What are the specs for the Audio Research PH1?

Frequency Response:

±.25dB of RIAA, 10Hz to 60kHz. 3dB points below 0.5Hz and above 150kHz

Distortion:

Less than .005% at .25V RMS 1kHz output

Noise & Hum:

0.12µV equivalent input noise, IHF weighted, shorted input (78dB below 1mV input)

Gain:

48dB at 1kHz (MC and MM compatible)

Input Impedance:

47K ohms (Provisions for any value below 47K ohms or added input capacitance for matching certain magnetic cartridges)

Output Impedance:

350 ohms. Recommended load 50K-100K ohms and 100pF. (10K ohms minimum and 2000pF maximum)

Output Polarity:

-

Maximum Inputs :

160mV RMS at 1kHz (800mV RMS at 10kHz)

Rated Outputs :

.25V RMS 10Hz to 60kHz, 100K ohm load (output capability is 50V RMS output at ½% THD at 1kHz)

Power Supplies:

Electronically-regulated low and high voltage supplies and electronic decoupling. Shielded toroid transformer. Line level regulation better than .01%

Power Requirements:

100-135VAC 60Hz (200-270VAC 50/60Hz) 35 Watts

Other:

Switches (2): Power, Mute

Dimensions:

19" (48 cm) W x 5¼" (13.4 cm) H (standard rack panel) x 10¼" (26 cm) D. Handles extend 1 ⅝" (4.1 cm) forward of front panel. Rear chassis fittings extend ⅞" (2.3 cm)

Weight:

10 lbs. (4.5 kg) Net; 19 lbs. (8.6 kg) Shipping