Distributor/buffer for 4 headphone amps ???
I have 4 headphone amps and need a distributor/buffer as an input module.
The source signal is a BALANCED LINE output - one for L and one for R (stereo)
I have found this Figur 4 page 6:
But I need no gain and wonder if this princip schematic could be implemented with ordinairy op.amps. - the special is these "internal" resistors - maybe it's overkilled.
How can this be inplemented ?
What you need is basically a balanced line receiver like this. You can also use the fancier instrumentation amp circuit, preferably with 0.1% resistors where it counts.
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