The last visit was some weeks ago and we met us again, mainly to compare Phonostages with the identical cartridges and to check some settings.
I brought my own Lyra Titan i - mounted in the Arche Headshell - and my 71dB Lamm LP2 to compare the sonic impressions with Tables, Arms and Transistor Phonos (2xKlyne 7)...
Quite a task...
The Phonostages
Now 2 x Lyra Titan i
After a while we discussed about Phonostage Design, most we know well having a top System went all away from active High Gain Phono Preamps to Tube Designs with high quality SUTs. So we left the Klyne amps and concentrated the the comparison to the Lamm LP2s, specially the high gain unit from me showed after a short time its superiority and we stayed with that one. We think, they dont damage the Signal so much and you can hear a more lifelike reproduction with extreme finesse and colourful sound and Voices are reproduced with full emotional impact, the Bass is in a way stunning and can fill the room with the lowest registers. The preamps excel in layering the sound so that each voice or instrument can be easily picked out and followed. Yet everything played together well integrated.
The Axiom with Etna
In conventional - active - phono preamplifiers, damping is provided by load resistors. As a result, a significant amount of signal energy is wasted when converted to heat within the loading resistors. Conversely, when input transformer has been carefully engineered to effectively damp resonant energy occurring at high frequencies while transferring the maximum amount of useful lower frequency energy to the active input stage. This results in significant increases in dynamic range with no penalties of increasing noise.
Traditional step-up transformers fall short in many performance areas such as frequency response, phase linearity (group delay), distortion, susceptibility to external hum fields, and poor common mode noise rejection. This is largely due to design and manufacturing limitations of the past as well as the need for high step-up voltage ratios to meet the requirements of a high input impedance (47K ohms) input stage. Well, there are differences ....
I tried to make my first Video ever :-)
The first one I made in the evening, the Laser was seen very good but it was too dull overall, so I started a new one in daylight.The file is compressed from optical quality but I think it is ok. The Laser is seen in reality below 2 letters (the "CK") in the name Fruhbeck. I stopped after 2 minutes, I wanted to avoid the make the file too huge but the Laser was still below these 2 letters after 5 minutes. That's ok I think :-)
The most other turntables I checked with that unit were out of specs after 5 seconds....no matter 1, 2 or 3 motors, expensive motor-controllers, no matter how expensive....here you see clearly that marketing replaced engineered solutions...It measures the REAL speed when the diamond is in the groove. The force (VTF) is remarkable.
The majority of turntables run quite well when the Diamond is Not in the groove, but honestly, who is interested in THAT????
Performance is with tone, not without.
When I did the tests with adjustable motors while playing, they run out of specs (drift) and then I made the corrections, the difference in sonics is easy to hear. Deeper soundstage, no smeared dynamics and much better modulated details.
Today we have two "opinions":
The unit "does something", Product A has better bass, Product B is analytic and needs this or that cartridge/Arm for compensation or endless "updates" because the designer is unable to do something right, some call it Prat
or
the "Opinion" is based on software reproduction. The emotion is coming from the recording, the purest form of a sonic truth...
"Opinion 1" is"keep the business alive (those owners cant hardly wait the time for the next upgrade and to recommend it to the others)
"Opinion 2" is "done right"
Some explanations for that video:
The laser in real life touches 2 letters (or better said, the width is 2 letters), that means, the camera cuts a little bit. But it doesn't matter because the red dot (reduced to a dot sometimes) is always in the same area. In the movie it "moves" a little bit from one letter to the other, but after a few spins it is below the 2 letters again...
I compared it with another video I made in the evening, there the red line is of course much better to be seen BUT it is also not in the length it has in reality. But here is doesn't matter also because the red sign is always in the same position, too.
I guess, with a good video camera is would be seen better, I used a normal pocket camera, IXUS from Canon.
But what is also interesting, I selected one of the most dynamic recordings ever made, that means, the groove modulation is huge!
And based on that, the result is outstanding good, normally such tests are done with a linear frequency sweep or low dynamic range. This makes it easier because the Diamond has much less works and the VTF is more stable in those limited grooves.
You will never find a comparison with such a dynamic recording, now you know the reason (smile). Yes, the Seiki construction is able to hold the right speed even when the groove distance has some lower peaks, it needs probably 1 or 2 rotations and then the dot is back in the former position. Not bad for a 25 year old Design :-)
Micro Seiki RX 5000 & Sutherland Timeline
Now, some may think, going back to old DD is the solution...well, they have a proper motor management but they are not able from construction to be named as "High End". Let's say, they work, they accelerate and that's it. You can compensate their weeks with colored cartridges but they are the way they are...endless vibrations into the platter ....
Their electronic corrects the speed permanently, "...accelerate--reduce---hold---accelerate--reduce---accelerate---ans do on and on" based on that, listening Piano with it is a pain for me. There was a demonstration about that in the Munich High End Show 2013. All visitors rated the DD negative compared to a regular running belt Turntable...but that is only one technical point, there are much more for a good reproduction.