Crown DSi-8M Amplifier

Crown DSi-8M Amplifier

The 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 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 amplifi 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 projectionist can see auditorium levels instantly. Your investment in a DSi-Series product is backed by Crown’s Three-Year, No-Fault, Fully Transferable Warranty.

Specifications

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 corresponding 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 rearpanel trim adjustment. Operates independently of the Volume Control.

Test Jack: 1/4" phone jack lets the user monitor 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 monitoring 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 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 compatibility. 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 amplifi 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 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).