Yep thats the 4000. I;ll need a couple days with it. Does it have enough inputs for ya?? My brother in law is on his way to pick things up as we speak, he lives 58 miles away in fresno. The stuff was in Merced, local pickup only. I think I did ok. Those 700's will shed those cabs in a hurry. Better get a service manual coming for the 4000. I'll have my man ship it first.
If your 700 pops when you turn it off the front differential pair has drifted in their parameters. A closely matched set will bring it right back in line. I have several hundred TIS93's, 97's MPSA93's, and I match within 1 ohm and offset is .001-.002. No more thump.