I bought/install an 2nd hand AR Power Amp (Classic 60) last nigth. I found two problem.
1) the speaker sound like 'hmmmmmm' even thought i turned the volumn to the minimum.
2)the sound is very loud even i turned up volumn a little bit (around 3 degree).
Don't know whether affected by the match of the Pre and Power Amp. Can any big brothers help. Thanks a lot.作者: ddesignlab 時間: 2006-2-13 01:59
'hmmmmmm' ..have you checked all the tubes of your pre-amp and power amp? or open the case to make sure no wires disconnect....or broken.
Did you check before buy and make make sure has no such sound before connect together?
May be problem of tubes , hope you can find it out.