PASS LABS ALEPH 0s stereo amp from the early 1990s.works perfectly fine and sounds beautiful!100% pure class A power!!! VG condition but 4 fins bent on rear right corner. not noticeable when looking at it normal from front and no affect on performance.comes with original factory double box and power cord.shipped fedex insured and signature will be required. these legendary Pass Labs Aleph amps are rare and hard to find. Performance Specifications Gain 20 dB balanced, 20 or 26 dB unbalanced Power Output 40 watts @ 8 ohms, 80 watts@ 4 ohms Output Impedance .025 ohm @ 1 KHz @ 8V @ 8 ohm Balanced Input 26 Kohm,Power Consumption 250 watts at 40 watts output/ch