Home / Audio Research PH3 Tube Phono Preamplifier Zoom Audio Research PH3 Tube Phono Preamplifier Be the first to review this product SKU: audioresearchph3phono FREQUENCY RESPONSE ±.15dB of RIAA, 10Hz to 60kHz. 3dB points below 0.5Hz and above 400kHz. DISTORTION (THD) Less than .005% at .50V RMS 1kHz output. NOISE & HUM 0.1µV equivalent input noise, IHF weighted, shorted input (80 dB below 1mV 1kHz input). GAIN 54dB at 1kHz (MC & MM compatible). INPUT IMPEDANCE 47K ohms and 90pF Unbalanced. (Provisions for any value below 47K ohms or added input capacitance for matching certain magnetic cartridges.) OUTPUT IMPEDANCE 200 ohms Unbalanced. Recommended load 50K-100K ohms and 100pF. (10K ohms minimum and 2000pF maximum.) OUTPUT POLARITY - MAXIMUM INPUTS 60mV RMS at 1kHz (240 mV RMS at 10kHz) RATED OUTPUTS .50V RMS 10Hz to 60kHz, 100K ohm load (output capability is 30V RMS output at 1/2% THD at 1kHz). POWER SUPPLIES Electronically-regulated low and high voltage supplies. Line regulation better than .01% TUBE COMPLEMENT (3) 6922/E88CC dual triodes with JFET input. Solid state power supply. POWER REQUIREMENTS 100-135VAC 60Hz (200-270VAC 50/60Hz) 28 watts maximum. Line fuse 0.6A SLO BLO (0.3A SLO BLO 230V). DIMENSIONS 19" (48 cm) W x 5 ¼" (13.4 cm) H (standard rack panel) x 10 ¼" (26 cm) D. Handles extend 1½" (3.8 cm) forward of front panel. Rear chassis fittings extend ¾" (2.2 cm) WEIGHT PH3: 10 lbs. (4.5 kg) Net; 19 lbs. (8.6 kg) Shipping. Availability: In stock $1,225.00 Qty: Add to Cart Email to a Friend Add to Wishlist Product Description Additional Information Product Description Details Audio Research PH3 Phono Preamplifier Silver Very Good Condition Additional Information Additional Information Call For Price No CMS tab