Tascam - Mx 4 Microphone preamplifier

The Tascam (TEAC) MX-4 is a high-quality four-channel microphone preamplifier and mixer, designed specifically to meet the needs of digital recording. Thanks to individual outputs, phase switches, phantom power on each channel, and stereo master mixing functions, the MX-4 delivers a performance level that previously could only be found in microphone preamps of more expensive consoles.
Conditions:
In good cosmetic condition: some scratches on the top of the chassis and a few knob tips missing
In excellent working condition, fully cleaned and tested
Main features:
4 balanced XLR microphone inputs capable of accepting signals over a wide range of levels
Carefully selected components and a Tascam proprietary circuit based on the 5532 operational amplifier ensure excellent audio quality
Phase switches on each channel
M/S matrix switchable between channels 1 and 2
Phantom power switchable individually for each channel
High-voltage power rails provide enough headroom to deliver the dynamic range expected by modern digital recorders
Direct outputs on each channel (6.3 mm jacks, balanced/unbalanced selectable)
Stereo mix outputs: XLR balanced and 6.3 mm jacks (unbalanced)
Stereo SUB inputs allow cascading with a second MX-4 or with an external mixer
Ground lift switch
1U rack-mountable chassis
Specifications:
Frequency response: 20 Hz – 30 kHz (+0 dB, -1 dB; from all inputs to all outputs)
Input equivalent noise: -129 dB (DIN weighting, maximum gain, source 150 Ω)
Noise figure: 80 dB
Total harmonic distortion: 0.008% (1 kHz, 30 kHz low-pass filter)
Crosstalk attenuation: >80 dB (direct output at 1 kHz, source 150 Ω, IHF-A weighting)
Microphone inputs: 4 x XLR, balanced
Maximum input level: -68 dBm to +2 dBm
Direct outputs: 4 x 6.3 mm stereo jacks (balanced/unbalanced switch)
Unbalanced mix outputs: 2 x 6.3 mm jacks
Balanced mix outputs: 2 x XLR
Stereo SUB input: 2 x 6.3 mm jacks
Power supply: 230 V AC, 50 Hz
Dimensions: 482 (W) x 48* (H) x 204 (D) mm (*feet included)