DSi-8M
DSi SERIES
The Crown®DSi-8M is a projection booth
monitor designed to work with bi-ampli-
fied cinema systems using the Crown DSi
Series amplifiers.
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
amplifier’s outputs: L,C, R, Ls, Rs, Bsl, Bsr,
and Sub in any combination.
Input levels from the processor and power am-
plifier can be adjusted independently. There are
no huge level jumps when switching between
processor and power amplifiers.
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.
Specifications
Input Impedance (Processor Inputs): 10 k
ohms.
Input Impedance (Power Amplifiers 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/Amplifier Selector Switch and
LEDs: Pushbutton switch with corresponding
LEDs selects inputs from cinema procesor or
power amplfiers 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 amplifier 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 amplifiers that do not
include HD-15 connector options.
Input Connector 2: 10-pin Phoenix terminal
block connects to the power amplifier 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 amplifiers that do not include HD-15
connector options.
Amplifier Level Control: Trimpot adjusts
the level of the input signals from the power
amplifiers.
Processor Level: Trimpot adjusts the level of
the input signals from the processor.
Outputs to Power Amplifier Inputs: The six
HD-15 connectors in this section connect to
DSi amplifiers for both input and output sig-
nals. The HD-15 connectors have two func-
tions:
1. Connect DSi 8M outputs to DSi amplifier
inputs.
2. Connect DSi amplifier outputs to DSi 8M
inputs for monitoring.
Using VGA cables, the HD-15 connectors can
be connected to Crown DSi power amplifier
HD-15 connectors as described below.
HD-15 Connector 1: For cinema I/O compatibil-
ity. Connects to Ls/Rs amplifier.
HD-15 Connector 2: Connects to Bsl/Bsr
amplifier.
HD-15 Connector 3: Connects to Rl/Rh ampli-
fier.
HD-15 Connector 4: Connects to Sw amplifier.
HD-15 Connector 5: Connects to Ll/Lh ampli-
fier.
HD-15 Connector 6: Connects to Cl/Ch ampli-
fier.
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-
fier 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 amplifiers
• 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-amplified 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 specifications
