I think the best way to get maximum signal would be to run balanced output - two filters per channel, one fed in-phase and the other anti-phase digital data. Then buffers, then a transformer between the buffered phases. With a 5V supply you'd have a chance of putting 2VRMS into the trafo.
Here's a variant of the noDAC filter designed for use with an active buffer (Zout is 4.7k). It has a loss of only 0.2dB.
Could I use with active tube amplification?
Here's a variant of the noDAC filter designed for use with an active buffer (Zout is 4.7k). It has a loss of only 0.2dB.
Hi abraxalito, could you provide the inductors?
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