2
MICROMIX
In addition to the XLR inputs, each channel features ¼-inch
LINE
in jacks. Channels
1-2, 5/6 and 7/8 are
balanced
line-level inputs and will accept either
balanced
(
T
ip/
R
ing/
S
leeve) or
unbalanced
(
T
ip/
S
leeve) input cables from high impedance microphones,
mixer line outputs, keyboards, synthesizers, electric pianos etc.
Note:
When connecting a balanced signal, use balanced patch cables with either an
XLR or a
T
ip/
R
ing/
S
leeve ¼-inch plug on the mixer end.
Channels 3 and 4 have very
high impedance
,
unbalanced
¼-inch inputs which are opti-
mized for instruments such as electric basses, acoustic electric guitars etc. Stereo chan-
nels 5/6 and 7/8 have left and right ¼-inch
balanced
LINE
in jacks as well as mono
gold-
plated
XLR low impedance microphone inputs. The ¼-inch inputs may be used to connect
a stereo CD player, tape deck or an additional mixer etc. A phono pre-amplifier must be
connected to the
M608
inputs for optimum turntable performance.
Connecting signals to both types of inputs on any one channel (MIC and LINE in) is
not recommended. To do so may change the gain of the input circuit.
Note:
You may connect a stereo source to channels 1 through 6 but you must
use two channels, one for left and one for right and Pan appropriately or sum to
mono using a ‘Y’ cable.
2. Channel GAIN Controls and CLIP LEDs
This adjustment determines the signal level sent to the
MAIN
mixing bus. The
CLIP LED
will illuminate when the channel’s overall signal level is 3 dB below the onset of actual
clipping. As a result, small amounts of
clip
LED
activity are acceptable, however frequent
or continuous activity indicates the need to turn down the
GAIN
control.
In audio terminology, a bus is a mix-down channel where all the signals from the
input channels are blended into one signal. The M608 has 5 busses: MAIN (left and
right), MONITOR, EFFECTS and RECORD OUT.
3. Channel Lo, Mid, and Hi Equalization
The
M608
tone controls adjust the bass, middle and treble frequencies for each channel
independently. Center frequencies have been carefully selected to help achieve the best
quality of sound.
Bass
is centered on 40 Hz,
Mid
at 700 Hz and the
Hi
is at 12 kHz. The
adjustment range for each control is +/- 15 dB. These parameters provide versatile equal-
ization consistent with the clean simplicity of the
M608
’s design. As with equalizers,
boosting one or more frequencies increase the channel’s level. If the channel is already at
a high level, clipping may occur, in which case the
clip LED
will illuminate. Reduce the
GAIN
setting and/or the
Equalizer
if clip activity is excessive.
Note:
The center position reflects a neutral or flat EQ control setting; however, turn-
ing down EQ settings can be used effectively to reduce feedback and/or distortion).
4. Channel MON Controls
The
MON
control (monitor send) on each channel varies the amount of signal being
sent to the monitor bus in the
M608
. In the mono channels the
MON
signal is
pre-
GAIN
control and
pre-
EQ
. It is taken before the
GAIN
control so the monitor signal can
be mixed independently of the
MAIN
mix. As a result, channel
EQ
and
GAIN
settings
do not affect the sound of the monitor signals. The
MON
signal in the stereo channels
is also
pre-
GAIN
and
pre-
EQ
.
Note:
With an independent monitor mix, it may be beneficial to connect a graphic
equalizer between the MON output and the monitor amplifier (Power AMP IN B,
external amplifier or powered speakers, depending on how you have it set up) to
help control feedback.
5. Channel EFX Controls
The
EFX
control (effects send) for each channel adjusts the level of the channel signal
being sent to the
M608
effects bus. This signal is
post-
GAIN
control and
post-
EQ
, the
sound is affected by both the channel
EQ
controls and the channel
GAIN
control. The sig-
nal from the effects bus is internally routed to the
Digital Effects Processor
. The channel
EFX
control regulates the intensity of the
built-in digital effects
for the channel’s output.
When using the
built-in digital effects
, you can connect a standard on/off footswitch (e.g.
Yorkville model AFS1) to the
EFX Out/Footswitch
jack to turn the internal effects on or off.
For more information see the section
EFX Out/Footswitch
in this manual.
0
5
2
8
7
6
4
3
9
1
10
0
10
-15
+15
dB
-15
+15
dB
-15
+15
dB
0
5
2
8
7
6
4
3
9
1
10
Pan
Mon
EFX
GAIN
Lo
Mid
Hi
1
clip
