I think you need to be more specific just re valve amps perhaps Jack.Who makes balanced amps in domestic audio? In particular are there any balanced valve amp manufacturers (besides BAT)?
OP asked about domestic audio, so I wouldn't even bother with you clarificationI was specifically meaning the circuitry, I can see why you might want balanced inputs/outputs, e.g. if interfacing with pro equipment...
Ah, but I know Jack like pro equipment and wondered....OP asked about domestic audio, so I wouldn't even bother with you clarification Proponents of balanced circuits go on about superior CMRR as if its a free lunch and the circuits are absolutely perfectly balanced :dunno:
Personally, only in the case of an MC cart into the primary of a SUT can I absolutely say that a floating balanced connection is of definite worthwhile benefit, once the secondary goes into an active stage then all bets are off, and balanced has no intrinsic benefits over SE given the complexity involved in real world solutions.
ok, much more info, helps much clearer understanding.......Noise is the problem and we are having difficulty eradicating it.(Balanced equipment suffers less from it, as we all know.)
More specifically, as Pete knows, I am using pro audio electronic xovers (Ashly) (balanced) into domestic amps (unbalanced)(well 4 are unbalanced, the sub is pro audio).
Continued failure to solve the problem has me turning to the idea of swapping out amps that are suffering for balanced designs as alternatives. Hence the question the purpose of which is to assess my chances of doing this and using valve amps which I favour.
Latest move is to get hold of some Canare L-77s which is much better shielded than the Cat 6 presently installed
Im also running a thread on Speakerplans Forum seeing what the other side of the fence has to offer.
One option is that of in line isolation transformers. I'm looking at this at the moment.
No, I dont really know what is meant by 'balanced' but I know that the screen doesnt have to do 2 jobs, the return signal and screening, and if you have a third wire that does the return and cancels out the nasties that promote noise. Or something.