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Summary of Contents for QSC DSP-30
- Page 1 Hardware Manual DSP-30 2.2 XLR Rack-mount, 2 Channel Digital Signal Processor *TD-000097-00* TD-000097-00 Rev.B...
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Page 2: Explanation Of Graphical Symbols
WHILE QSC HAS ENDEAVORED TO DEVELOP AND PRODUCE THE MOST DEPENDABLE AND ROBUST DIGITAL SIGNAL PROCESSOR (DSP) AUDIO PRODUCT FOR YOUR USE, DUE TO THE UNLIMITED AND POTENTIALLY DESTRUCTIVE (TO THE SOUND SYSTEM) CONFIGURATIONS THAT MAY BE APPLIED TO THE DSP BY THE USER, QSC CANNOT BE HELD RESPONSIBLE FOR DAMAGES RESULTING FROM ANY DEVIATION OR FAILURE BY THE USER TO STRICTLY FOLLOW THE RECOMMENDA- TIONS SET FORTH IN THE OWNER’S MANUAL FOR THE INTEGRATION OF THE DSP AND SIGNAL MANAGER SOFTWARE WITH YOUR SOUND SYSTEM. -
Page 3: Table Of Contents
INSTALLATION SPECIFICATIONS... ARCHITECT’S & ENGINEER’S SPECIFICATION QSC INFORMATION QSC® is a registered trademark of QSC Audio Products, Inc., Costa Mesa, CA “QSC” and the QSC logo are registered with the U.S. Patent and Trademark Office Product Overview...4 Front and Rear Panel Illustrations and Dimensions...4 Unpacking...6... -
Page 4: Product Overview
The DSP-30 provides powerful signal processing while keep- ing operation as simple. Preset operating modes are user- selectable by scrolling through the list of numbered Presets on the front panel display and selecting. The DSP-30 will mute, Front Panel Power ‘on’ indicator LED Power switch Signal indicator LED’s... - Page 5 Introduction: Illustrations and Dimensions Dimensions...
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Page 6: Installation
Support the Rear for Portable/Mobile Installations If the DSP-30 is to be transported while in a rack, we recommend supporting the rear of the chassis. This will help prevent the unit from being damaged from the increased mechanical stresses of portable and mobile use. The DSP- 30’s chassis includes integral rear mounting tabs for securing to the rack mounting ears. -
Page 7: Balanced Audio Connector Pinouts
Installation: Balanced Audio Connections Connecting Audio Inputs and Outputs All audio connections should be balanced to ensure the best performance. Unbalanced signals may be used if necessary; follow the wiring guidelines below for recommended unbalanced termination. The audio input jacks are female 3-pin XLR /TRS “combo” connectors. They will accept male XLR plugs or TRS (tip-ring-sleeve) 1/4-inch phone plugs. -
Page 8: Unbalanced Audio Connector Pinouts
Installation: Unbalanced Audio Connections Connecting Audio Inputs and Outputs All audio connections should be balanced to ensure the best performance. Unbalanced signals may be used if necessary; follow the wiring guidelines below for recommended unbalanced termination. The audio input jacks are female 3-pin XLR /TRS “combo” connectors. They will accept male XLR plugs or TRS (tip-ring-sleeve) 1/4-inch phone plugs. -
Page 9: Audio Inputs And Outputs
Connecting Audio Inputs and Outputs Audio Connections Once the input and output cables have been properly wired, they can be connected to the receptacles on the rear panel of the DSP-30. INPUTS- Input jacks are “combo” style. They accept either male XLR or 1/4-inch diameter TRS phone plugs. -
Page 10: Connecting To The Rs-232 Port
“Null-modem” type cables will NOT work. Connection to the computer is required only while loading the presets into the DSP-30 or for “real-time” adjustments to a configuration before saving it as a Preset. Communication is established using the Signal Manager program. Refer to the software help file section, “RS-232 Communication”... -
Page 11: System Requirements
System Requirements and Software Installation The DSP-30 relies on the Signal Manager software for its DSP signal chains or configurations. You must use the supplied software to design your configurations and then load those configurations into the DSP-30 using a simple RS-232 connection. -
Page 12: Control, Indicator, And Connector Descriptions
Use: Control, Indicator, and Connector Descriptions FRONT PANEL POWER switch- This rocker switch turns the unit on by pressing the top side of the switch. Turn off by pressing the bottom side of the switch. CHANNELS- These green LED’s illu- minate when the unit detects an input signal on each channel. -
Page 13: Ac Power Receptacle
