I just bought this off eBay. The seller says it was fine when he sent it and there's no sign of damage. The noise gets louder as you turn it up so I'm thinking it's in the pre section. It happens regardless of source selection even with nothing connected (except the speakers and power cable of course!) so not my dac.
It's like an oscillating noise with several discrete buzzes per second that slowly speed up and slow back down again. I'm thinking it's an op amp or something but wondered if anyone has any ideas how to remedy the issue?
Of course I can return it but I rather like the sound but I can't live with the noise, being very obvious in quiet passages. I don't want to send it off for repair I'd rather just return it if I can't sort it myself.
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