Audio Research REF Phono 10 in very good condition with boxes, manuals and remote controller. S P E C I F I C A T I O N S Tube complement 8 - 6H30 dual triodes, plus 2 – 6550WE and 2 - 6H30 in power supply Dimensions Width: 19” (48 cm) Height: 7” (17.8 cm) (standard rack panel) Depth: 15.5” (39.4 cm) Handles extend 1.5” (3.8 cm) forward of the front panel Weight Audio Chassis: 22 lbs. (10 kg) Net; 34 lbs. (15.5 kg) Shipping. Power Supply Chassis: 35 lbs. (15.9 kg) Net; 43 lbs. (19.5 kg) Shipping Frequency response ± .2dB of RIAA, 10Hz to 60kHz; 3dB points below 0.3Hz and above 300k Gain Selectable 51dB (Low), 74dB (High) at1kHz BAL; 45dB (Low), 68dB (High) at1kHz SE. (MC & MM compatible) Noise 0.22uV equivalent input noise, IHF weighted, shorted (Low Gain) input (73 dB below 1mV 1kHz input). 0.055uV equivalent input noise (High Gain) (65dB below 0.1mV 1kHz input Input impedance 47K ohms and 100pF SE. Selectable loads: 1000, 500, 200, 100, 50 ohms and Custom Distortion Less than .002% at 1.0V RMS 1kHz output