STANDARD CHANNELS
[CHANNELS 1 — 20 (AAM
™
2443) AND 1 — 28 (AAM 3243)]
REAR PANEL CONNECTIONS
(1)
INSERT
This jack is a 1/4" Tip/Ring/Sleeve (TRS)
connection that allows a pre-EQ, pre-fader
signal to be taken from and returned to the
channel. Insert jacks are often used to route
an input signal to an external signal processor.
The on-board compressors can be patched to
any channel with an INSERT.
(2) LINE
This jack is a 1/4" balanced (TRS) high-
impedance input for high level signals. The tip
is the positive input, which should also be
used for unbalanced inputs. This input is
connected through a 20 dB pad to the MIC
input (3). The two inputs cannot be used
simultaneously.
(3)
MIC
This jack is a balanced XLR (3-pin) low-
impedance connection intended for
microphones. Other low-impedance signals
such as instruments sent to the console via
direct boxes will also utilize these inputs.
CHANNEL STRIP CONTROLS
(4) GAIN
This control varies the input gain of the channel to provide a wider dynamic range. The
adjustment range is +10 dB to +58 dB for the XLR input and –10 dB to +38 dB for the line
input. Proper adjustment of input gain maximizes signal-to-noise ratio. Optimum gain setting
can be achieved by depressing the PFL switch (15) and adjusting the GAIN control until the
signal occasionally illuminates the 0 dB LED in the AFL/PFL display (45).
(5) LOW
CUT
This control adjusts the setting of the low-cut filter. Variable from no cut to cut below 300 Hz,
this feature reduces/eliminates extremely low frequencies that cause “low-end rumble,” and is
a very effective tone-shaping tool. It can also be used to reduce the “boominess” sometimes
encountered with male voices.
(6) HI
This active tone control is a shelving-type that varies high-frequency response by +/-15 dB in
the range above 12 kHz.
(7) MID
This active tone control is a bandpass (peak/notch) type that varies mid-frequency response
by +/-15 dB in a range from 200 Hz to 6 kHz.
5
INSERT
MIC
(TRS)
(BAL)
LINE
(BAL)
TIP=SEND RING=RETURN SLEEVE=GROUND)
INSERT
MIC
(TRS)
(BAL)
LINE
(BAL)
1
2
3
3
2
1
Содержание AAM 2443
Страница 1: ...AAM 2443 3243 User Manual ARCHITECTURAL ACOUSTICS...
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