Hello,   I recently bought a pair of Lambda Nova Signature.  But I've experienced bizarre clicking/buzzing noise with it, which occur several times after one half hour (or more). It's more sensible at low levels of music and on the two channels L&R. So, I don't know if it a problem...

So I plan to modify my SRD7 low bias into pro Bias by remove the transil diode to obtain 220Vrms (310V peak), and change 1uF 250V into 1uF 400V, and put 1N4007 diode. I should have a pro bias voltage close to 580V. What do you think about it ? Thanks

Hi, May be this subject have been discussed, so sorry. I've a Stax Lambda Nova Signature and I found an old SRD7 (for 45€) but in normal bias mode. Do you know if I change it in Pro bias by changing components, the results will be better ? With this Stax earspeakers, which amp. is the...