How well does the 7700 perform under high loads. I have been using a couple of 400W stereo tube amps for a while have used transistor amps in the past. The amps I am using now are getting old and I was thinking of upgrading to the 7700. My only problem is my ESS AMT3 speakers are not real efficient and I need at least 200 Watts of tube power to drive them. Will a 200W per channel 7700 be up to the task? For example my Phase Linear 400 would peg the VU's at near 0 db levels while the tube amps run at about 75%.