Technical Specs:

Inputs

(3) 3-pin LR female: microphone / line level level

Outputs

(2) 3-pin LR male: microphone / line level

Monitor/Headphone Out

1/8" (3.5mm) mini stereo output jack

ALT I/O

[RN]: 1/8" mini stereo output jack - monitor input/alternate ch. 4&5 inputs, [Tape out/Mix out]: TA3-type unbalanced

Link I/O

Tape out/Mix out is also used to link to the Mix In of a 442 or 302

Impedance

[Inputs]:
2.5k ohms (actual)/XLR/mic setting/< 500 ohm Mics,
16k ohms (actual)/XLR/line setting/< 2k ohm outputs.
[Outputs]:
150 ohms (actual)/XLR factory Line setting/> = 600 ohm mics,
150 ohms (actual)/mic (lowest) setting/< 2k ohm outputs.

Gain

[XLR Inputs]:
(75dB, mic / 35dB, line - XLR output @ factory (line) setting),
(0-16dB 2dB steps, mic / 40-56dB 2dB steps, line - XLR output attenuated)

Hum & Noise

EIN: -126dBu (-128 BV) max (22Hz - 22kHz bandwidth , flat filter, trim control fully up)

Frequency Response

20Hz - 30kHz, +0.2, -0.5dB, -1dB @ 5Hz and 50kHz typical

Distortion

THD + Noise: 0.007% typical (1kHz, +4dBu at Line Out) 0.009 max (50Hz to 20kHz, +18dBu at Line out, fader fully up)

Metering

Stereo (L/R) 20 segment, sunlight viewable LED meters

Control Voltage

No

Phantom Power

12V, 12V-T & 48V

Power

130mA @ 4.5V, internal batteries, idle, no phantom.
55mA @ 12V external DC, idle, no phantom.

Dimensions (WxHxD)

8.4 x 1.8 x 4.5" (214 x 47 x 114mm)

Weight

1.8 lbs (0.85kg) unpackaged with three alkaline AA batteries