I just bought my 1st power amp so I could power 2 4ohm cabs and for other reasons. I used my eden wt-400 as the pre and ran into 2 cabs. .....I hate the way it sounds. I assumed that the power amp would be basically neutral but that is not the case at all. I don't mean that I don't -prefer- the tone I mean I hate it. The only way to make it listenable at ALL was to seriously cut the mids and treble. I have never heard so much treble coming out of these cabs. One cab is a 12 w/no tweeter and the other cab is a 2x10 and I had the tweeter almost all the way off. I'm wondering if I hooked it up wrong and am causing a phase issue. I'm only running the power amp at 35% or so. Could it be phase cancellation!? The cabs are stacked on top of each other. here's how I hooked it up http://www.talkbass.com/forum/showthread.php?t=470094 any help would be greatly appreciated.