I already have it, thank you.
Regards and enjoy the music,
Raul. |
Axel, no Micro and no flywheel?? unbelievable. you have to change this immediately. I am eager to hear how you like the flywheel and if you hear a difference...
a good friend of mine also adds a flywheel to his Micro, he visited me... |
Thuchan,
>>> good friend of mine also adds a flywheel to his Micro, he visited me...<<<
And, so what happened?
Does it make THE difference or is FM_login's take closer then DerTonarms'?
There were BIG differences of opinion...
SME's (like mine) use some pretty involved speed control box which one might argue obviates ~ 'fly-wheeling'.
As said: ... accentuate the positive... :-) |
Axel, I never wanted to use this word but now I will use it in a negation form to answer your question. The flywheel in this environment is definitely no BS ! |
active vs. passive flywheel ??
as I am very happy with the VPI SDS active flywheel - the technology used by VPI inside the SDS is excellent and also the metal parts are drilled precisely - I will now test another flywheel, a passive one.
I will come back with the results and a picture of the flywheel setting very soon. |
Hi..I am running a basic mid range Micro Seiki BL-99v with a fr-64fx. Do people recommend using the vacuum platter, or a cu-180 mat with a leather cover and a st-10 stabilizer instead?
thanks! |
Hi Boidos, I am running the vacuum platter on my SX 8000 II, which is of course an inbuild function, as well as a Micro cu-180 mat on my Nakamichi TX-1000. If you have the option for the vacuum and it is working without big noise and does its job properly i would compare it with the sound quality provided by the cu-180 mat (with small textil layer on top). Just test the sound quality and decide for the better one. If you have the original Micro cu-180 mat it should provide a good sound. |
I have now testet the Micro Seiki HS-80 - which is a passive flywheel- on my MS 8000 and the VPI SDS/dual motor flywheel - which is an active flywheel - on my MS 8000 II.
Both flywheels stabilize the sound picture but the VPI combo is some kind of a dream. The sound gets more precise, more solid. The music plays like on perfect stage.
I am now considering using two VPI combos (2 x SDS, 2x dual motor flywheel) at each side of my MS 8000. The HS-80 I will put at the right side of my MS 8000 II.
What I learned is that most motors of the vintage area are ok (basically a simple design) but not as good as well thought solutions like the VPI. You may improve your turntabe by 1.) using a flywheel and 2.) using an active version. |
Thuchan, try using a quality direct-drive turntable, like a Technics SL-M3, to drive your Micro-Seiki via VHS tape and see what happens. You may like it. |
Hiho, thanks for your suggestion.I am pretty fine with my VPI drives in addition to the MS drive. If you look at the VPI SDS you see that this is a masterpiece of Harry Weissfield. Most people underrate the SDS, a very cleverly combined steering wheel from many different excellent parts.
I know from audiophiles who build a TT around two SDS flying wheels. I now can imagine what kind of quality in motor precision they get. |
Thuchan, did you ever find a SZ-1? |
Downunder,
I found a friend who has both machines. I will visit him in the next year. do report on my findings. promise!
have a good new year! |
hi Thuchan, sorry to revive an old thread. was wondering if I could get your thoughts/opinions on various flywheel configurations with Micro SX tables.
I have a Micro HS-80 flywheel & agree this helps "stabilize the sound picture". my platter speed has always been consistent (& without noticeable fluctuation) when used with Micro RY5500 motor & Micro Kevlar or silk thread.
do you think the benefits of replacing the Micro RY5500 motor with VPI SDS/dual-motor flywheel is primarily due to its built-in flywheel? (just as Micro SZ-1M flywheel-motor used for Micro SZ-1T)
do you think VPI SDS/dual-motor flywheel results in HS-80 flywheel becoming redundant, or do you find there's even more stability when both flywheels are employed?
have you experimented with different belts, threads, etc. between your VPI flywheel & Micro platter?
also interested to hear your comparisons of SX-8000 II vs. SZ-1T. |
Hi 11flat6,
no problem with reviving. I am convinced that you can improve and stabilize a good turntable by the following measurements:
1) ensure you have separate isolation platforms for motor, table and flywheel
2) use a motor and pully which are in good condition and work absolutely stable (in case of older Micro designs maybe check, lubricate, exchange the transformer and/or capacitors)
3) better go for belts than threads. ensure the belts have the same distance and measure the belt tension. should be the same value for both belts
4) the VPI double motor driven by the SDS is one of the most precise and stable motor/steering combinations on the market today |
Thuchan, you recommend three separate isolation platforms for motor, table and flywheel. How can one control relative movement between the three? If they move differently, would that not effect belt/thread tension and thus effect speed?
The Timeline database thread discusses the early SOTA tables that have the motor mounted on a sub chassis which is separate from the platter, so they could move relative to each other and according to some users, this caused speed issues. |
hi Peterayer, the same case (ie. speed instability) could technically be made if a turntable's motor, table & flywheel all rested on a single platform or shelf.
it's important to consider if motor, table, flywheel, & platform(s) beneath turntable & associated components are rigid or suspended. |
Peterayer, what Tuchan is suggesting is simply a fixed separate platform on the same plane under each component instead of one large one for all three. Setting up of belt tension is no different from them sitting on one platform. Theoretically this way you're isolating each of the 3 from interacting with the others mechanical resonance. |
11flat6, Yes, I agree.
Dkarmeli, yes, I agree with this as long as relative horizontal movement is fixed. However, I was more concerned with relative vertical movement between the three and this would be dependent on the type of isolation and if it moves in the vertical plane. I'm most familiar with Vibraplane platforms and if one deflates at a different rate than the others, problems with belt tension and thus speed may occur.
I suppose if the movement is slight and only in the vertical direction and the belt/thread has the room to move up or down the platter, but the horizontal distance remains the same, there would not be any problems. |
Peterayer, in Tuchan's set up there are 3 separate fixed platforms sitting on top of a larger shelf. There's no movement in any direction unless intentional. Quality 4 point active air bladders will eliminate the issue you mention. Even then the affect of passive one loosing moderate level depends on the turntable setup or the equipment that's sitting on top of it. Personally I'm not a fan of air platforms under high mass tables, but that's relative to my equipment and tastes. |
Love the moniker,11flat6. |
Theoretically, you are setting up a system with three different resonant characteristics, which could either be inaudible or cause some issues due to a negative effect on the constancy of belt tension. (One platform in vibration or resonating while another is not, etc.) I would be interested to know, theoretically, why 3 is better than one. I am not claiming I know what's best, just interested in the theory. |
