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The Listen Four is a four channel stereo mixer with line, modular, and headphone outputs. Two mono channels
with Pan knobs and two stereo channels with dual inputs provide optimal compatibility with both stereo and mono
signals. The Listen Four can be daisy-chained to other Listen modules to create a larger mixer with sub-mix
outputs. Listen Four features include:
• Four input channels (two with stereo inputs, two with mono inputs and a
• Headphone and main 1/8" outputs, each with separate
• Line level output driver with zero impedance, capable of driving long cables
• Output can be switched between line and modular level
• Low noise, cross-talk, and bleed-through
• Anti-pop feature that silences pops and thumps when the power is turned on
• Headers in back allow for connecting to other
mixer with 8, 12, 16, or more channels and multiple sub-mix outputs
• Connects via headers to WAV Recorder module for recording final mix without using patch cables
• Signal lights for each channel and output mix
• Clipping lights with adjustable level
Listen Four
4ms Company
User Manual 1.0 – Dec 31, 2018
1
Pan 1
2
Pan 2
L
R
3
L
R
4
LISTEN FOUR
Level
Listen Four
Level 1
Level 2
Level 3
Level 4
Pan
knob)
knob
Listen Four Quarters
or
modules to create a
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Summary of Contents for 4ms Company Listen Four
- Page 1 Level 4 LISTEN FOUR The Listen Four is a four channel stereo mixer with line, modular, and headphone outputs. Two mono channels with Pan knobs and two stereo channels with dual inputs provide optimal compatibility with both stereo and mono signals.
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Page 2: Table Of Contents
Table of Contents Setting up your Listen Four ................... Inputs ........................Main Outputs ......................Headphones Output ....................Trim Pot (Clipping Light Level) ................INS Header ......................OUTS Header ......................Daisy-chaining ....................... Anti-pop circuitry ....................Electrical and Mechanical Specifications .............. Page... -
Page 3: Setting Up Your Listen Four
Setting up your Listen Four 1. Power off your Eurorack system. 2. Connect the free end of the included power cable to a 16-pin Eurorack power header on your power supply distribution system. The red stripe should match the white line or -12V marking on the power distribution board. -
Page 4: Headphones Output
(+/-12V). When set at softer volumes. to Line, line level signals are output. To protect your speakers, power off the Listen Four or disconnect the speakers before flipping this switch. Headphones Output Headphones Jack The headphones jack is a stereo 1/8”... -
Page 5: Ins Header
You can continue to connect more modules in the same way, A suitable connecting cable can be purchased from 4ms Company or many of our dealers. You also can find or create your own cable. The cable must fit a single row of three pins with a pin spacing of 0.1” (2.54mm). The pins are 0.2”... - Page 6 This is WAV Recorder useful for making a recording of the main mix. Since the can accept line or modular level signals, Listen Four Input Gain WAV Recorder ’s switch can be set to either Line or Mod. The...
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Page 7: Anti-Pop Circuitry
Anti-pop circuitry Listen Four has a special feature that prevents the main outputs from popping or thumping when the power is turned on. This avoids a common problem that happens when the power is accidentally turned off and back on again while connected to a PA or powered speaker system, or the power is turned on after the speakers are turned on.