Took delivery a DarkVoice 336 headphone amplifier on Friday from Massdrop. I set it up with the original tubes and gave it a quick listen. right channel was ok, left channel no music, just a pronounced hum, doesn't change as volume is increased or decreased. A quick google suggested I remove the output tube and let the preamp tube burn in for 48 hours or so. So I just tried it with almost 48 hours of burn in and same results.
Anyone else have experience with this amp? Will the hum really disappear with additional burn in time?
Anyone else have experience with this amp? Will the hum really disappear with additional burn in time?