UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Any suggestions on treble issue on a Cambridge A5 amp reignited after 20 years?

ClenchedLiver · 22nd Feb 2021, 8:33 pm

Hi, after some years in storage I unboxed my old hi-fi system, principally to play the old vinyl that I still have. All is sweet EXCEPT, the treble control on my Cambridge Audio A5 amplifier (prob about 20 years old) does not appear to do anything. The amp sounds OK to me, listening to vinyl and CD players. It has a direct selection button, for bypassing the bass and treble controls. By monkeying with that, I can work out that the bass tone control operates well. But I am sensing no difference no matter where the treble control knob is placed. I can get a new amp, but I am not a big fan of wastage if it can be avoided. I tried listening to drum-rich music with hi-hat sections that should be of high frequency. I cannot sense them zoning in and out when moving the treble knob though. Does anyone here with technical nous think it is worth me trying to get somewhere with this problem?

22nd Feb 2021, 8:33 pm	#1
ClenchedLiver Diode Join Date: Feb 2021 Location: Norwich, Norfolk, UK Posts: 3	Any suggestions on treble issue on a Cambridge A5 amp reignited after 20 years? Hi, after some years in storage I unboxed my old hi-fi system, principally to play the old vinyl that I still have. All is sweet EXCEPT, the treble control on my Cambridge Audio A5 amplifier (prob about 20 years old) does not appear to do anything. The amp sounds OK to me, listening to vinyl and CD players. It has a direct selection button, for bypassing the bass and treble controls. By monkeying with that, I can work out that the bass tone control operates well. But I am sensing no difference no matter where the treble control knob is placed. I can get a new amp, but I am not a big fan of wastage if it can be avoided. I tried listening to drum-rich music with hi-hat sections that should be of high frequency. I cannot sense them zoning in and out when moving the treble knob though. Does anyone here with technical nous think it is worth me trying to get somewhere with this problem?