So it's been a bad month amp wise (DB750gate with Fedex, a used DB659 didn't work out), but things are looking up for sure. Last week I bought a factory-refurbed SWR IOD from Low Down Sound for $375 including footswitch AND warranty. Bob confided that it used to be Bill Dickens' unit. I'm running it with an Aguilar GS410 cab, a Crest CA-6 power amp, and my EBMM Sterling. True, SWR is more famous for clear highs than woody lows, but it's proven a nice match for my low-endy Sterling. I've had experiences in the past where the Sterling can over-bass Ampeg rigs. The SWR is, I think, a nice complement to a MM with the treble just a slight bit down and the bass a slight bit up. I've owned SWRs before--Studio 220, Bass 350, SM-400, and SM-500--to be precise. None of them had a tone I like as much as this one. Without a para EQ, the IOD is most like the Bass 350, functionally. But the present of the push-pull warmth from the tubes puts it in a whole other universe tonally. Other preamps regularly get love on these forums that is withheld from the IOD. But this is one of those times when I have to say, you gotta look at the WHOLE signal chain and add stuff that makes sense. The IOD has been a great choice for my sound and at half the price of my next choice, it's a sound deal.