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. The other end of the power cable is
a 10-pin connector which should already be connected to the
Listen Four
with the
red stripe on the power cable orientated towards the bottom of the module.
Note:
The
Listen Four
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
to the rails of your case.
4. Power on your Eurorack system.
Inputs
The
Listen Four
has four input channels on the front. A fifth stereo channel can be accessed
through a header on the back.
Level Knobs
All four channels have a
Level
knob. This knob sets the volume which will appear on the
outputs. The
Listen Four
is very quiet, so turning the knob all the way down will completely
mute the channel (over -100dB of attenuation, typically).
Channel Signal Lights
All four channels have a signal light which gets brighter as the signal gets louder. The color of
the light indicates the stereo content: blue displays the signal on the left channel, and green
displays the signal on the right channel. The signal light shows the signal post-fader (after the
Level
knob). These lights are useful for determining which channels are active at any given
moment. However, they should not be used as precision indicators. For example, the green
lights will appear dimmer than the blue lights at low audio levels and brighter than the blue
lights at louder levels.
Channels 1 and 2: Panning
Channels 1 and 2 each have one input jack and a
Pan
knob. These channels accept a mono
signal. Turning the
Pan
knob to the left or right will place the signal in the stereo field by
fading it between the left and right outputs. The
Pan
knob has a small detent in the center
position so you can find the center by feel.
The panning curve has been carefully designed to achieve the perception of a 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 left and right outputs.
Channel 5: INS header
See
INS header
section below
Main Outputs
Main Level Knob
The
Main Level
knob controls the volume of the main left and right output jacks. When knob
is turned fully to the left, the outputs are muted. Turning the knob the to right increases the
volume. The maximum volume depends on the setting of the
Mod/Line
switch.
Page of
3
7
Level 1
Level 1
Pan 1
1
L R
Level 3
3
