Bi-amp Integration

Hello,

I currently have an Aragon 4004 MkII and I am just getting set up with a pair of Alon V Mk II speakers. The 4004 is a "good" amp, and dual mono, but not as refined as their 8008BB, which I originally wanted to upgrade to. However, I understand Aragon's 8002 amp, at I think 100wpc, sounds better than either of the two bigger amps. Therefore, I was thinking the way to go might be to use the 4004 on the bottom and get an 8002 for the mids and highs. My preamp is an Adcom GFP750, which has dual outputs to make biamping easier.

My question is, how do I adjust the sound level between the 8002 and 4004 amps so they integrate properly with each other in a bi-amped configuration, or is using two such different powered amps just a bad idea?

Another option would be to get another 4004 MkII and run them horizontally bi-amped to take advantage of short speaker wire runs.

Thanks, Tim