Hey Geoff. I've no idea how much vibration is a problem. I have some Anologue Innovations in sole spring replacement bobbins that should do what you suggest above regarding removing the springs.Geoff.R.G wrote: ↑Sat Nov 26, 2022 10:51 am The premise that a suspension is needed to eliminate feedback is, of course, flawed. At normal, domestic, listening levels it is extremely difficult to induce feedback in a record playing system, even when done deliberately. A turntable on a cabinet sitting on a suspended wooden floor may benefit from some springs to isolate the assembly from the floor but a solid shelf attached to a brick wall is a better solution.
My first record player was a BSR auto changer, I was probably about 10 at the time. Essentially it was very similar to a Lenco with the chassis sitting on springs to provide some isolation from the speaker in the same cabinet. The next was a Pioneer PL12D, a similar idea but with a belt drive. Only later did I progress to a suspended turntable, a Thorens TD160, which I still have. The point being that in the intervening 50+ years I have never encountered a problem with feedback. Sure I have heard plenty of it in audio systems involving microphones but never in a turntable, irrespective of the construction.
I suspect that replacing the springs in a Linn LP12 with solid spacers and sitting the plinth on isolating feet would solve the “going out of tune” problem permanently. As I see it, the suspension is a solution to a problem that, for 99.99% of users, doesn’t exist.
The Thorens doesn’t need regular adjustments, in that respect it is fit and forget.
The LP12 disciples all bang on about how even motor vibrations can make their way to the stylus hence one of the reasons the motor is on the top plate isolated from the subchasis via the springs.
Personally I find there is so much opposing information about concerning this that one does not know what to believe. As ever the only way for me to know is to do the comparisons myself. Not sure I can be arsed though. I seem to remember DQ removed the suspension from his Pink Triangle and liked it.