I've been running a preamp/power amp combo for years. I bought a Kern IP-777 right after they came out, then bought a QSC PLX 2402 to run with it. I had Ampeg cabinets (SVT410HE and SVT18E) and used that setup for 6-7 years. I got tired of hauling two cabinets around, so I sold the Ampegs and bought a Schroeder 412R. And try as I might, I haven't been able to get the sound I like with the Kern/Schroeder pairing. Thinking it was probably the tone stack in the Kern, I bought a Mindprint Envoice II channel strip to try and gain a little more flexibility. The Mindprint was better, but still not quite what I was looking for. I've seen a lot of positive reviews, both here and elsewhere, for the Yamaha PB1. So when one came up on eBay a month or so ago, I snagged it for $120. I've used this thing on several gigs with the two bands I play with, and I simply can't get over how good it sounds. I have a Goliath III cab I use in smaller venues, and one night on a small stage I commented to the guitarist that it sounded a little dull to me. His comment was, "You should come and stand on my side!" So I went over before we started the next set to hear for myself - holy @#$%! The tone I've been trying to find for years was there in spades. I read on another thread here what the flat setting is on a PB1. I tried it and it's a little too crispy for my ears (with either my Stingray 5 or my highly-modified Dillion Dagger). I will say the parametric on the PB1 is completely insane - you can get just about any sound you want out of it. If there were ever a piece of gear that deserves a reissue, this is it. Yamaha, how 'bout it?