Audio Research PH3 (판매완료) > 전문장터

Audio Research PH3 (오디오리서치 포노앰프)

오디오 리서치 PH3 포노앰프 입니다.
6922 3개를 사용하는 동사의 대표적인 포노앰프로 큰 스케일감과 진공관 방식 특유의 섬세함,적절한 해상력을 아우르는 실력으로 많은 사용자를 지닌 대표적인 제품 입니다.
암페렉스 버글보이 트리플 매치 관으로 진공관 업글 되어 있으며,간단한 저항 연결만으로 입력 임피던스는 30, 60, 100, 200, 800 으로 조절이 가능 합니다.
원박스,메뉴얼 보관중 이며 상태 아주 좋으며 전원은 117V 사용 제품 입니다.
전국 택배 가능 하며 판매가는 *** 만원 입니다.

pws4500@naver.com
Music Note (062-222-5535 / 010-7751-1006)


[PH3 Stereo Phono Preamplifier]
The PH3 is a phono preamplification stage intended for use with an active line-level stereo preamplifier. Fully single-ended from input to output, the PH3 uses a combination of J-FET input stage technology (for low inherent circuit noise) and class A operation vacuum-tube gain via three 6922 twin triodes. Total gain of the PH3 is 54 dB (non-adjustable). Used with typical line preamplifiers having 12 to 18 dB of gain, the PH3 is suitable for phono cartridges having .25 mV output or higher. Input impedance is factory-set at 47K ohms, and input capacitance at 90 pF. For optimal matching to moving-coil and moving-magnet phono cartridges, both input impedance and input capacitance may be adjusted via simple resistor and capacitor changes.

A resistor kit (with solder) is supplied for proper loading values between 30 and 800 ohms. Additional resistor values and capacitors may be ordered from the factory. On the rear panel, the PH3 provides one pair of gold-plated, audiophile-grade single-ended connectors for L & R inputs, and one pair for outputs. High-quality single-ended interconnects such as Audio Research Litz Link 2 brand are strongly recommended for best sonic performance with the PH3.

Control Functions: Power On/Off, Mute/Operate.
Inputs: One pair SE.
Outputs: One pair SE.
PH3 / PH3 SE Specifications:
DISTORTION: Less than .005% at .50V RMS 1kHz output.
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.)
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%.
NOISE: 0.1uV equivalent input noise, IHF weighted, shorted input (80 dB below 1mV 1kHz input).
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 5.25" (13.4 cm) H (standard rack panel) x 10.25" (26 cm) D. Handles extend 1.50" (3.8 cm) forward of front panel. Rear chassis fittings extend .75" (2.2 cm).
WEIGHT: 10 lbs. (4.5 kg) Net; 19 lbs. (8.6 kg) Shipping.