9
Controls and Functions
MASTER SECTION (continued)
Auxiliary Returns
The MDR8 has two stereo auxiliary returns, which can be accessed via the two pairs of 1/4-inch phone jacks located on the
rear panel. The auxiliary returns can be used to connect any stereo line level signal, but they are primarily used to connect the
output of external effects processors. The MDR8’s on-board effects are internally connected to the auxiliary 2 return.
AUX RET 1
This adjusts the amount of signal that is sent from the AUX 1 RET jacks to the MAIN bus.
AUX/DSP RET 2
The AUX/ DSP RET 2 adjusts the level of the signal present at the AUX
2 RET jacks. This signal is summed, or mixed in to the main L/R MIX
bus. When using the on-board digital effects, the AUX/DSP RET 2 con-
trol is used to control the output level of the internal DSP effects proces-
sor, which is also summed with the main L/R MIX bus.
Output Section
The MDR8 has two main outputs for listening to your stereo mix. The Left and
Right Mix outputs, which, in a live sound application, you’ll hook up to your
power amp and PA speakers, and the Control Room outputs which you’ll use to
connect your powered studio monitors to in a recording application. The follow-
ing section explains the controls that you will use to route the signal to feed
these outputs.
MIX/2T
The MIX/2T switch selects the signal source that you are monitoring in the
CONTROL ROOM and HEADPHONE outputs. When the switch is in the
up position, the signal source is from the LEFT/ RIGHT MIX bus. Since
the signal source is now set to the Left and Right Mix bus, be sure that
the Left and Right Mix faders are pushed up to feed the signal to the
Control Room and headphone outputs. When the MIX/2T switch is in the
down position, the signal source is from the 2 TRACK input. Since the sig-
nal source is now set to the 2-track input, be sure that the 2TK LEVEL
control is turned up to feed the signal to the Control Room and head-
phone outputs.
C/ROOM + PHONES
The C/ROOM + PHONES control is used to set the level sent to the Control Room outputs, and also to the headphone
jack. As explained in the previous section, the MIX/2T will determine what signal is sent to the Control Room and
Headphone outputs. Be sure to adust the Left and Right Mix faders or 2T to Mix control to send the desired signal level
to the Control Room and Headphone outputs.
L MIX R
The L&R MIX faders are the over-all volume control for the MIX bus. The L&R MIX faders affects both the signal which
is output to the CONTROL ROOM speakers and the line level signal which is output from the MIX OUTPUT jacks.
Meters and Indicators
+48V - Phantom Power LED
The +48V LED illuminates indicating that the 48 volt phantom power is applied to the microphone pre-amps enabling
use with condenser microphones. The +48V LED will light up when the Phantom Power switch located on the rear
panel is switched to the ON position.
POWER LED
The Power LED lights up to indicate that the main POWER switch, located on the rear panel, is on.
Output Level Meter
The OUTPUT LEVEL METER allows you to monitor the level of the signal which is being sent to the L&R MIX OUTPUT
jacks.
NOTE: To avoid distortion, adjust the L/R MIX faders LEVEL control so that the 0 indicator LED lights occa-
sionally.
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