p.robustini
Active Member
Hi evertbody.
I own a Thorens TD165 with original TP11 arm and Grado Prestige Gold cart.
I'm trying to tune the suspension: it had a bad bounce or almost no bounce at all.
I've followed the instructions of Tim Balley's famous article at the Analog Dept. but I still have a problem.
While setting the balancing of the floating sub-chassis I was able to achieve (almost) horizontality and centering but I don't seem to be able to achieve the correct height:
the sub-chassis stops bouncing after a few bounces (5-6) and I can hear its lower edges touching against the rubber on two pieces of wood which are supposed to avoid it to be leveled too low.
I can't set the chassis's level much higher because two of the springs (the one closest to the arm and that near the motor) are almost completely compressed (the adjuster nuts are almost at the end of their run).
I feel I'd need to level the chassis a bit higher but I can't. It's like the springs had lost their resistance and yield under the weight of the sub-chassis. Possible? Can replacements be found?
Or maybe could I have done something wrong during the adjustements?
All this happens at full load: inner platter, outer platter, mat, record and clamp. No damping there to add up weight.
Any advice?
I own a Thorens TD165 with original TP11 arm and Grado Prestige Gold cart.
I'm trying to tune the suspension: it had a bad bounce or almost no bounce at all.
I've followed the instructions of Tim Balley's famous article at the Analog Dept. but I still have a problem.
While setting the balancing of the floating sub-chassis I was able to achieve (almost) horizontality and centering but I don't seem to be able to achieve the correct height:
the sub-chassis stops bouncing after a few bounces (5-6) and I can hear its lower edges touching against the rubber on two pieces of wood which are supposed to avoid it to be leveled too low.
I can't set the chassis's level much higher because two of the springs (the one closest to the arm and that near the motor) are almost completely compressed (the adjuster nuts are almost at the end of their run).
I feel I'd need to level the chassis a bit higher but I can't. It's like the springs had lost their resistance and yield under the weight of the sub-chassis. Possible? Can replacements be found?
Or maybe could I have done something wrong during the adjustements?
All this happens at full load: inner platter, outer platter, mat, record and clamp. No damping there to add up weight.
Any advice?