Crown Audio Stereo Amplifier DSi 8M User Manual

D S i S E R I E S  
DSi-8M  
he Crown® DSi-8M is a projection booth  
monitor designed to work with bi-ampli-  
Bargraph display may be calibrated to the refer-  
ence level for your theater; projectionist sees  
auditorium levels instantly  
Features  
T
fied cinema systems using the Crown DSi  
Compact 2-rack unit  
Series amplifiers.  
8 channels for monitoring processor or ampli-  
fier inputs  
25-pin D-sub connectors, plus removable ter-  
minal blocks and HD-15 for quick, hassle-free  
connections  
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.  
All inputs and outputs are balanced to interface  
with new cinema processors  
Designed to work with bi-amplified sound sys-  
tems to monitor the high- and low-frequency  
outputs from the left, center and right channels  
Input levels for processor and power amps can  
be adjusted independently  
No level jumps when switching between pro-  
cessor and amplifiers  
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.  
Three-Year, No-Fault, Fully Transferable War-  
ranty completely protects your investment and  
guarantees its specifications  
The bargraph display can be calibrated to the  
reference level for your theater. The projection-  
ist can see auditorium levels instantly.  
mono or stereo 1/4" phone plug here disables  
the internal speaker and routes the audio  
output to the Test Jack.  
Using VGA cables, the HD-15 connectors can  
be connected to Crown DSi power amplifier  
HD-15 connectors as described below.  
Your investment in a DSi-Series product is  
backed by Crown’s Three-Year, No-Fault, Fully  
Transferable Warranty.  
Internal Speaker: For convenenient monitor-  
ing at the monitor panel.  
HD-15 Connector 1: For cinema I/O compatibil-  
ity. Connects to Ls/Rs amplifier.  
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  
Power Switch and Power LED: Rocker switch  
turns power on or off. LED illuminates when  
power is on.  
HD-15 Connector 2: Connects to Bsl/Bsr  
amplifier.  
HD-15 Connector 3: Connects to Rl/Rh ampli-  
fier.  
Specifications  
Rear Panel Controls and Connectors  
IEC AC Power Receptacle: Connects to an IEC  
AC power cord.  
HD-15 Connector 4: Connects to Sw amplifier.  
Input Impedance (Processor Inputs): 10 k  
HD-15 Connector 5: Connects to Ll/Lh ampli-  
fier.  
ohms.  
Input Impedance (Power Amplifiers Inputs):  
> 50 k ohms.  
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.  
HD-15 Connector 6: Connects to Cl/Ch ampli-  
fier.  
Power Requirements: 100-240V , 50-60 Hz,  
32 watts.  
Optional Input Connector: 25-pin D-sub con-  
nector connects to the EX output of the proces-  
sor.  
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.  
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.  
Volume Control: Rotary potentiometer with  
knob controls the volume of the internal or  
external speaker. Has no effect on the VU  
Bargraph Meter display.  
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.  
Construction  
Chassis: Steel.  
Processor/Amplifier Selector Switch and  
LEDs: Pushbutton switch with corresponding  
LEDs selects inputs from cinema procesor or  
power amplfiers for monitoring.  
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.  
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:  
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.  
Net Weight:  
10 lb 2 oz (4.63 kg).  
1. Connect DSi 8M outputs to DSi amplifier  
inputs.  
Shipping Weight:  
16 lb (7.26 kg).  
Test Jack: 1/4" phone jack lets the user moni-  
tor the audio output of the DSi-8M. Inserting a  
2. Connect DSi amplifier outputs to DSi 8M  
inputs for monitoring.  
 

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