I just picked up an other old SWR amp head. I love them. I plug in a sansamp bass driver programmable in to them and its like i can get any sound i want. More importantly my sweet sound that i love and have fought so hard to find. My newest edition to my family is a SWR SM-400. Got it for $200. I keep picking these old SWR's up. I mainly use my sm-500. I already have the studio 200, the SM-500, and the SM-900. I'm just missing the SM-1500. I know they are all the same pre amps just different power amps. I have owned upper end Ampeg, Ashdown, Fender, etc. Is there anything comparable i can check out? Anyone else sickly into them? Show me your SWR rigs! You can get them cheap as hell these days and it seems no one plays them. Oddly i love the cleans they get but I love making them go dirty. Reminds me of putting a tube screamer to a plexi. Just dark, low, growly, and super bouncy at the same time.