No filters the only thing is the crossover point which is a very steep butterworth, anyway tried two amps in various polarity of wiring, nothing doing, man I think I might need to tear this thing apart. We are talking Just under clipping, on two separate xti's so basically 1000watts per channel into 8ohm. I can kinda hear the bass standing outside the front door that's it. I must have some kinda leak internally or something, this is maddening, I have went all around the outside seams, and are leaks I can feel/hear, so idk, really wanted to spend my weekend listening not building this monster a 2nd time.
Things I have tried:
switching wire polarity, a 2nd xti, 2 xti's at once then switching polarity, different output channels on the yamaha, left, right, Left+Right on both outputs, tried y input with 1 xlr on the amp, with two xlr's, stereo with two, sum 1+2, with both, tried running the crowns totally and completely as power amps with no crossover, seems to make zero difference, I think I must have gotten something wrong inside the thing did not fit together especially well. Man if this turns out to user error as I'm sure it is I really hate myself today.