Works! :) It is used, but in great condition for its age. I had the AC Power Cable about a month ago, but I somehow misplaced it, so that is not included in the sale. Also included in the sale is a Parasound ACM-2500 Calibration Mic. It was recently removed from an in-home theater and is in great working condition. Made in the USA. FEATURES Designed by John Curl THX certified by Lucasfilm Ltd. Independent power supplies for each channel Modular circuit board layout Massive encapsulated 2 kVA toroid power transformer 30,000 uF power supply capacitance for each channel Multiple polystyrene film bypass capacitors in power supply Can be triggered on with an external DC source Cascode Class A input stages with matched J-FET pairs Hand-picked complementary transistors in high voltage driver stage 8 complementary pairs of 15 ampere 60 MHz output transistors per channel Output transistors direct-coupled to speakers without LRC networks DC servo direct-coupled audio circuits with 0.8 Hz rolloff High-bias Class A/AB operation Gold-plated metal structure RCA input jacks Multiple protection circuits, temperature sensors and silver-cadmium relay protection Glass epoxy circuit boards, double-sided for precision Hand made audiophile-grade AC power cord SPECIFICATIONS Continuous Power Output - Each Channel:      220 watts RMS x 5, 20 Hz - 20 kHz,      8 Ω, all channels driven; 300 watts RMS x 5, 20 Hz - 20 kHz,      4 Ω, all channels driven Current Capacity:     60 amperes peak per channel Slew Rate:     130 V/second Power Bandwith:      5 Hz - 100 kHz, +0/-3 dB at 1 watt Total Harmonic Distortion:     < 0.03 % at full power IM Distortion:     < 0.03 % TIM:     unmeasurable Dynamic Headroom:     > 1.5 dB