Krell KSA 250 – rustling on one channel


Hi,

I bought one of these beasts on the used market from a store and from the day it arrived at my home, the left channel is causing me grief: from time to time, there would be like disconnections on it in the form of rustlings that would either be audible from my listening spot and/or cause the sound on the left channel to decrease and the whole soundstage to shift rightwards.
this could be happening a couple times an evening or sometimes once every other day. when it happens, i disconnect and reconnect either the HP cable or the interconnect and the problem usually disappears.
It’s less likely to happen if I first let the amp warm up before playing music and it’s more likely to happen while playing music in low volume.
I live in Paris and service for those amps here is basically inexistent and if existent, it’s not very reliable and extremely expensive. Other than that the entire Krell support in France is doubtful (they don't even answer emails).

any ideas where this problem could be coming from?

how would that be resolved and how much it should cost?

any recommended Krell service centres in Europe?

Thanks for your help.
amuseb
I also forgot to mention, not knowing if related, the left channel also warms up much faster than the right one. once reaching the working heat point the heat differences don't seem as obvious but when firing up the amp you can clearly tell the left channel is gets hotter faster.
Hi,
From previous experience the relay for the on/off switch become corroded and will have to be cleaned by a tech. The amp has to be partially disassembled it cost me around $300.00 US to have mine fixed up.
hi Amuseb
It sounds to me like the dealer knew of this problem before he sold it to you and "ONLY" if so,you should let others know so it doesn't happen again.
Good Luck sir
Hello Amuseb My Krell Ksa Amp have problem with power board, Can I have Steve email so I could seek help from him. Thanks, Guy25
Amusebouche: So how was the technical issue corrected? It would help others with your experience and if I may say so, show some respect to all those who tried to help you. Too many threads for help are not "closed" by the OP.