richardkrebs
Responses from richardkrebs
| New Turntable Advice @richardbrand Re feedback, IMO it is fundamentally the same. We are comparing an output to an input and correcting if needed. Sure in a TT we are looking for a constant output, while as, you say, in an amp we are looking for a constant multiple o... | |
| New Turntable Advice @lewm Yep feedback is a can of worms, or a Pandora's box...name your analogy. But done right it works wonders. I have never understood the naysayers criticizing DD TTs and their use of feedback yet they happily listen to amps with local and gl... | |
| 2020 update : JC Verdier La Platine @thekong. I have read reports of people using a DD motor to drive a platter via a belt or thread. You would need to be careful in selecting a motor that can spin up the heavy LaPlantine platter, but replacing the centre spindle with a pully co... | |
| 2020 update : JC Verdier La Platine @thekong While the quality of the three phase drive in the Techdas is certainly very good, a three phase drive utilizing a generator and three amplifiers is very common. Virtually every DD TT has this architecture, going way back to the 80s. Some... | |
| Source of Fremer's "1 arc second" claim? Gentlepeople. As I said earlier, we assembled a panel to help with the fine tuning of the program. The procedure was the same every session. When a change was made, those present talked about transients, note decay, dynamics, inner detail, ambie... | |
| Source of Fremer's "1 arc second" claim? Guys I think that we need to cut MF some slack. In my conversation with him, I said something to the effect that a change in controller motor command in the region of one arc second resulted in an audible change in the sound. While you could arg... | |
| Source of Fremer's "1 arc second" claim? @oberoniaomnia Yes, it is an interesting trade off. We did not need to go to the max averaging available, so I'm happy with the hardware design choices I made. . The change from no averaging to averaging of 2 counts was astonishing, we all heard... | |
| Source of Fremer's "1 arc second" claim? @pryso I designed the OMA K3 and K5 turntables. Jonathan then used an industrial designer for the aesthetics. My company provides the machined rotating parts and the K5 chassis. The cast iron chassis is made in the States. Both TTs are assembl... | |
| Source of Fremer's "1 arc second" claim? Gentlepeople Michael's arc second comment probably came from a conversation I had with him about the speed sensing architecture in the OMA K3 turntable. The design sends a little over 1.3 million pulses, counts, to the motor controller every revo... | |
| Straight tonearms without offset angle I have zero experience with underhung arms but, have followed this and companion threads with interest. Some of you may have seen the talk given by Jonathan Carr to a group or audiophiles in which, amongst other topics, he talks about underhung ar... | |
| Discuss The Viv Lab Rigid Arm As Lew points out, AS is set by the user at a constant magnitude. Those who successfully opened the Youtube link I posted (the second one) will, I suspect, be surprised at the significant variability of stylus drag, and at times, its "violence".... | |
| Discuss The Viv Lab Rigid Arm Ok obviously that link didnt work...you may need to copy and past on the youtube search box lets try this Скатывающая сила как измерить (youtube.com) | |
| Discuss The Viv Lab Rigid Arm Ok I have a theory... On a conventional arm with offset headshell..if you draw an imaginary line extending the cantilever, past its suspension point, all the way backwards to the plane of the arms pivot point. Viewed from the front of the cartrid... | |
| If I could afford, I’d purchase 100% Oswald Mills Audio gear @dover. You keep track of my qualifications and my alleged transgressions on A'Gon. Really? For the record. I hold a New Zealand Certificate in Engineering (electrical). Back then it was a 5-year part time or 3-year full time qualification from ... | |
| What is the “World’s Best Cartridge”? Dover The point I was making is that, contrary to what you said, properly set up SUTs do not exhibit problematic phase errors. Nothing more, nothing less cheers |