sub takes place on the GR Research AudioCircle Forum. Danny is much more into them than Brian, and the GR customers are audiophiles while Rythmik's customers are more home theater guys, as are most sub owners, I take it.

The OB Sub can be used up to around 300Hz, so a stereo pair is the norm. By the way, the 180Hz x/o frequency of the ET LFT-8b (from the panels to the sealed 8" woofer) makes the GR OB Sub a perfect replacement for the good-but-not-great woofer in the ET speaker. As with all Dipoles, there is a null at both sides of each sub, where the output from the front-firing and rear-firing woofers meet and cancel. So wherever in the room you place them, they need to face the listening position. Right next to the loudspeakers is a good starting location, but the controls on the Rythmik plate amp (rotary knob for phase 0 to 180 degrees, x/o frequency, damping, volume, etc) makes blending the sub with the speaker possible wherever it is located.

Danny Richie designed an Open baffle loudspeaker he named the Super-V, and it contains the OB/Dipole sub (with a 15" OB co-ax driver for midrange and highs). An owner of a pair of the Super-V just listed it on Audiogon, so you can look at it to get an idea of the look of the sub. The owner posted only one pic, and it's not a very good one. Maybe he'll send you some if you email him.

bdp24 November 03, 2015 13:30

Did you email GR Research, or Rythmik? Rythmik lists the OB Sub kit in their product listings, but all the discussion of the sub takes place on the GR Research AudioCircle Forum. Danny is much more into them than Brian, and the GR customers are audiophiles while Rythmik's customers are more home theater guys, as are most sub owners, I take it.

The OB Sub can be used up to around 300Hz, so a stereo pair is the norm. By the way, the 180Hz x/o frequency of the ET LFT-8b (from the panels to the sealed 8" woofer) makes the GR OB Sub a perfect replacement for the good-but-not-great woofer in the ET speaker. As with all Dipoles, there is a null at both sides of each sub, where the output from the front-firing and rear-firing woofers meet and cancel. So wherever in the room you place them, they need to face the listening position. Right next to the loudspeakers is a good starting location, but the controls on the Rythmik plate amp (rotary knob for phase 0 to 180 degrees, x/o frequency, damping, volume, etc) makes blending the sub with the speaker possible wherever it is located.

Danny Richie designed an Open baffle loudspeaker he named the Super-V, and it contains the OB/Dipole sub (with a 15" OB co-ax driver for midrange and highs). An owner of a pair of the Super-V just listed it on Audiogon, so you can look at it to get an idea of the look of the sub. The owner posted only one pic, and it's not a very good one. Maybe he'll send you some if you email him.

bdp24 November 03, 2015 13:30

Did you email GR Research, or Rythmik? Rythmik lists the OB Sub kit in their product listings, but all the discussion of the sub takes place on the GR Research AudioCircle Forum. Danny is much more into them than Brian, and the GR customers are audiophiles while Rythmik's customers are more home theater guys, as are most sub owners, I take it.

The OB Sub can be used up to around 300Hz, so a stereo pair is the norm. By the way, the 180Hz x/o frequency of the ET LFT-8b (from the panels to the sealed 8" woofer) makes the GR OB Sub a perfect replacement for the good-but-not-great woofer in the ET speaker. As with all Dipoles, there is a null at both sides of each sub, where the output from the front-firing and rear-firing woofers meet and cancel. So wherever in the room you place them, they need to face the listening position. Right next to the loudspeakers is a good starting location, but the controls on the Rythmik plate amp (rotary knob for phase 0 to 180 degrees, x/o frequency, damping, volume, etc) makes blending the sub with the speaker possible wherever it is located.

Danny Richie designed an Open baffle loudspeaker he named the Super-V, and it contains the OB/Dipole sub (with a 15" OB co-ax driver for midrange and highs). An owner of a pair of the Super-V just listed it on Audiogon, so you can look at it to get an idea of the look of the sub. The owner posted only one pic, and it's not a very good one. Maybe he'll send you some if you email him.

bdp24 November 03, 2015 13:30

Did you email GR Research, or Rythmik? Rythmik lists the OB Sub kit in their product listings, but all the discussion of the sub takes place on the GR Research AudioCircle Forum. Danny is much more into them than Brian, and the GR customers are audiophiles while Rythmik's customers are more home theater guys, as are most sub owners, I take it.

The OB Sub can be used up to around 300Hz, so a stereo pair is the norm. By the way, the 180Hz x/o frequency of the ET LFT-8b (from the panels to the sealed 8" woofer) makes the GR OB Sub a perfect replacement for the good-but-not-great woofer in the ET speaker. As with all Dipoles, there is a null at both sides of each sub, where the output from the front-firing and rear-firing woofers meet and cancel. So wherever in the room you place them, they need to face the listening position. Right next to the loudspeakers is a good starting location, but the controls on the Rythmik plate amp (rotary knob for phase 0 to 180 degrees, x/o frequency, damping, volume, etc) makes blending the sub with the speaker possible wherever it is located.

Danny Richie designed an Open baffle loudspeaker he named the Super-V, and it contains the OB/Dipole sub (with a 15" OB co-ax driver for midrange and highs). An owner of a pair of the Super-V just listed it on Audiogon, so you can look at it to get an idea of the look of the sub. The owner posted only one pic, and it's not a very good one. Maybe he'll send you some if you email him.

bdp24 November 03, 2015 13:30

Did you email GR Research, or Rythmik? Rythmik lists the OB Sub kit in their product listings, but all the discussion of the sub takes place on the GR Research AudioCircle Forum. Danny is much more into them than Brian, and the GR customers are audiophiles while Rythmik's customers are more home theater guys, as are most sub owners, I take it.

