I've had mine for a while now, and thought I'd post a review. This thing is an absolute monster - 500w@8ohms, 800w@4ohms, 4 band semi-parametric EQ, built in tuner, all the bells and whistles, and it weighs in at only 19 lbs. It took a while for me to get the hang of using the preamp stage, but once I got that figured out, I found myself in possesion of the cleanest and most powerful DB amp I've ever laid hands on. (ALL HAIL) Bob Gollihur also was able to hook me up with the perfect rack case for it which fits it perfectly with no wasted space, so it even looks like a jazz amp. What's great about this unit is the headroom. I love my Clarus, but it tends to poop out when you push it too hard, and works best with an extremely efficient speaker like the CXL-112 if you want any volume at all. With the iamp, I can use a less efficient but more transparent speaker like the VL208 and still have plenty of headroom left over for more clean volume if I want it. One example of how it has simplified my setup is the bi-weekly gig I play with Java Men (my original group). The room is very loud and acoustically strange, the people can be very loud, and there's mechanical noise from the fan in the kitchen. Needless to say, this is not a place you want to play at super low volumes. With the Clarus, I had to take two speaker cabinets to get enough clean sound to make the gig happen, which together with a DB, a 6 string Slab, a stool, and a dolly, was a hell of a lot of stuff to try to cram in a Civic hatchback. With the iamp, I can take only one cabinet and still get bigger and cleaner sound than before, and still have gas in the tank if I need it. This thing is kinda pricey, but so far worth every penny. Highly recommended for DB, and it kicks a fair amount of posterior for Plank, too.