One more time I do apologize to drfrink24 for hijacking this tread. I posted on new tread, but since everyone is responding here please let me know how to proceed.
Thank you all for the suggestions - I really do need it.
For now input is coming from the true balanced source. I am planning to add Pavel's buffer boards once I finish power amps.
I am little bit confused about inverting half. In my set up I am feeding balanced signal from the crossover/ pre-amp to the amp. I checked with Brian GT on this issue. Reply that I got was that I could run GC as they are, in non-inverting mode, if fed by balanced signal and than bridged in output.
I originally felt that I should do as you are suggesting, half inverted and half non-inverted.
The existing set up acts like it is doing it's job. An example - it cancels out DC at the output. If I need to change from Brian's boards to inverted mode, would I need to change to different resistor values or just reverse input polarity?
Thank you all
AR2
Thank you all for the suggestions - I really do need it.
For now input is coming from the true balanced source. I am planning to add Pavel's buffer boards once I finish power amps.
I am little bit confused about inverting half. In my set up I am feeding balanced signal from the crossover/ pre-amp to the amp. I checked with Brian GT on this issue. Reply that I got was that I could run GC as they are, in non-inverting mode, if fed by balanced signal and than bridged in output.
I originally felt that I should do as you are suggesting, half inverted and half non-inverted.
The existing set up acts like it is doing it's job. An example - it cancels out DC at the output. If I need to change from Brian's boards to inverted mode, would I need to change to different resistor values or just reverse input polarity?
Thank you all
AR2
Upupa Epops said:To AR2 : Cleaner solution is using of all amps in the same mode + balanced buffer, not half inverting + half noninverting, 'cos in this case amps haven't quite the same parametres.
Thank you Upupa Epops,
I think that is what I am doing. I do not have a drawing for the buffer, but essentially it is consisted of opa627 and BUF634. I am doublig them to pass ballanced signal that is coming from Behringer 2496. Behringer has true balanced signal output.
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