Crown Audio DSi-8M - Manual

DSi-8M
D S i S E R I E S
T he Crown ® DSi-8M is a projection booth
monitor designed to work with bi-ampli-
fi ed cinema systems using the Crown DSi
Series amplifi ers.
All controls necessary for daily operation of
the DSi-8M are easily accessible on the front
panel. 8-channel monitoring allows you to
monitor either the processor or the power
amplifi er’s outputs: L,C, R, Ls, Rs, Bsl, Bsr,
and Sub in any combination.
Input levels from the processor and power am-
plifi er can be adjusted independently. There are
no huge level jumps when switching between
processor and power amplifi ers.
The bargraph display can be calibrated to the
reference level for your theater. The projection-
ist can see auditorium levels instantly.
Your investment in a DSi-Series product is
backed by Crown’s Three-Year, No-Fault, Fully
Transferable Warranty.
For more details about the Crown DSi Series,
contact the Crown Technical Support Group at
800-342-6939 or 574-294-8200. Also, visit the
Crown Audio website at www.crownaudio.com.
Specifi cations
Input Impedance (Processor Inputs): 10 k
ohms.
Input Impedance (Power Amplifi ers Inputs):
> 50 k ohms.
Power Requirements: 100-240V , 50-60 Hz,
32 watts.
Front Panel Controls and Indicators
Channel Select Buttons and LEDs: Eight
pushbutton switches, one for each input
channel. Pressing a button monitors the signal
from that channel, and lights the correspond-
ing LED. Any combination of eight channels
can be selected.
Volume Control: Rotary potentiometer with
knob controls the volume of the internal or
external speaker. Has no effect on the VU
Bargraph Meter display.
Processor/Amplifi er Selector Switch and
LEDs: Pushbutton switch with corresponding
LEDs selects inputs from cinema procesor or
power amplfi ers for monitoring.
VU Bargraph Meter: 12-segment meter dis-
plays input level of selected channels from –40
VU to +3 VU. May be calibrated by the rear-
panel trim adjustment. Operates independently
of the Volume Control.
Test Jack: 1/4" phone jack lets the user moni-
tor the audio output of the DSi-8M. Inserting a
mono or stereo 1/4" phone plug here disables
the internal speaker and routes the audio
output to the Test Jack.
Internal Speaker: For convenenient monitor-
ing at the monitor panel.
Power Switch and Power LED: Rocker switch
turns power on or off. LED illuminates when
power is on.
Rear Panel Controls and Connectors
IEC AC Power Receptacle: Connects to an IEC
AC power cord.
Input Connector 1: 10-pin Phoenix terminal
block connects to the power amplifi er speaker
outputs for the Left Surround, Right Surround,
Back Surround Left, Back Surround Right and
Subwoofer channels. This connector lets you
monitor the output of amplifi ers that do not
include HD-15 connector options.
Input Connector 2: 10-pin Phoenix terminal
block connects to the power amplifi er speaker
output for the Left High, Left Low, Center
High, Center Low, Right High and Right Low
channels. This connector lets you monitor the
output of amplifi ers that do not include HD-15
connector options.
Amplifi er Level Control: Trimpot adjusts
the level of the input signals from the power
amplifi ers.
Processor Level: Trimpot adjusts the level of
the input signals from the processor.
Outputs to Power Amplifi er Inputs: The six
HD-15 connectors in this section connect to
DSi amplifi ers for both input and output sig-
nals. The HD-15 connectors have two func-
tions:
1. Connect DSi 8M outputs to DSi amplifi er
inputs.
2. Connect DSi amplifi er outputs to DSi 8M
inputs for monitoring.
Using VGA cables, the HD-15 connectors can
be connected to Crown DSi power amplifi er
HD-15 connectors as described below.
HD-15 Connector 1: For cinema I/O compatibil-
ity. Connects to Ls/Rs amplifi er.
HD-15 Connector 2: Connects to Bsl/Bsr
amplifi er.
HD-15 Connector 3: Connects to Rl/Rh ampli-
fi er.
HD-15 Connector 4: Connects to Sw amplifi er.
HD-15 Connector 5: Connects to Ll/Lh ampli-
fi er.
HD-15 Connector 6: Connects to Cl/Ch ampli-
fi er.
Optional Input Connector: 25-pin D-sub con-
nector connects to the EX output of the proces-
sor.
Bargraph Level: Trimpot adjusts the sensitivity
of the front-panel VU Bargraph Meter.
Main Input Connector: 25-pin D-sub connector
connects to the main outputs of the processor.
“EX” Selector Switch: 8-position DIP switch.
Turn on switches 1-4 if system is without EX.
Turn on switches 5-8 if system is with EX. This
routes the correct Ls/Rs inputs to the DSi-8M
circuitry.
Construction
Chassis: Steel.
Dimensions: EIA Standard 19-inch rack mount
width (EIA RS-310-B), 3.5 inches (8.9 cm) high
and 9.625 inches (24.4 cm) deep behind front
mounting surface.
Net Weight:
10 lb 2 oz (4.63 kg).
Shipping Weight:
16 lb (7.26 kg).
Features
• Compact 2-rack unit
• 8 channels for monitoring processor or ampli-
fi er inputs
• All inputs and outputs are balanced to interface
with new cinema processors
• Input levels for processor and power amps can
be adjusted independently
• No level jumps when switching between pro-
cessor and amplifi ers
• Bargraph display may be calibrated to the refer-
ence level for your theater; projectionist sees
auditorium levels instantly
• 25-pin D-sub connectors, plus removable ter-
minal blocks and HD-15 for quick, hassle-free
connections
• Designed to work with bi-amplifi ed sound sys-
tems to monitor the high- and low-frequency
outputs from the left, center and right channels
• Three-Year, No-Fault, Fully Transferable War-
ranty completely protects your investment and
guarantees its specifi cations