I recently traded my SVP-CL for this unit. Ive owned 3 SVP-Pro's and been inside about 7 of them, and this is, by far, the cleanest, quietest, most functionally perfect and well maintained example of this unit Ive seen in 5 years. Everything works perfectly. I really wasnt happy with the midrange control on the CL, and having had great luck with the SVP-Pro in the past I made the swap, but I think I may have outgrown the Ampeg sound entirely. A/B'ing the SVP-Pro with just a Presonus HP4 (headphone splitter), there is tons of tube goodness there, but at the expense of a great deal of midrange information. I think Im looking for something "Flatter" or more "hi-fi", but hopefully something with some tube warmth. Trades Considered Phil Jones Bass P-1 preamp BBE Bmax-t + Cash or a great HSC Eden Navigator ISP Beta Bass Preamp Aguilar DB680 or DB659 Any High-End preamp, preferably one with some type of parametric mid and / or an onboard compressor would be considered. My vast preference goes to the ISP or the Eden. Not interested in selling, no SS preamps other than the ISP would be considered.