Preset. AC power receptacle- The DSP-30 uses a detachable IEC standard power cord for connecting to a grounded AC source. To connect power: identify the proper end of the cord, match the orientation of the receptacle on the rear panel and insert firmly into the receptacle. The power supply will accept from 100 to 240 Volts AC, 47 to 63 Hertz. -
Page 14: General Use Guidelines
Use: General Use Guidelines and Preset Description IMPORTANT! Please read before operating this Digital Signal Processor with your audio system. General Use Guidelines This is a professional level DSP product that allows the user to produce virtually unlimited signal processor variations and configurations. -
Page 15: Presets
How to Save Presets into the DSP-30 1- Connect the DSP-30 to the PC using a 9-pin serial cable. Run the Signal Manager program. The preset configuration that is running in the DSP will be displayed on the Signal Manager workspace. -
Page 16: How To Recall Presets
Once the preset is active, the display will stop flashing. Note! The ACCEPT button must be pushed within 30 seconds of selecting the preset. If a longer time passes, the DSP-30 will revert to its original preset. Additional Tips: a) Recalling presets will typically be done without the use of a PC by using the Browse and Accept buttons on the front panel. -
Page 17: Front Panel Display
The Lock indicator will extinguish. The Browse button is enabled. Note: When the PC is communicating with the DSP-30, the LOCK INDICATOR will occasionally illuminate. This is normal and prevents commands from both the front panel and PC from interfering with one another. -
Page 18: Contact Closure Feature
Use: Contact Closure Feature Contact Closure Feature The contact closure feature is used to trigger gain changes in the DSP. Any configuration that uses one or more switched gain objects (see Signal Manager software Help file ) can take advantage of this feature. The contact closure will trigger all switched gain objects at once. -
Page 19: Rs-232 Pinout
Use: RS-232 Pinout RS-232 Pinout: The diagram below shows the pin assignments for the female RS-232 connector on the DSP. Signal Description Contact Closure *Note! Pin 9 is used for contact closure input. This pin is not normally used by RS- 232 devices. -
Page 20: Application Example
Use: Application Example TRI-AMPED PA CABINETS WITH SUBWOOFER (refer to illustration at right) This is highly generalized, but shows the main idea in cre- ating larger systems. In this example, the audio source material is connected to the inputs of all four DSP’s. Take care to keep right and left channel signals connected to the correct channels of downstream equipment. - Page 21 Use: Application Example TRI-AMPED PA CABINETS WITH SUBWOOFER: Sample Application Diagram...
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Page 22: Specifications
Specifications Audio Converters 24 bit, 48 kHz. Frequency response 20 Hz–20 kHz ±0.4 dB at 1dB below full scale input voltage (all sensitivities) Distortion <0.007% THD+N @ 1dB below full scale output, all sensitivities, 20 Hz– 20 kHz Group Delay 1.00 milliseconds Dynamic range >95dB unweighted, 1.5V, 4V and 9V input sensitivity... - Page 23 Operating temperature 0° to 50° Celsius 8 programmable presets RS-232 control Signal splitter Signal polarity selection NOTE! Full scale output voltage of the DSP-30 is 9.30 Volts (rms) Internal Power Supply AC Input Voltage AC Input Current Frequency Power Cord Recommended Note: Specifications are subject to change without notice.
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Page 24: Architect's And Engineer's Specification
Units will be user-selectable from dBu, dBV and Volts (rms). Control— The DSP shall be configurable via a front panel acces- sible RS-232 port. The Digital Signal Processor shall be the QSC DSP-30. -
Page 25: Maintenance, Warranty & Qsc Contact Information
If the DSP-30 is returned to the factory for service, it should be sent in the proper QSC carton. If you did not save the original carton, ask your QSC dealer for one or call QSC to have one sent to you. - Page 26 Notes...
- Page 27 Notes...
- Page 28 PH: (714) 754-6175 FAX: (714) 754-6174 © Copyright 2001, QSC Audio Products, Inc. QSC® is a registered trademark of QSC Audio Products, Inc., Costa Mesa, CA “QSC” and the QSC logo are registered with the U.S. Patent and Trademark Office...
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