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13
Guided Tour -
MIXPAD 4 Channels
1: Mic inputs - Provided in monophonic channels only (channels 1 and
2). Use these electronically balanced XLR jacks to connect microphones
to either of the MIXPAD 4’s two monophonic channels. These are
intended to accept signal from low-level, low-impedance mics but can
also be used for signal from other sources (such as direct injection
boxes) if the channel’s Trim control is turned down (see #2 below).
When the channel’s Phantom Power switch is pressed in (see #2 on
page 16), 18 volts of phantom power is delivered to pins 2 and 3 of that
channel’s XLR mic input, enabling you to connect most condenser
microphones. WARNING: Do not connect a channel’s microphone
input if you already have something connected to its line input; each
channel is designed to accept only one source or the other.
2: Trim - Provided in monophonic channels only (channels 1 and 2).
This knob determines the input level of the connected mic or line signal.
Continuously adjustable from -6 dB to -50 dB, the input trim is at unity
gain (no boost or cut) when set to the “0” (9 o’clock) position. The input
signal is boosted when the trim is turned to the right of “0” and
attenuated when turned to the left of “0.” For information on how to
properly set this for each channel, see the section on page 23 in this
manual entitled “Setting The Correct Gain Structure.”
3: Line inputs - Use these 1/4" jacks to connect line-level sources such
as synthesizers, drum machines, CD players, tape decks, or effects
processors to any of the MIXPAD’s mono or stereo channels. The line
input jacks for monophonic channels (channels 1 - 2) are electronically
balanced, so you should use balanced three-conductor cabling and
Tip/Ring/Sleeve (TRS) plugs wherever possible (unbalanced two-
conductor plugs can also be inserted into these inputs, but you’ll get
better signal quality and less outside noise and hum if you use balanced
lines). WARNING: Do not connect a channel’s line input if you already
have something connected to its microphone input; each channel is
designed to accept only one source or the other.
The line input jack for the stereo channel (channels 3 - 4) accepts a
single unbalanced 1/4" TRS plug, with the tip carrying the left signal and
the ring carrying the right signal (sleeve is common ground). See the
“Connecting The MIXPAD” section on page 19 in this manual for
additional information on how best to use channel inputs.