Works with all line drive preamplifiers RIAA curve accurate to 0.25 dB Ultra-low distortion Switchable gain for moving magnet or moving coil cartridges Exclusive AC polarity switch to eliminate hum Ultra high-speed, low-noise opamps Audiophile grade resistors and capacitors Gold-plated RCA input and output jacks Unique half-rack width chassis, 1 rack space high Rack mount kit sold separately (click to view) Gain at 1 kHz : MM, 46dB, MC, 61 dB Input Sensitivity at 1 kHz : MM, 5 mV in for 1.1 V output MC, . 9 mV in for 1.1 V output Input Impedance : MM, 47 k MC, 100 Input overload: MM, 200 mV, MC, 36 mV Input Capacitance 150 pF RIAA accuracy: 0.25 dB, 20 Hz - 20 kHz S/N ratio: MM, 84 dB MC, 58 dB Power requirement: 115 V - 230 V, 60/50 Hz, 5 W Dimensions: 8-1/2 w x 1-3/4 h x 10 d, 2 h with feet Net weight: 4 lbs.