ChrioN
Well-known member
I've built 4 headphone amps, which I need to hook up to a balanced line output.
I'm going for a simple opamp based balanced-to-unbalanced converter, that will feed all 4 amps. Its the (a) version:
The questions is, do I need to buffer the line signal? The headphone amps have 1Mohm impedance/amp, and the line "sees" all 4 amps/impedances=250kohm
...or does the balanced-to-unbalanced converter work like a buffer?
If I need a buffer, should it come before or after the bal-to-unbal-converter?
I'm going for a simple opamp based balanced-to-unbalanced converter, that will feed all 4 amps. Its the (a) version:
The questions is, do I need to buffer the line signal? The headphone amps have 1Mohm impedance/amp, and the line "sees" all 4 amps/impedances=250kohm
...or does the balanced-to-unbalanced converter work like a buffer?
If I need a buffer, should it come before or after the bal-to-unbal-converter?