I was thinking about upgrading my amp. Trading in my SVT-3PRO for the SVP-PRO and a poweramp. The SVP-PRO is the same preamp as the 3PRO, and I love the tone of the SVT, but I would prefer the headroom and versatility of a seperate power amp. I paid $650 for my 3PRO about 6 months ago. How much do you think I could get out of it since it's in mint shape? I don't really want to lose money on this deal, but expect I might. The SVP-PRO is $500 in Musicians Friend, but I can probably get it for $350 from Guitar Center. I am looking at the Carvin DCM600 power amp. It's 600w bridged 4 ohms, 250w 4 ohm per channel, 300w 2 ohm per channel. The cost is $350 from Carvin. Has anyone used this power amp? I really don't know much about Carvin amps. Are they reliable, or would it be better to buy bigger now? I can always upgrade later anyways.