Does AF0 mean Air Force One or Air Force Zero? It's a bit confusing. The thread title would have me believe that this is the new AF Zero turntable, but it seems like the AF1 Premium table with the motor from the future AF Zero turntable, correct? Does anyone know when the Zero table will be released and how it will differ?
I find it interesting that two contemporary tables which many describe as SOTA, the AF Zero and the American Sound AS2000 are both high mass belt drive designs, one suspended, one not. I would be very interested to read (or hear) a direct comparison between one of these and say the new Monaco or Technics DDs. How are they likely to sound different? Tang will soon be able to compare the AS2000 to the AF1.
Does AF0 mean Air Force One or Air Force Zero? It's a bit confusing. The thread title would have me believe that this is the new AF Zero turntable, but it seems like the AF1 Premium table with the motor from the future AF Zero turntable, correct? Does anyone know when the Zero table will be released and how it will differ?
(...) AF-0, AS-2000, the Apolyt, etc. will have their own sound and character. (...)
(...) The main motor is a 3 phase motor, Nishikawa said, that the motor itself is similar to the ones known from Studer in Switzerland (...)
No, but I know from it’s design specs kind of what to expect sound wise.Did you listen to the current Apolyt?
the shown AF0 motor is a further development from the last year shown version. The Air Bearing is now on a better level. The main motor is a 3 phase motor, Nishikawa said, that the motor itself is similar to the ones known from Studer in Switzerland
The total AF0 is not yet ready, but he „hopes“ soon.
AF-0, AS-2000, the Apolyt, etc. will have their own sound and character. What's important is that they all sound sound natural, believable and are able to get past the limitations of playback, not how they compare to one another. This is something that you might find difficult to understand if you're used to only one table at a time, but you actually want those differences.
david
David, Do you mean that their own sound and character is not important because they all sound natural and believable? I am curious about how that sound and character differs. A violin will sound natural and believable whether it is played outside in some field, inside in a living room or on the stage of a large concert hall. But it will sound remarkably different in each case. I understand why some people actually want differences even though I have only one table and arm. I'm trying to understand what those differences are and if they can be described. Perhaps they need to be heard and experienced, and can not be written about accurately. I am also curious about how this "natural and believable" sound and character differs from that of the top direct drive tables like the new Monaco.
People say that mass matters, how energy is handled, and how speed is maintained. I'm sure this is all correct, but these are insufficient to describe how something sounds.
It’s actually a single phase motor that you can drive with a three phase supply too.
david
I assume David you referring to Ida Haendel the violinist not Handel the composer
Pretty broad spectrum of violinists Kramer Heifetz and Haendel that’s for sure
Sorry, David, I think it is not.
The Studer capstan motors - manufactured by Papst - are true three phase induction motors. If you check them they have three wires and equal resistance between any of the three - three independent wingdings connected in triangle. They can be however be driven with a single phase using a dephasing capacitor. Studer published a very interesting article on the how to accurately control the speed of such motors when driven by a single phase - it is basically the circuit they use in their tape machines. I suppose that at that time building a true three phase drive would be too complex and large to implement - it is why he devised the very clever circuit they implemented using the rotor in-built tachometer.
As far as I have read, the last Studer/Revox machine to use a synchronous motor was the G36.
BTW, although they can apparently look similar on photos, the winding arrangements capstan motors are different from the the reel motors.
It's not the same motor in there Micro. Do you have a copy of that article?
david
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