A 1210 has a fixed motor, which has 2 parts: A Brushless DC Stator is fixed
to the base (AKA the plinth) and the Rotor is actually embedded in the
platter. It works (as all electric motors do) by electromagnets
repelling/attracting magnets to produce motion. There's some ripple built
into the process because the electromagnets in the stator switch magnetic
polaritys to push/pull the magnets in the rotor(platter). This can be
damped by adding mass to the rotor, and the SL1200 does this, but the
platter is relatively light so it isn't perfect.
All the complaints from audiophiles like this mention 'coloration of
treble' and collapse of their much-loved 'soundstage' -- a properly
maintained SL1200 has very little ripple or vibration that's audible. In
other words, audiophiles complain about things they may actually just be
imaginating to justify spending thousands on fancier turntable.
As for the bearing -- which is in the center of the platter -- I've never
heard of anyone replacing them. It is a part that audiophiles do have fancy
replacements for, on the theory that if it has less frictional resistance
it will sound better. Dunno about that either.
On Mon, Apr 27, 2015 at 6:34 PM Clint Anderson <clinta@gmail.com> wrote:
quoted 21 lines that too> that too
> motor wears the screw/screw wears the motor
> if kent says it hasnt made a difference in 20 years i guess ill assume
> maybe it only applies to shitty non-technics direct drives :)
>
>
> Clint Anderson
> Systems Engineer
>
> On Mon, Apr 27, 2015 at 6:24 PM, kawayama <kawayama@gmail.com> wrote:
>
>> I thought it was the vibrations from the motor, which could conceivably
>> be heard through the pick-up, that was the problem with direct drives?
>>
>>
>> --
>>
>> constant shallowness leads to evil.
>>
>
>