COMMUNICATION S, I N C.
MIXER/PREAMPLIFIER
MODEL DMP-06
INSTALLATION & OPERATION INSTRUCTIONS
The Bogen DMP-06 is a 7-by-2 mixer/preamplifier designed to
use Bogen plug-in modules for the flexibility to meet a wide range
of application requirements. The unit has 2 separate outputs, A &
B, each with its own master volume and tone controls. Each output
provides an independent mix of a built-in program input and up to
six module inputs. Each input has two level controls, to set the input
level of each mix. A variable muting feature (60dB range) mutes
the program input when rear panel contacts are shorted.
The Bogen plug-in modules define the the function of each
module input. Active-bus mixing allows interaction for three-level
priority. Modules set to priority level 1 can receive (are muted by)
priority signals from modules set to levels 2 and 3. Modules set to
priority level 2 send priority signals to (and mute) modules set to
priority level 1, and receive priority signals from modules set to
priority level 3. (Modules set to priority level 1 or 2 are also muted
when the rear panel MUTE terminals are shorted through a
contact closure.) Modules set to priority level 3 send priority signals
to (and mute) the program input and modules set to level 1 or 2.
I j The DMP-06 is designed for maintenance-free operation.
High-performance output circuitry assures peak performance even
under the most demanding applications. The frequency response
is flat within +0, -IdB from 20Hz to 20kHz. Distortion is less than
0 2% at maximum output across the entire bandwidth of 20Hz to
20kHz (+0,-ldB), and is typically less than 0.01%. Maximum noise
level is 72dB with the MASTER control at maximum. Input
sensitivity is lOOmV/lOkilohms for the module and program in
puts.
Each output channel provides direct 600-ohm unbalanced, and
transformer-coupled, 600-ohm balanced taps. Connection is via
screw terminals. Either mixing bus also may be strapped to other
D-Series equipment through separate bridging jacks.
Full range bass and treble controls provide ± lOdB cut or boost
at lOHz and lOkHz, respectively. Tone control defeat switches are
located in the module port cage to prevent tampering after instal
lation. The overall level for each output is set with separate
MASTER controls, and is displayed by three-color bar-type LED
output meters, which illuminate red to indicate possible signal
clipping conditions.
The unit operates from 120V, 50-60Hz AC. A rocker-type
power switch illuminates when the power is on. Dimensions are
5-l/2"H X 16-1/2"W X ll-3/8"D. The unit may be mounted in
standard equipment racks using Model DRK-3 Rack Panel Kit.
INSTALLATION
UNPACKING
The mixer was carefully checked before leaving the factory.
Inspect the shipping container and the unit closely for evidence of
Improper handling. If the unit has been damaged, place an Imme
diate claim with the dealer/distributor from whom the unit was
purchased. If the unit was shipped directly to you, file a claim with
the transportation carrier in accordance with ICC regulations.
RACK MOUNTING
The mixer is designed for installation in standard equipment
racks, using Model DRK-3 Rack Panel Kit.
MODULES
Caution
Be sure that the front-panel-mounted POWER switch is in
the OFF position before installing or removing modules.
Modules are easily inserted in any available port of the module
cage. Align the top and bottom edges of the module circuit board
in the slots of the port, and slide the module into the cage to engage
the card edge connectors. Secure the module to the amplifier with
two screws.
PRIORITY
Set the priority level on modules so equipped to the desired
level before installing them in the amplifier. The level is set by
repositioning printed circuit board-mounted shunts. The screening
on the module printed circuit board shows which pins to connect
for the desired priority level.
PRIORITY LEVEL 1 The module receives, and is muted by,
priority signals from any module set to priority level 2 or 3. A
module set to priority level 1 is also muted when the rear panel
MUTE terminals are shorted through a contact closure. (The
program input is pre-set at level 1.)
PRIORITY LEVEL 2 — The module sends priority signals to mute
any module set to priority level 1, and receives priority signals from
any module set to priority level 3. A module set to priority level 2
is also muted when the rear panel MUTE terminals are shorted
through a contact closure.
PRIORITY LEVEL 3 — The module set to priority level 3 sends
priority signals to mute modules set to priority level 1 or 2 and the
program (PGM) input. (The rear panel MUTE terminals function
at level 3 when shorted through a contact closure.)
OUTPUT TERMINAL STRIPS
Each output channel provides direct 600-ohm unbalanced, and
transformer-coupled, 600-ohm balanced taps. Connection is via
rear panel screw terminal strips.
Use single-conductor shielded cable when using the direct
output. Connect the cable shield to the GND terminal. Use two
conductor shielded cable when using the transformer-coupled
output. Connect the conductors to the HI and LO terminals;
connect the cable shield to the CT terminal.
When the transformer-coupled output is used to feed the sound
system, the direct output is available to feed a tape recorder or
similar high-impedance input.
Printed In U.S.A. S906 54-5896.02
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