As has been touched on above, the "purist" solution for the VR4 is to passively biamp. Putting an active xover in the signal path is going to introduce unnecessary processing. The top and bottom modules of that speaker already have high pass and low pass filters (respectively) that allow a full-range amp to drive each. The only "compromise" that will be needed is some sort of signal splitter at the output of your preamp, unless you are luck enough to have 2 outputs on the preamp. I would strongly advise against trying to bypass or modify the internal filters of the VR4, which have already been optimized for module integration.
Active crossovers
There's an abundance of info and opinions on just about every topic under the sun in audio, down to the smallest minutiae.
I have problem finding opinions on active crossovers and which sound good, or not. Or which offer good bang for the bucks. Or whether tubed crossovers are better than SS.
So what's the skinny on this?
Oh, and I'd like to ad a Stupid Crossover Question of my own:
The XO will match the levels of the low/high amps, but each amp will have a different sensitivity. Would you have to match the amp levels each time you change the volume?
KP
I have problem finding opinions on active crossovers and which sound good, or not. Or which offer good bang for the bucks. Or whether tubed crossovers are better than SS.
So what's the skinny on this?
Oh, and I'd like to ad a Stupid Crossover Question of my own:
The XO will match the levels of the low/high amps, but each amp will have a different sensitivity. Would you have to match the amp levels each time you change the volume?
KP