I get occasional crackling noise in the right rear channel. It´s not the speaker and the noise is there on all inputs. The very odd thing is that it doesn´t seem to be linear with the volume level.

Hello, can any techno wiz help? I have an Aiwa PXE855 turntable (with the equalizer amp switch set to ON)plugged through a Cambridge audio pre amp 540p (into the MM input)into my Cambridge audio amp ...

Modern op amps have much higher operating bandwidths than their predecessors. These new devices are excellent building blocks that can greatly simplify the design and construction of high-bandwidth ...