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6
Big Knob Passive Monitor Controller
Big Knob Passive Monitor Controller
Front Panel Description
The front panel is where the magic happens!
Once all of the connections on the rear panel have
been made, there are several switches and a level
control that you may use, manipulate and set to your
heart’s content. Please read on...
4. Source Select Switch
Engage / disengage the switch to select the source
input. Leave this switch disengaged – up position – to
select input source A. Press this switch – down position
– to select input source B.
5. Monitor Select Switch
Engage / disengage the switch to select the monitor
output. Leave this switch disengaged – up position – to
route the currently selected input source to the monitor
A output jacks. Press this switch – down position – to
route the currently selected input source to the monitor
B output jacks.
6. Mono Switch
Mono is short for mononucleosis. It is an infection
that typically leads to a feeling of tiredness, although
one could also get headaches, a sore throat, swollen
glands and more. Thankfully, engaging the mono switch
here does not produce the infection. Rather, the mono
here is short for monophonic.
Pressing the mono switch combines the stereo
signal into a monophonic signal at the monitor outputs.
The left and right input signals are summed and the
mono signal is output at both the left and right outputs.
This allows you to check for phase problems in the
stereo signal when played over a monophonic system.
DIMMONO
MUTE
4 5
7
9
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7. Mute Switch
The mute switch does just what it sounds like it
does. It turns off the signal by “routing” it into oblivion.
Engaging the mute switch (almost) provides the same
result as turning the volume knob all the way down.
8. Dim Switch
Pressing this button turns down the signal going
to the monitor outputs by 20 dB. This allows you to
essentially “turn down” the speakers to converse
without affecting the speaker level.
9. Volume Knob [aka Big Knob]
Last, but certainly not least, the money maker!
The volume knob – aka Big Knob – adjusts the
volume of the selected input source’s signal going
to the selected monitor outputs. The volume knob
ranges from OFF (∞) to unity gain (MAX).
WARNING: Always turn the volume
knob all the way down before making
connections or trying something new.
Keep it down until all changes have been
made, then turn it up slowly. This saves your speakers –
and more importantly, your ears – from blowing.
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