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. 

marblesmike

@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  

@willy-t which way of turning the adjustment screws lifts the arm board higher? I have only done this on the old TD 16x/TD 14x models.

I'll also look at the other suggestions before sending to to Lyra. I can try another mat. 

There are 3 screws that are covered with plastic caps in the corners of the top of the plinth.  Remove the covers and use a wide flat screwdriver to turn the screws clockwise to raise the suspended part of the table. Please let me know if this works. 
thanks