Sorry I didn't respond earlier. I've tried crossover freqs at 80, 100, 40 and now 50Hz. The last one gives me the best results so far. The slope for the sub is at 24dB so it doesn't interfere much with the Quads above the crossover frequency. The difference between 40 and 50 is subtle but useful for some low instruments. If you check my system page, you'll see that the position of the sub is somewhat unusual but works much better in my room; perhaps that's also why 50Hz works well.
Cheers,
Joel

jfd01 March 23, 2008 12:07

I found the Quads start to tail off below 40Hz and dissappear altogether at 30Hz. I modelled the Revel response to cut in between these frequencies. The sub therefore remains silent for a lot of recordings but is essential in others for revealing the lowest registers. Have you achieved better results doing something more sophisticated?

chips January 07, 2008 04:31

Hi Chips,
What's the crossover frequency you're using for the Revel? Do you have a separate high-pass filter for the Quads, or what's the setup to cut off the Quads below the crossover frequency? Have you experimented with various freqs?
Cheers,
Joel

jfd01 December 20, 2007 12:21

Nice selection of gear. Congrats and enjoy!

Ken

kehut September 09, 2007 11:29

System edited: Pictures added.

chips September 08, 2007 14:25

No, not at all. Both highly compatible. The Canary's are rated at 50W, 8 ohms. My usual listening volume is around 50% to 70% which is plenty loud enough. I've never turned volume full up. My set up is a bit cramped (especially considering the 989s) so I've resisted taking pictures. Room sizes in London are pretty ungenerous.

chips August 23, 2007 11:16

Sorry, I should have noticed the revel in your list already! I'm curious about the Canary with your 989s: you don't have any problem driving them with the Canary? I would have thought that would be a mismatch (efficiency and impdedance-wise)? These are the 300B push-pull monoblocks, right?
By the way, will you post some pictures? It would be great to see the setup. Thanks.

jfd01 August 13, 2007 00:11

Yes I have a Revel 15a sub. The 989s are great but they do not reach the last half octave which is particularly noticable on some records. MFSL planets come to mind - really dissapointing without the sub.

chips July 23, 2007 09:21

I also own a pair of 989s and listen to orchestral music. Have you experimented with a sub? I know that the 989s are fine in the bass, but I found out that there's quite a bit more clarity in the mid-register with a sub to take care of the low stuff.
Cheers. Joel

jfd01 July 07, 2007 14:38