27
PRE FDR/POST EQ (AUX SENDS 5–8)
Point Before: Fader
(switch up),
EQ IN
(switch down).
Point After:
AUX
sends
5–8
.
This switch has one difference from the
PRE
switch for
AUX
sends
1–4:
In the
PRE
mode
(named
POST EQ
), the tap point is still before
the Channel Fader, but after the
EQ
, instead of
before. If you prefer that your stage monitor
mixes have
EQ
, use these
AUX
sends with this
switch down. If you prefer no
EQ
, use
AUX
sends
1–4
with the
PRE
switch down.
MAIN AUX RETURNS (A1–A4)
You’ve no doubt noticed that the
MAIN AUX
RETURNS (A1–A4
) look suspiciously like the
Channels. That’s because they
are
Channels,
but they’re stereo instead of mono, with full
routing to the
LEFT/RIGHT/CENTER
and Sub-
group mixes,
AUX
sends and
SOLO
. we’ll just
cover the things that are different.
TRIM
The only difference between the Channel
TRIM
and this one is the gain range (and
the fact that this one is stereo). With the control
fully down there will be 10dB of attenuation.
With the control fully up, 10dB of boost.
Perform the
Level-Setting Procedure
every time you patch in a new sound source to
these stereo Channels, to assure maximum
headroom and minimum noise.
HPF
This operates the same way as it does on
the Channels — engage the switch to activate
the
HPF
(high pass filter). The difference is
that the frequency is not adjustable — it’s pre-
set at 150Hz, with a 18dB per octave curve.
We recommend that you leave the
HPF
engaged at all times unless the signal has im-
portant ultra-low-frequency content that would
be diminished by using a 150Hz
HPF
. However,
these stereo Channels are designed to handle
AUX
return signals, and those signals rarely
have this ultra-low-frequency content.
EQ
The
MAIN AUX RETURNS
(
A1
–
A4
) have
4-band
EQ
, but the two midrange bands do not
have frequency sweep controls. The
frequencies are fixed at 12kHz (
HI
shelving),
3kHz (
HI-MID
bandpass), 800Hz (
LOW-MID
bandpass), and 80Hz (
LOW
shelving).
Using
HPF
with
EQ
allows you to boost
the
LOW EQ
without boosting the subsonic
debris, cleaning up your mix and conserving
amplifier power. We highly recommend its use.
-10
+10
U
U
O
O
+15
U
O
O
+15
U
O
O
+15
U
O
O
+15
U
+15
-15
U
+15
-15
U
+15
-15
U
O
O
+15
U
O
O
+15
U
O
O
+15
U
O
O
+15
U
+15
-15
LOW CUT
150 Hz
18dB/OCT
A
4
1
PRE
2
3
5
6
12k
HI
80Hz
EQ IN
LOW
AUX
EQ
4
PRE FDR
POST EQ
7
8
HI
MID
3k
LOW
MID
800Hz
A4
TRIM
20
Hz
100
Hz
1k
Hz
10k
Hz
20k
Hz
–15
–10
–5
0
+5
+10
+15
20
Hz
100
Hz
1k
Hz
10k
Hz
20k
Hz
–15
–10
–5
0
+5
+10
+15
20
Hz
100
Hz
1k
Hz
10k
Hz
20k
Hz
–15
–10
–5
0
+5
+10
+15
20
Hz
100
Hz
1k
Hz
10k
Hz
20k
Hz
–15
–10
–5
0
+5
+10
+15
20
Hz
100
Hz
1k
Hz
10k
Hz
20k
Hz
–15
–10
–5
0
+5
+10
+15
Main Aux
Returns
(A1–A4)
Top to bottom:
High Shelving,
High-Mid
Peaking, Low-
Mid Peaking,
Low Shelving,
High Pass
Filter.
