I just got a Grand Prix pre, and am putting a Crown CE 1000 behind it. I ran just plain stereo full range today and it sounded great (and loud!). I'm going to try bridged mono later today. I also want to experiment w/bi-amping, but have only found stereo 2-way/mono 3-way crossovers (rack mountable). My question is this, is it OK to use just one side (ch 1) of a stereo crossover? Or should I use both (my Grand Prix has 2 output jacks), and mono-sum the LF and use ch 2 for the highs? I'm unfamiliar w/crossover operation and any help would be appreciated. I think what I want to do is mono 2-way?