Originally Posted by
RothwellAudio
I don't know the exact model your power amp is and Classe seem to have a lot on their website but most seem to have a voltage gain of 29dB. That's a bit on the low side for a passive pre-amp so be prepared to use it with the volume control quite high. The input impedance seems to be 50k (single-ended) or 100k (balanced) which is ok for a passive.
RFI rejection actually isn't particularly good with electronically balanced inputs so I wouldn't be swayed in favour of balanced for that reason.
Also, I'm not a fan LDR volume controls whether in a passive configuration or an active one.
I'd suggest that Tisburys are so cheap that it's worth getting one to try out anyway. I'm not really convinced there's much advantage to be gain from a balanced alternative.
+1
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