Thanks! What's the turnaround time for something like this? I'm in the States.
Thorens TD 320/Lyra Delos ringing/clinking noise
Hello all. First post here.
I have had my Lyra Delos for about 9 months and love it. After careful setup and the break-in period, tree sound really opened up. Initially, I was using it with a Thorens TD 147, but I was getting a weird ringing/metallic sound that was audible on headphones.
Various testing determined it wasn't the motor on the table, so I assumed it was an issue with the Thorens suspension or tonearm (TP 16 mkIII). I then bought a Thorens TD 320 with a TP 16 mkIV tonearm, carefully mounted the Delos, and what do you know, I'm getting a very similar sound. It's almost like a clinking/ringing sound at around 700hz.
Before I start swapping cartridges (not easy with these Thorens tables), is this the kind of sound that could be the result of a faulty suspension/damping inside the Delos? The tracking is fantastic, the cantilever rides at a 90 degree angle during playback, which would lead me to believe that it's not the Delos suspensionm. I am still within warranty period though, so I'd like to get this resolved sooner than later if it could indeed be something defective with the cartridge.
- ...
- 16 posts total
Hmmm - 16-pole synchronous motor and about 700-Hz ringing. I believe the motor itself runs at 250-rpm for 33-rpm playback. Can you try 45-rpm and see if the frequency of ringing changes? Before taking up Jonathan's terrific offer, could I suggest using a stethoscope (need not be expensive) to listen for vibrations at various points around the chassis, especially near the motor and near the arm base. The platter is supposedly non-resonant but it is a big chunk of zinc. Do you have a platter mat which should damp vibrations in the platter? |
@richardbrand +1 on the mat recommendation! My favorite mat is the Hiraoka SE-22. Bought at Harvey Sound in NYC in 1978 for $20. Still in use on my Ariston RD11S. Superb Japanese craftsmanship! |
Hello I just set up a Thorens 318 Mk2 and this may be a possibility of your problem The suspension of the arm board platter may be too low and rubbing the plinth This produces a clinking sound that the platter actually makes when rubbing against the plinth. If you raise the platter arm board higher the sound may disappear. If the noise is from the cartridge I would have no idea how it could produce such a sound Good luck |
- 16 posts total