Got this from Tombowlus (great guy, that Tom) day before yesterday, and have been mucking about with it for a bit, and I gotta say: this is what I've been looking for. I've been without two things for a bit: a bass preamp, and a tube preamp. I've had my Peavey Ultra 60, but that's the other half of the rig, the dirty side. For the clean side I was using an ART DST-4 into my poweramp. It's a guitar preamp/effects processor. The problem is, of course, it's bass shy unless you set into bypass mode (which was cold, and a little digital). Which meant jacking it up on the bass' preamp, which in turn would overdrive the preamp input, and things would go downhill from there. So, I was contemplating an EQ to run after the ART, to beef up the low end, but when Tom had this up for sale, it just screamed "buy me." I did. Now, the neat bit about this is that it can be bypassed or boosted from the front pannel, and since it's a bass unit, the low end response is nice and clean all the way down to my open B. It's also tube, and I didn't realize how much I missed having a tube preamp. So, I run my bass into the ART into the Blue Tube, and it indeed beefs up the sound, and increases the low end; upshot is, I can use the ART for a distortion unit now, and with the Blue Tube's tube, and low end, it screams. Awsome for that industrial wall of noise with the ART, or a fat clean sound by itself. And, since it's bypassable, I can take it (and the ART) out of the loop, and send my bass straight to the power amp for running my DOD 250 (a third option, h00p!), which sounds good on it's own, but doesn't seem to like playing with others. It (the Blue Tube) can add some grit, but when it overdrives...well, I'm not a fan, Just some tube snarl, or clean, it rocks my small, self-centered universe. The Blue Tube has all the connectivity I could ask for, and a sturdy chassis, so I'm happy with it. It's the sound I hear in my head, straight and true. I might have to get another one of these for backup. Highly advisable. Note- I had an Ampeg SVP-Pro before this. Why sell a perfectly good tube preamp, only to get another, later? The Ampeg, aside from being a glorified DI for my purposes, lacked a couple features, like the bypass option, and even with the gain set low, liked to make my B string overdrive far before my other strings, which made for an uneven tone. Also, the Blue Tube was cheaper; I got a guitar a while back, and the Blue tube, and I'm still ahead $50. -er, is this like basses, and it doesn't exist unless I have pictures?