I switched from an swr 350x to an interstellar overdrive and QSC rmx 1450. I did this because typically I would run out of headroom with the 350. Well, I just got back from a gig and I am still having the same problem as I had to crank up both the power amp and the preamp and the clip light was occasionally coming on when I needed to push it. Now this is just a basic classic rock band. No heavy metal or anything and nobody else is playing with big amps. What am I doing wrong??? Any suggestions??? I am thinking it is just the wrong cab combo. I have two 8 ohm Eden cabs a 210 and 115 at 350 and 400 watts rms respectively and I ran them in stereo. I am afraid to run them bridged at 4 ohms because of both over powering the speakers and running the power amp too hot. Anyway, I thought going from 350 watts to 560 would be enough. I have another gig tomorrow and I may try running it bridged and cross my fingers Any ideas?????