主要指标：±.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.)
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
Power requirements 100-135VAC 60Hz (200-270VAC 50/60Hz) 28 watts maximum. Line
fuse 0.6A SLO BLO (0.3A SLO BLO 230V)
Other
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.
R20 RIAA MM/MC唱头放大器
增益: MM 35/41dB,MC 55dB
模拟输入: 1组RCA端子
模拟输出: 1组RCA端子
输入阻抗: 10R,20R,50R,100R,200R,47K
输出阻抗: 100欧姆
RIAA精确度: +/-0.2dB,50Hz-20kHz
讯噪比: MM -80dB,MC -75dB
耗电量: 待机<9W
尺寸(宽x深x高): 215x275x75mm
重量: 4kg
