Can't tell you what your response would be with this setup but if you have both amps then trying it out is a breeze. Just get a couple of splitters and run one set of each side to each amp. Use the R/L of the KSA for bass, the R/L of the BAT for tweeters. You'll need two sets of speaker wire (one for each amp) and your speakers will need to be bi-wirable (have four binding posts on them). You'll also need to remove the jumper strap that's on the Proacs now if you're not already bi-wiring them. The only concern you have is gain mismatch. In other words, the gain in one amp may not be the same as the other. If this is the case you'll have to build a little resistor network to cut the signal at preamp output to the higher-gain amp to make the two equal. Otherwise the bass is going to sound louder than the tweeter, or vice-versa. Call BAT and Krell and ask them the gain on these amps to see if they are close. As far as sound goes, I've heard quite a few people who have done this with differing results. Some said it just wasn't a match, some absolutely loved it. I don't think anyone complained that it ruined anything. As for the power rating, as long as you don't turn the preamp volume knob up to 11 you'll be fine. Shawn Harvey
Bi-amping solid state & tubes?
I just got a pair of BAT VK60s to drive ProAc 3.8s, but I miss some of the bass from my old amp (KSA200s). I was thinking of bi-amping the Krell on the bottom and the BATs on the mid/highs, but have been told it would cause more problems than it would solve. How do I do it (any special modifications or hookups) and what are the pros & cons? Is it too much juice - it would be 320 watts/side and the speakers are rated for 50 to 250?