Opinions please: I am the very proud owner of an Ampeg SVP-CL preamp + Crest CA9 power amp. It is the most amazing bass tone I have ever used, and I've had a lot of bass heads before. I put the Ampeg setting on #4 (Ultra Low Classic). I run it through a Bergantino HT322 cabinet. Feed the beast with an Ernie Ball SR5 HH. It is amazing! The new Ampeg SVT-8 Pro head has the EXACT preamp and it is powered (1300 watts @ 4ohms). Only 2 spaces as well. Same preamp tube configuration ( 2 - 12ax7 & 2 - 12au7 tubes) The reason I'm considering just getting the head is because I'll save about 30 lbs off my rack, save a rack space (so I could go back to a 4 space rack instead of 6), and get an Effects Loop back (even though I never use it anyway). I'm assuming the tone should be very close to exactly the same. Does anyone disagree? I know the Crest CA9 is a great power amp, especially for it's 700:1 Damping ratio. It's exactly what Jim Bergantino highly recommends to use with his cabinets I guess basically I'm asking is if anyone who uses a preamp + poweramp could get the same preamp with built in power, would they? Why or why not? Thanks!