Alesis MultiMix6FX, Reference Manual

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2 A Tour of the MultiMix
17
In this chapter, you’ll learn all about the MulitMix-6FX’s
components (except for the digital effects processor, which is
explained in the next chapter). Please refer to the diagrams as you
read each section to see which components we’re talking about.
Patchbay
At the rear portion of the top of the MultiMix-6FX, you’ll find the
patchbay. This is where you plug in instruments, signal processors,
multitrack recorders and other devices. Whatever you need to
connect to the mixer, this is where it’s done. In the following
paragraphs, we tell you all about the inputs, outputs, switches and
knobs you see in this section of the mixer.
Mic Inputs (Channels 1 – 2)
The MultiMix uses standard XLR-type mic inputs. These provide
+48V phantom power that you can turn on and off with the
Phantom On switch located on the rear of the mixer. You
probably will have to turn on the phantom power when you’re
using most condenser mics, as these usually require the extra
voltage (unless the mic has its own power source, such as a battery).
Dynamic and ribbon mics don’t require phantom power and are
unaffected when the power is on.
These high-quality mic inputs also feature up to 50dB of preamp
gain that you can adjust with the Gain knob.
Line Inputs (Channels 1 – 2)
The line inputs, marked LINE IN, are balanced 1/4” jacks that
offer the same 50dB of preamp gain provided by the mic inputs
(however, phantom power does not apply to line inputs). These
inputs accept line-level instruments such as keyboards and drum
machines. If you find that your instrument has a weak line
signal, just plug it into channels 1 – 2 and crank it up with the
Gain knob.
Line Inputs (Channels 3 – 6)
Unlike channels 1 – 2, the line inputs on channels 3 – 6 are stereo
inputs that have left and right inputs. If you’re using one of these
channels as a mono input, plug your instrument into the left input.
Channels 3 – 6 don’t have the extra gain found on channels 1 – 2
because most line-level instruments don’t require the extra boost.
MIDI and other electronic instruments will work especially well on
Although chances are your
microphones will work fine
with these mic inputs, we
recommend that you do some
checking up on the type of
microphone you’re using,
especially if it’s one of the
older vintage models. Verify
that your microphone
requires phantom power and
make sure its output is low
impedance, balanced and
floating.
Always connect your
microphones
before
activating phantom power.
Microphones tend to be very
sensitive, and the sudden
power surge can do
permanent damage to the
mic’s circuitry. It’s also a
good idea to lower mixer
levels (slide those faders
down a bit) before you
activate phantom power.