DSP-30
DSP-30
Computer Configurable Digital Signal Processor
Featuring intuitive PC system configuration combined with “set-and-
forget” convenience, the DSP-30 unites easy-to-use, customizable,
two channel digital signal processing (DSP) with a simple preset
selection interface that requires only two buttons. It can be used with
all amplifiers and is housed in a 1RU, 19" rack mount steel chassis.
Sampling frequency is 48 kHz with 24-bit resolution. Dynamic range
is greater than 95 dB. Rugged and dependable in the spirit of all QSC
professional audio products, the DSP-30 is well suited to a variety of
applications including mobile DJ, club PA, and pro touring.
Powerful
The DSP-30’s powerful processor enables a wide range of signal processing
functions. Whether you need speaker crossovers, EQ, signal delay, or
infrasonic filters, the DSP-30 is as flexible as your system’s needs.
Each channel includes:
• Crossover filtering
• Compression and limiting
• Multiple Parametric EQs
• Precision attenuation
• Shelf filtering
• Mixing
• Multiple Delays (up to 910 ms)
• Tone and noise generation
Configurable
The DSP-30’s processing horsepower is dynamically assignable, so you
are not limited by a fixed signal chain. Simply use QSC’s powerful PC-
based Signal Manager software to easily configure multiple processing
functions and signal flow with “drag-and-drop” tools. The DSP-30
provides eight fully configurable user presets, selectable from front-
panel switches.
Cost-effective
The power and flexibility of the DSP-30 eliminates the need for individual
outboard signal processors—reducing cost, space, and installation time
for almost any application. Housed in a 1RU, 19-inch rack-mount steel
chassis, it can be used with all audio systems.
DSP-30
Signal Processing Functions and Additional Features
Multiple Parametric Filters, assignable anywhere in the signal chain:
Variable Frequency Variable Q
Variable Gain Show Response
Multiple Delays, assignable anywhere in the signal chain:
20.83 µsec incremental
910 msec maximum (total of all delays)
Compressor, assignable anywhere in the signal chain:
Gain Release Time
Threshold Show Response
Ratio Bypass
Attack Time
Output Peak Limiter, assignable anywhere in the signal chain:
Gain Release Time
Threshold Show Response
Attack Time Bypass
High and Low-Pass Crossover Filters, assignable anywhere in the
signal chain:
Butterworth 6, 12, 18, 24 dB per octave slope
Bessel 6, 12, 18, 24 dB per octave slope
Linkwitz-Riley 12 and 24 dB per octave slope
High and Low-Pass Shelf Filters, assignable anywhere in the
signal chain:
Variable Corner Frequency Variable Q
Variable Gain Show Response
Signal Mute
Attenuation 0.1 dB steps
Mix Post Crossover Audio (2➞1 Mixer)
Signal Splitter
Built-in Noise Generator (Pink & White)
Built-in Variable Frequency Tone Generator
Signal Polarity Reversal
Frequency Response readout for each filter
RMS and Peak Metering with Clip Indication
Add or delete up to 7 additional bands of “EQ” per filter block
Visual editing of composite filter response, using cursor controls
in graphical display
Hardware
Two independent channels of DSP
48 kHz, 24-bit converters
No turn on pops or “zipper” noise
If the memory or hardware fails, unit turns on muted to prevent
driver damage
Easy PC connection with front panel RS-232
Balanced Neutrik® Combo (XLR and 1/4") inputs and XLR outputs
Power and signal present LEDs with signal level
Numeric display indicates current preset
Eight fully configurable user presets
Preset Browse and Accept buttons with lock-out feature
Selectable input sensitivity: 1.5, 4, 9, 18 Vrms; 6, 14.5, 21.5, 27.5
3.5, 12, 19, 25 dBV
Software
“Drag-and-drop” configuration software
Hard copy printout of configuration layout or parameter settings
DSP processing power and memory is dynamically assigned to signal
processing functions — eliminating the limitations imposed by fixed
signal chain designs
Graphical representation of DSP resources
Firmware upgrades via RS-232
Download the latest Signal Manager software at www.qscaudio.com
System Requirements
Windows® 98, NT4 (SP6), and 2000 (SP1)*
SVGA monitor at 800 x 600 (min.); 1024 x 768 recommended
CD-ROM drive
32 MB RAM (min.)
10 MB free hard disk space (min.)
Available RS-232 COM port
dBu;
Individual or group bypass of EQ bands per filter block
Predictive Delay Feature — produces less signal distortion than analog
compressor/limiters — especially for fast attack times
Male to female 9-pin serial cable (for programming)
* Windows Me not supported
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