First off...thanks to everyone that helped out in the other threads I started when I was looking around for an amp, and after I decided on one of these. This forum is a great resource. This will probably be a long writeup. But I figure, for anyone going through what I just went though, all the opinions you can get are helpful before dropping this kind of cash on an amp. Anyways. I got the amp this past weekend and had a chance to play it with the band a few times already. In case anyone is thinking about one these heads, i'll give you an idea of where i'm coming from. I play a Music Man Sterling, all finger style. My main cab is an Ampeg SVT classic 4x10HLF. I also have a Mesa Deisel 6x10 that I tried with the 750 as well. I guess you could call us a rock band. I like dark bass tone, dark, full, low-middy and a little old-school warmth (aka breakup) and growl, ala old SVT. The guitar players use a Vox AC-30, and Fender Bandmaster w/2x12, respectifully. So I don't have a ton of volume to compete with like some guys on here. I'm coming from a long line of tube amps. The most recent was a late 70's SVT. My backup head is a GK400RB, which i've been using since the SVT was retired. I've been through an SVT, SVT-CL, SVT-II, Mesa D180, Mesa 400+, Orange OR-120, Ampeg V-4, and a few other heads. The reason I was looking for a new amp was because the SVT just didn't sound good at lower volumes when we played smaller venues. And the low end was tough to control in boomy rooms. First impression of the DB750...it's ******* loud! Unbelievably loud! WAY louder and cleaner than any other amp i've ever owned or played through. It's also much more focused and articulate than any other amp i've owned, or even played. Unbelievably clear and defined. But this amp has a LOT of power. I had a hard time getting the natural compression i'm used to from an amp like an SVT, at the same volumes. I can get it from cranking the pre-amp gain up a little past noon...but at that point, the master is at like 25%, (just barely opened up) and it's a little touchy. I've only played the amp for 2 practices...but my initial thoughts are: Pros: The amp has some SERIOUS tone going on. I mean serious. It's one up on any other amp i've played...but it DOES need to be opened up a little bit to hit the sweet spot. I haven't yet decided if it's too much amp for my band or not. The definition is amazing. The reponse of the amp feels incredible, it does exactly what you want it to do. Lightening quick response. It's just so focused and clear. But it has a wonderful warmth to it, and a great growl when you push the pre-amp a little. Close your eyes, and you'd think you were playing through a fantastic vintage tube amp. Think SVT, but (much) more refined, less boomy, and much quicker and tighter. Lots of mids too. But they're voiced in just the right place. They're warm and growly...doesn't interfere with the guitars at all. I love mids, and I found myself rolling the mid knob back a hair...I usually boost a little 220K with the SVT. All in all, the tone lived up to all the hype that was generated from me reading about these. I was skeptical about buying one of these, they're so expensive. I was ready to turn it right around if it wasn't blowing my socks off. So far, so it...I don't see it going up on the chopping block. I'm pretty impressed with it. Cons: I'm not sure if it's too much amp for me. The thing is seriously loud, and i'm not sure if i'll be able to open it up enough to hit the sweet spot. But...we have some gigs coming up this weekend, so i'll see what happens when I get it in a larger room filled with people. Venues seem to suck up volume a lot quicker than our little practice room. If it's just too powerful, i'll definitely just get a DB359. I love the tone so much, I don't want to go back to anything else (aka the SVT). But I also found it a little thin in the lows compared to the SVT or the 400+. I find myself cranking the bass knob up pretty high to get the same amount of low end i'm used to from the SVT. Then again, I do that with my GK as well. The GK may have a tad more low end on tap though. It's also pretty heavy. I'm coming from heavy tube amps, so it doesn't bother me. But solid states does not equal light in this case. It's as heavy as many tube amps i've owned. All in all though, i'm pretty impressed with the thing. And if I can get it to compress like I want it to at a reasonable volume, I won't be purchasing another bass amp...probably ever. If not, i'll be in the market for a DB359. I also popped it open to have a look at the build quality...i'll save you the long tech banter. But the short of it is that it's built quite well. 5 PCBs, secured to the chassis extremely well. Good quality boards. What really got me was the attention to detail with components. You have lots of different types...it's obvious they did some taste testing. You see metal film resistors, for instance, in the power supply. They're quiet, and stand up to heat very well, and don't drift much at all. Then there's carbon comps in the pre-amp in select positions. Carbon comps are usually warmer sounding, though not as technically refined as metal films. Lots of diffeent types of caps as well, stratigecally placed. A lot of thought went into this amp. I'd like to see chassis mounted tubes and pots in an amp of this price range. But i'm thinking that the amp is so complicated already, chassis mounting those things would've made it either larger, harder to assemble, or both. The strain relief is actually superb...so the benifit of more consistancy from a full PCB pre-amp probably outweighs any possible added relability from chassis mounting select parts. Well, that's my take on it. If you didn't want all that info, apologies. If you're looking into one of these, I hope it helps out a bit.