Frequency response
High level section: ±.25 dB, 1 Hz to 50kHz. -3dB points below 0.1 Hz and above 400kHz. Magnetic phono: ±.25 dB of RIAA, 10 Hz to 40 kHz.
Distortion (THD)
Harmonic distortion: Less than .002% at 2V RMS output, 20 Hz to 20 kHz (typically less than .0005% in the midband). Intermodulation distortion: Less than .002% at 2V RMS output.
Noise & hum
High level: (1) 250 µV RMS maximum residual unweighted 100 kHz bandwidth noise at main output with gain control minimum (86 dB below 5V RMS output). (2) More than 90 dB below 1V RMS input (less than 20µV equivalent input noise. Magnetic phono: 2 µV equivalent input noise, wideband RMS (-74 dB reference 10 mV input) (Less than 1 µV above 200 Hz or -80 dB reference 10 mV input).
Gain
Magnetic phono input to tape output: 28 dB. Magnetic phono input to main output: 60 dB. High level inputs to main output: 26 dB.
Input impedance
50K ohms phono, 90K ohms high level inputs. Also has provision to add to the 30pF phono input capacitance for matching certain magnetic cartridges.
Output impedance
250 ohms main output, 1200 ohms tape output. Recommended minimum load for best audio quality 600 ohms and .01µF maximum capacitance main output, 10K ohms and 200pF maximum capacitance tape output.
Output polarity
–
Maximum inputs
Magnetic phono, 500 mV at 1 kHz (2.0V RMS, 10kHz). High level inputs essentially overload proof.
Rated outputs
2V RMS 1 Hz to 50 kHz, all outputs, 10K ohm load (maximum main output capability is 14V RMS output at 1/2% THD at 1 Hz to 50 kHz into a 10K ohm load, 10V RMS at 1/2% THD at 1 Hz to 50 kHz into a 600 ohm load).
Power supplies
Four electronically-regulated tracking solid-state supplies. Line regulation better than .01%.
Power requirements
100-130 VAC 60 Hz (190-250 VAC 50 Hz) >10 Watts.
Other
Amplification: Four AM8 Analog Modules®. No coupling capacitors.
Dimensions
19″ (48 cm) W x 3 ½” (8.9 cm) H (standard rack panel) x 8 ½” (21 cm) D. Handles extend 1 ½” (3.8 cm) forward of front panel. Rear chassis fittings extend ¾” (1.9 cm).
Weight
16 lbs. (7.3 kg) Net, 20 lbs. (9.1 kg) Shipping.
