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Table of Contents 

Setting up your Listen Four Quarters 

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. The other end of the power cable is 

a 10-pin connector which should already be connected to the 

Listen Four

 

Quarters 

with the red stripe on the power cable orientated towards the bottom of the module. 

Note: The 

Listen Four 

Quarters

 is reverse-polarity protected, but incorrectly 

connecting any module can damage any other on the power bus. 

3. Using the included screws, securely attach the 

Listen Four 

Quarters

 to the rails of 

your case.  

4. Power on your Eurorack system. 

Setting up your Listen Four Quarters

 

2

....................................................................

Inputs

 

3

.....................................................................................................................

Main Outputs

 

3

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Stereo TRS/Balanced Switch

 

4

................................................................................

Headphones Output

 

4

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INS Header

 

5

............................................................................................................

OUTS Header

 

5

.........................................................................................................

Daisy-chaining

 

5

.......................................................................................................

Anti-pop circuitry

 

7

...................................................................................................

Electrical and Mechanical Specifications

 

7

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Summary of Contents for Listen Four Quarters

Page 1: ...th mono inputs and a Pan knob Headphone and main 1 4 outputs each with separate Level knob Balanced TRS outputs switchable to stereo Line level output driver with zero impedance capable of driving long cables 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 Listen Four or Listen Four Quar...

Page 2: ...e Listen Four Quarters with the red stripe on the power cable orientated towards the bottom of the module Note The Listen Four Quarters is reverse polarity protected but incorrectly connecting any module can damage any other on the power bus 3 Using the included screws securely attach the Listen Four Quarters to the rails of your case 4 Power on your Eurorack system Setting up your Listen Four Qua...

Page 3: ...sound source being a consistent distance from the listener as it pans around Channels 3 and 4 Stereo inputs Channels 3 and 4 each have left and right input jacks Patching a stereo signal into these jacks will accurately maintain the stereo image as the signal is mixed into the outputs If you patch a mono signal into the left jack and nothing into the right jack the mono signal will appear on both ...

Page 4: ...ck while the switch is flipped to Stereo TRS the right channel will be grounded and muted This means the right jack will no longer output properly Therefore flip the switch to Balanced if you are using mono cables Besides this potential grounding of the right signal via a mono cable in the left jack no change to the right jack happens when the switch is flipped to either position the right jack al...

Page 5: ... the two Listen Fours in the example above will create a 12 channel mixer with 1 4 balanced outputs and two sub mix outputs You can also connect a WAV Recorder module to the end of a chain of Listen modules allowing you to record the main outputs without using patch cables How to Daisy chain To daisy chain two modules use a 3 pin cable to connect the OUTS header of one module to the INS header of ...

Page 6: ...ten Fours and a WAV Recorder are daisy chained by connecting the OUTS to INS headers This creates an eight channel mixer with a stereo recording of the main mix The photo on the right shows a twelve channel mixer with stereo recording of the main mix Patching into any of the twelve channels will pass the signal to the 1 4 outputs as well as the WAV Recorder No cables need to be patched between mod...

Page 7: ...els 1 and 2 4 4dB hard panned 9 1dB center panned Maximum gain of channels 3 and 4 and INS header 7 5dB Channel bleed through Main Level attenuation Test conditions Test signal input into each channel with Level knob at 100 Frequencies from 20Hz to 20kHz tested Result given as a ratio of the signal measured on main output jacks with Main Level knob at 0 to the signal measured with Main Level knob ...

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