30 years on...

Hi,

Just some clarifications.

ONLY if all items involved are rigidly mounted to the chassis. If the motor is not mounted rigidly it can move relatively to the other parts.

The first does not neccesarily result from the second. The issues are more ones of damping and resilience to airborne vibration.

This is a fundamental logical error. Stylus drag will impact even on a turntable with a heaviliy pre-loaded bearing which adds it's own drag. You end up with the sum of all loads, so stylus drag is still effective, it's effect is merely reduced by the ratio between pre-load and stylus drag.

Ciao T

 

Hi,

BUT Stereophile omitted to mention exactly WHAT the LP-12 was still competetive with.

You might argue that the Yugo or Lada are still competetive cars, as long as the competition is a Trabant (after all a german car).

Note, again, I am not knocking Linn, my comments where that is a reasonable (apart from pricing) and solid turntable which works okay, but it is easily bettered in this day and age. According to you it is very significantly bettered by a souped up version, which in itself constitutes proof positive that YOU actually think the LP-12 is okay, but not the end of all (otherwise why change to the souped up version).

L8er T

 

More modern

More modern designs wouldn't sit the platter on a microphonic hollow plinth, and use a cheap, usually uneven, pressed steel subchassis held by wobbly springs. For example, a more modern deck of the same design school, and at the same price point as the LP12, is the Kuzma Stabi Reference. The Stabi uses a solid plinth and a four-point silicone damped suspension, twin motors, etc.

 

Are solid plinths always better than hollow ones? Give your reasons.

Describing springs as "wobbly" smacks of desperation.

"Usually uneven"???

 

I think it's implicit: "at its price".

 

Without going in to individual designs, i would assume yes.
Knock a hollow box and then a solid one...

 

"Knocking" the plinth is not a usual part of my vinyl replay routine. How does it help?

 

Its fairly obvious, think of resonance.

 

All it tells you is whether something resonates when you knock it, or not. IOW, it's an irrelevant thing to do.

 

Why irrelevant?
It would be safe to assume that if it is a more resonant structure it would also suffer more from airborne vibration (assume it is isolated well from structural borne vibration)

 

That's an assumption. Everything resonates.

Rather than knocking the plinth - which tells you whether it resonates when it is knocked, but not much else - a better way of assessing a TT is to play a record on it.

 

hollow ones are more microphonic than solid ones

no, it smacks of something archaic

ever tried getting the azimuth correct on an LP12?

 

Its pretty much common sense.
But you ignore these points because apparently the LP12 defies known laws of science.

Personally i couldnt care either way, if your happy with your deck

 

Evidence?

Yes, it's very easy. All springs are "wobbly", BTW.

Penance, it's not "common sense", and the LP12 defies its critics, but not any "laws of science".

 

Physics.

As for the LP12, like i said, i dont have an opinion.

 

Penance, thanks for the input. Physics, eh?

 

Yes.

 

If you want to knock TT plinths in the hope of learning something, go right ahead.

 

I dont need to, i know about it already.

 

An expert on the LP12, at last. OK, Mr Physics, so how do you characterise the LP12's strengths & weaknesses in relation to what happens when you knock the plinth*?

* something I've actually never done, in 20+ years of ownership.