The OB Sub can be used up to around 300Hz, so a stereo pair is the norm. By the way, the 180Hz x/o frequency of the ET LFT-8b (from the panels to the sealed 8" woofer) makes the GR OB Sub a perfect replacement for the good-but-not-great woofer in the ET speaker. As with all Dipoles, there is a null at both sides of each sub, where the output from the front-firing and rear-firing woofers meet and cancel. So wherever in the room you place them, they need to face the listening position. Right next to the loudspeakers is a good starting location, but the controls on the Rythmik plate amp (rotary knob for phase 0 to 180 degrees, x/o frequency, damping, volume, etc) makes blending the sub with the speaker possible wherever it is located.

Danny Richie designed an Open baffle loudspeaker he named the Super-V, and it contains the OB/Dipole sub (with a 15" OB co-ax driver for midrange and highs). An owner of a pair of the Super-V just listed it on Audiogon, so you can look at it to get an idea of the look of the sub. The owner posted only one pic, and it's not a very good one. Maybe he'll send you some if you email him.

bdp24 November 03, 2015 13:30

Did you email GR Research, or Rythmik? Rythmik lists the OB Sub kit in their product listings, but all the discussion of the sub takes place on the GR Research AudioCircle Forum. Danny is much more into them than Brian, and the GR customers are audiophiles while Rythmik's customers are more home theater guys, as are most sub owners, I take it.

The OB Sub can be used up to around 300Hz, so a stereo pair is the norm. By the way, the 180Hz x/o frequency of the ET LFT-8b (from the panels to the sealed 8" woofer) makes the GR OB Sub a perfect replacement for the good-but-not-great woofer in the ET speaker. As with all Dipoles, there is a null at both sides of each sub, where the output from the front-firing and rear-firing woofers meet and cancel. So wherever in the room you place them, they need to face the listening position. Right next to the loudspeakers is a good starting location, but the controls on the Rythmik plate amp (rotary knob for phase 0 to 180 degrees, x/o frequency, damping, volume, etc) makes blending the sub with the speaker possible wherever it is located.

Danny Richie designed an Open baffle loudspeaker he named the Super-V, and it contains the OB/Dipole sub (with a 15" OB co-ax driver for midrange and highs). An owner of a pair of the Super-V just listed it on Audiogon, so you can look at it to get an idea of the look of the sub. The owner posted only one pic, and it's not a very good one. Maybe he'll send you some if you email him.

bdp24 November 03, 2015 13:30

Did you email GR Research, or Rythmik? Rythmik lists the OB Sub kit in their product listings, but all the discussion of the sub takes place on the GR Research AudioCircle Forum. Danny is much more into them than Brian, and the GR customers are audiophiles while Rythmik's customers are more home theater guys, as are most sub owners, I take it.

The OB Sub can be used up to around 300Hz, so a stereo pair is the norm. By the way, the 180Hz x/o frequency of the ET LFT-8b (from the panels to the sealed 8" woofer) makes the GR OB Sub a perfect replacement for the good-but-not-great woofer in the ET speaker. As with all Dipoles, there is a null at both sides of each sub, where the output from the front-firing and rear-firing woofers meet and cancel. So wherever in the room you place them, they need to face the listening position. Right next to the loudspeakers is a good starting location, but the controls on the Rythmik plate amp (rotary knob for phase 0 to 180 degrees, x/o frequency, damping, volume, etc) makes blending the sub with the speaker possible wherever it is located.

Danny Richie designed an Open baffle loudspeaker he named the Super-V, and it contains the OB/Dipole sub (with a 15" OB co-ax driver for midrange and highs). An owner of a pair of the Super-V just listed it on Audiogon, so you can look at it to get an idea of the look of the sub. The owner posted only one pic, and it's not a very good one. Maybe he'll send you some if you email him.

bdp24 November 03, 2015 13:30

Here is an older pic of my Wayne Picquet Quad 57's in Room B - (in progress still) :^(

Quad 57 - Room B

The arrows each show a different sub placement identified by a number. Each time the sub is on the floor where the point is :^) - furniture in the way on some numbers.

Room is 22 feet wide. 18 feet deep with a stair case that leads to an insulated door to the main floor. In the pic I am standing in the doorway of Room A that I mentioned in the previous post which. If I leave Room A door open, it makes Room B's (Length) & volume much larger. A medium room anyway imo? A large room to me is where you go to see movies.

Like this

The Quads are wearing their screens in this older pic. Are 7 feet from the front wall. The high positioning (Arcici stands on the black concrete bricks) eliminates the one person in a narrow listening spot scenario that u read alot about. In this setup you can actually stand up and walk around. Although the center voice will follow u around. Kinda of cool. Is this not what singers do on stage anyway ? Move around :^)
This space outside of Room A is sort of a backwards number 7. What can be seen is the top of the seven - the bottom of the 7 split out by the curtain on the right.

Two subs are better for balancing out the room waves but for purposes of having some fun and learning here. Assume you are only using one large sub 12 inch conventional woofer. Using low level line outputs from preamp. Sub has full features including volume, and crossover frequency controls.

What position (arrow/number) do feel works best in this room/setup according to my ears :^) with Quad 57's.

Guesses ?

***************************************

Bdp24 - There is a DIY sub that is unusually good with Quads.......

......The OB Sub DIY kit is available from both GR Research and Rythmik, and the plans for the W- and H-frames can be found on the GR website
thanks Bdp24. I have added them to my search and actually sent the company an email outlining my room/speaker requirements. I will let you guys know what they come back with. I look forward to a guess from you on the above exercise. :^)

ct0517 November 02, 2015 07:52