Having purchased a mesa400+ has made my rackmounted biamp gear obsolete...all items in excellent used shape. Amp: Carver pt1250.....$350 These typically go for $550-600 here: http://www.hticsproaudio.com/used pro audio - amplifiers for sale_1.html Some specs: 8 ohms stereo 465 watts 4 oms stereo 625 watts 4 ohms parallel mono 1000 watts weight only 10 lbs! Switching power supply is small, cool, efficient. Has two speed fan anyway.This is a tough, clean, high power magnetic field unit. Two rack spaces. Note that mono mode requires internal jumpers to be moved and resoldered:$50 at the factory, $30 at your local competent bench tech, free if you're handy with a soldering iron. I have the original owners manual, 1990 model I believe. Preamp: Peavey ProBass 1000.....$125 Nice flexable preamp with EQ 9-Band Graphic, 2 EQ boost buttons (Hi, Low) Effects Rear Panel effects loop Controls Pre & Post Gain Knobs, x-over frequency, Hi/Low Balance Control, Auxilary Input Control, Headphone Control Other Built In XLR & 1/4" DI's, Bi-amp (Lo & Hi) Outs, Full Range out, Auxillary In, Headphone out, Rear Panel adjustment for overload LED, input pad Dimensions 1 Rack space (1 3/4" h x 19" w x 10" d) Digitech 3.6...$50 delay, flange, chorus, echo, 1 rack space.