Hmmm -- what's the point of the active x-over since Balthus does NOT have a pre-amp OUTPUT (i.e. you can't drive the active x-over with the power amp's output..)
Balthus: if I understand correctly, you want to drive 2.1 channels from the Acurus?? I.e. say, a cd (two channel stereo) with a subwoof? If so, doesn't yr subwoof have a "low pass" control? If so, you don't need another active x-over.
You DO need a pre out, though.
Or am I totally confused..