Frequency response - High level section: ±.25dB, 5Hz to 30kHz. -3dB points below 1 Hz and above 100kHz Magnetic phono: ±.25dB of RIAA from 30Hz to 40kHz.
Distortion (THD) - Harmonic distortion: Less than .01% at 2V RMS output, 20Hz to 20kHz (typically
about .0005% in midband). Intermodulation distortion: Less than .002% at 2V RMS output.
| Noise & hum |
High level:
(1) 250 µv RMS maximum residual unweighted wide-band noise at main
output with gain control minimum (86dB below 5V RMS output).
(2) More than 90dB below 1V RMS input (less than 20 µV equivalent
input noise).
|
|---|
| |
Magnetic phono: 5 µV equivalent
input noise, wideband RMS (-66dB reference 10mV input). |
| Gain |
Magnetic phono input to tape
output, 34dB. |
| |
Magnetic phono input to main
output, 60dB. |
| |
High level inputs to tape output,
0dB. |
| |
High level inputs to main output,
26dB. |
| Input impedance |
50 kOhms, all inputs. (Magnetic
phono may have any value from 10 ohms to 100 kOhms substituted. Also has
provision to add input capacitance for matching certain magnetic cartridges.)
|
Output impedance - Less than 500 ohms main
output, 1000 ohms tape output. Recommended minimum load for maximum audio
quality, 50 kOhms and 250 pF maximum capacitance.
Maximum inputs - Magnetic phono, 500 mV at 1kHz (1.5V RMS, 10 kHz). High level inputs essentially overload proof.
Rated Outputs - 2V RMS 5Hz to 30kHz,
all outputs, 60 ohm load. (Main output capability is 60V RMS output at .5%
THD at 1kHz into a 500 kOhm load with 3V RMS high level input.)
Power supplies - 4 electronically-regulated
solid-state supplies. Frequency-compensated high voltage supplies have a
total equivalent low frequency stability of greater than 3 farads of capacitance.
Line regulation better than .001%.
Tube complement - (2) 12AX7 LN, (4) 12AX7
Power Requirements - 100-120/190-240 VAC,
50/60 Hz, 35 watts.
| Dimensions |
19" (48 cm) W x 5 1/4" (13.4
cm) H (standard rack panel) x 10 1/4" (26 cm) D. Handles extend 1 5/8" (4.1
cm) forward of front panel. Rear chassis fittings extend 7/8" (2.3 cm). |
|---|
| Weight |
22 lbs. (10 kg) Net, 30 lbs.
(13.75 kg) |
