[Picto]

Some Reference 6 specifications too:

Frequency Response: +0-3dB, 0.5Hz to 200kHz at rated output (Balanced, 200k ohms load).
Distortion: Less than .01% at 2V RMS BAL output.
Gain: Main output: 12dB Balanced output, 6dB SE output.
Record out: 0dB (Processor input: 0dB SE output).
Input Impedance: 120K ohms Balanced, 60K ohms SE. Inputs 4 balanced, 4 single-ended. Assignable processor passthrough.
Output Impedance: 600 ohms Balanced, 300 ohms SE Main (2). 20K ohms minimum load and 2000pF maximum capacitance. Outputs (3): 2 main, 1 record out (XLR and RCA connectors).
Output Polarity: Non-inverting.
Maximum Input: 20V RMS BAL, 10V RMS SE.
Rated Outputs: 2V RMS (1V RMS SE) into 200K ohm bal- anced load (maximum balanced output capability is 30V RMS at less than 0.5% THD at 1kHz).
Crosstalk: -80dB or better at 1kHz and 10 kHz.
Controls: Rotary encoders: Volume (103 steps), Select Input. Push Buttons: Power, Proc, Menu, Enter, Mono, Invert, Mute.
Power Supplies: Electronically regulated low and high voltage supplies. Automatic 45 sec. warm-up/brown-out mute. Line regulation better than .01%.
Noise: 1.7uV RMS residual IHF weighted balanced equiv- alent input noise with volume at 1 (109dB below 2V RMS output.)
Tube Complement: (6)-6H30P dual triodes, plus (1 each) 6550C and 6H30P in power supply.
Power Requirements: 100-135VAC 60Hz (200-270VAC 50/60Hz) 130 watts. Standby: 2 watts.
Dimensions:
Width Height Depth
19” (48 cm) 7.8” (19.8 cm) 16.5” (41.9 cm)
Handles extend 1.6” (4 cm) forward of the front panel.
Weight: 36.5 lbs. (16.6 kg) Net; 53 lbs. (24 kg) Shipping.

Bertrand