T. C. Electronic M-300 Dual Engine Processor. Single space rack unit. 15 great stereo reverbs plus 15 separate effects including de-esser, compressor, delay with 5 second tap facility, tremolo, flanger etc. 1/4" jack ins and outs, digital in and out, midi in and out. Need a top quality unit for vocal reinforcement, or just tired of the shitty built in effects that came with your desk. The M-300 delivers and is cheap as chips for a T.C. Electronics rack. Local list of $695. Excellent condition, without the shipping box.