RADIAL / MC3

This is a studio monitor selector made by RADIAL that allows you to switch between two powered speakers.

■ Circuit: Relay-switched passive stereo with active headphone and subwoofer outputs
■ Number of Channels: 2.1 (stereo, subwoofer)
■ Frequency Response: 0Hz to 20kHz (-1dB @ 20kHz)
■ Dynamic Range: 114dB
■ Noise: -108dBu (Monitor A & B outputs),
-95dBu (Subwoofer output)
■ THD+N: <0.001% @1kHz (0dBu output, 100k load)
■ Intermodulation Distortion: <0.001% 0dBu output
■ Input Impedance: 4.4kΩ Min. (balanced), 2.2kΩ Min. (unbalanced)
■ Output Impedance: Depends on LEVEL ADJUSTMENT setting
■ Maximum Headphone Output: +12dBu (100kΩ Load)
■ Dim Attenuation: -2dB to -72dB
■ Inputs: L/R Balanced/Unbalanced 1/4"" TRS
■Monitor Output: L/R Balanced/Unbalanced 1/4"" TRS
■Aux Output: Stereo Unbalanced 1/4"" TRS
■Sub Output: Mono Unbalanced 1/4"" TS
■Dimensions: 148W x 48H x 115D mm
■Weight: 0.96 kg
■Power Supply: 15VDC 400mA power adapter (center positive) included

~From the manufacturer's website~
This is a studio monitor selector that switches between two powered speakers. Being able to switch between different monitors allows you to compare various listening styles. This unit also features a headphone amplifier for listening with portable audio players. The stereo output level can be adjusted separately for each monitor. The MASTER control adjusts the overall volume. This unit is essentially a simple device that adjusts the speaker level and turns on the speaker you want to listen to.