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Input Channels 3 through 8 Rear Panel Features
Input channels 3 through 8 include the same features as channels 1 & 2, with the following exceptions. The rear panel phase
and pad switches are not included, the mid-range EQ filter is a "hi-mid" instead of a "low-mid" and there is a low-cut switch.
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BALANCED MICROPHONE INPUT Female XLR connector for terminating balanced, low
1.
impedance microphone circuits. Pin 2 is positive and +48 V DC is applied to pins 2 and 3 via a
resistive network when the front panel Phantom Power switch is ON. (See page 28.)
BALANCED LINE INPUT Female 1/4" TRS connector for terminating balanced low or high
2.
impedance line level circuits. Tip is positive, ring is negative. This circuit is wired in parallel with
the female XLR connector. Connecting to this input will not disable the XLR input connector, so
both inputs should NOT be used simultaneously.
INSERT JACK Female 1/4" TRS connector for terminating two, single-ended (unbalanced) line
3.
level circuits. The tip is a line output and carries the signal after the first gain stage (post gain).
The ring is a line input and feeds the secondary gain circuit just before the equalization stage and
LCF. Inserting a TRS male connector into this jack will break the circuit of the input channel. A
complete loop must be made to pass audio through the jack. Inserting a plug so that only the tip
makes connection will provide a line output only, but will break the connection. If a complete con-
nection is required when using this jack as a line output, it must be made by completing the loop at
the plug.
DIRECT OUT Female 1/4" TS connector for terminating a single unbalanced line level audio out-
4.
put. The signal present at this connector is after the fader and channel mute (post fader and post
mute).
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AAM
1662 User Manual
™
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