RDL RU-MLD4T 1x4 Mic/Line Distribution Amplifier w/ Transformer & Rackmount Kit

This listing is for a single RDL RU-MDL4T 1-input, 4-output transformer isolated mic/line distribution amp. At the time of listing, there are four (4) available.
Each amp includes phoenix connectors and a 1RU rackmount kit (that can hold three modules). (All the phoenix connectors are the same, even though the pics have one of them being different)
Amps do not include power supplies, but are compatible with aftermarket 24v psu\'s.
Units have all been tested and work correctly. They all have minor cosmetic blemishes like scratches, but are otherwise in good condition.
One unit is missing the cap on the volume knob. That will be the last one I sell (so if you see only 1 left, that\'ll be yours).
From RDL:

The RU-MLD4 is a four channel audio distribution amplifier. The input and all four outputs may be connected through the front-panel XLR jacks or on the rear panel detachable terminal blocks. The input accepts either a balanced microphone or line level signal. Each of the four outputs provides either a microphone or line level signal. Both the front-panel XLR connectors and the rear-panel terminals are active at all times.

The audio input is equipped with a rear-panel switch to select between MIC and LINE level. Two additional switches allow setting the MIC input for LO or HI gain and for enabling or disabling standard 24 Vdc phantom. The two microphone gain settings allow the connection of a wide variety of dynamic and condenser microphones. Each output is provided with a separate rear-panel switch to set the associated level to either MIC or LINE. Audio outputs are isolated from each other and may be wired balanced or unbalanced. Gain trim is provided on a front-panel control. An RDL Dual-led VU meter is provided above the gain trimmer. The meter is calibrated to indicate +4 dBu for outputs set to line level. The rear panel provides a detachable terminal block and a power input jack to connect 24 Vdc power. Each output of the RU-MLD4T is equipped with a studio-quality audio output transformer.

Inputs:XLR(front); detachable term block(rear)Input level (for +4 dBu output):Switch-selectable (rear panel) MIC/LINEMic:-48 dBu to -3 dBu (LO GAIN); -65 dBu to -20 dBu (HI GAIN)Line:-15 dBu to +28 dBu
Input Impedance:Mic:2 kΩ balanced, switchable 24 V phantom (IEC 61938: 2013)Line:> 10 kΩ balanced; may be connected unbalancedOutputs (4):XLR(front); detachable term block(rear)Output level:Switch-selectable (rear panel) MIC/LINEOutput Impedance:150 Ω balancedGain Trim:Front panel adjustableMic:Off to 52 dB gain (LO GAIN); Off to 69 dB gain (HI GAIN)Line:Off to 20 dB gain
Frequency Response:Mic:80 Hz to 50 kHz (± 0.75 dB); < 10 dB @ 20 Hz (integral high-pass filter)Line:15 Hz to 50 kHz (± 0.1 dB)THD+N:< 0.1% (Mic); < 0.005% (Line)CMRR:> 60 dB (Mic); > 50 dB (Line)
Residual Noise (below +4 dBu LINE output or -45 dBu MIC output):Mic:-79 dB (50dB Gain); -70 dB (Mic 60dB Gain)Line:-85 dBHeadroom:> 20 dB (above +4 dBu LINE output)Ambient Operating Environment:0° C to 55° CPower Requirement:GROUND-REFERENCED, 24 Vdc @ 90 mA