ALESIS MULTIMIX USB2.0 - Manual (Page 19)

A Tour of the MultiMix USB2.0 2
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HDPH / CTRL RM
The HDPH / CTRL RM knob controls the level of the signal
being sent to the CTRL RM OUT and the PHONES output. The
level of this signal is represented by the LED meters. The “CTRL
RM” in the name of this knob refers to the fact that it controls the
signal that typically is sent to the control room monitors of a
studio, where someone—usually an engineer—is working the
mixer. However, don’t be intimidated if you’re using this mixer in
your bedroom, which probably isn’t equipped with a control room.
In this scenario, you can use headphones or connect the CTRL
RM OUT to your speakers.
AUX RETURN A LEVEL
This is the level control for the signal returning to the mixer via
AUX RETURN A.
EFFECTS / AUX RET B LEVEL
If you are using one of the MultiMix 8 USB’s internal effects, this
knob controls the effect level. If AUX SEND B is connected to an
external device, this knob controls the level for AUX RETURN B.
LED Meters
These are the two rows of yellow, green and red lights you see in
the master section of the mixer. The LED meters allow you to
view the signal level of the main mix and 2-TRACK IN depending
on which signal you have routed to the control room mix.
POWER Indicator
When this LED is lit up, that means the POWER ON switch on
the rear of the mixer has been activated.
+48V Indicator
When this one is lit up, that means the PHANTOM ON switch on
the rear of the mixer has been activated and is supplying +48V
phantom power to all XLR mic inputs.