Crown Audio CTs 2-Channel - Manual (Page 63)

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SPECIFICATIONS
Performance
Input Impedance (processor inputs): 10 kilohms.
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 cor-
responding 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
displays input level of selected channels from
–40 VU to +3 VU. May be calibrated by the
rear-panel trim adjustment. Operates inde-
pendently of the Volume Control.
Test Jack: 1/4" phone jack lets the user moni-
tor the audio output of the DSi-8M. Insert-
ing 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 Sur-
round, Back Surround Left, Back Surround
Right and Subwoofer channels. This connec-
tor 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
signals. The HD-15 connectors have two
functions:
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 compat-
ibility. Connects to Ls/Rs amplifi er.
HD-15 Connector 2: Connects to Bsl/Bsr
amplifi er.
HD-15 Connector 3: Connects to Rl/Rh
amplifi er.
HD-15 Connector 4: Connects to Sw ampli-
fi er.
HD-15 Connector 5: Connects to Ll/Lh
amplifi er.
HD-15 Connector 6: Connects to Cl/Ch
amplifi er.
Optional Input Connector: 25-pin D-sub
connector connects to the EX output of the
processor.
Bargraph Level: Trimpot adjusts the sensitiv-
ity of the front-panel VU Bargraph Meter.
Main Input Connector: 25-pin D-sub con-
nector 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).
Regulatory Certifications
T he Crown ® DSi-8M is a projection booth monitor designed to work with bi-amplifi 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 moni-
tor 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 amplifi er can be adjusted indepen-
dently. 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 projectionist
can see auditorium levels instantly.
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