I couldn't resist hooking my GK MB200 head up to an analyzer. The amp has the characteristic "scooped" voicing of GK heads, which I consider to be problematic for DB. On the other hand, I discovered that the MB200 can be dialed to within a dB of flat with the following settings: Contour = Off Treble = 10:00 Hi Mid = 2:00 Low Mid = 1:00 Bass = 10:00 This still gives all of the controls plenty of adjustment range in both directions. Has anybody else noticed the "fit and finish" of this amp? The parts of the enclosure are nice thick sheet aluminum, with a nubbly surface that will hide scratches. They fit together tightly. All of the screws go into threaded steel inserts -- a classy touch.