DSP-30 Computer Configurable Digital Signal Processor

The DSP-30 can be used with all amplifiers and is housed in a 1RU, 19-inch 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.

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.

Hardware

48kHz, 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 dBu; 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 dynamically assignable to signal processing functions— eliminating the limitations imposed by fixed signal chain designs
Graphical representation of DSP resources
Firmware upgrades via RS-232

DSP-30 Functions

Multiple Parametric Filters, assignable anywhere in the signal chain:

Variable Frequency
Variable Gain
Variable Q
Bypass (one EQ Band)
Bypass all EQs
Add EQ
Delete EQ
Show Response

Multiple Delays, assignable anywhere in the signal chain

910 msec Maximum
20.83 μsec Incremental

Dynamics processor with Compressor assignable anywhere in the signal chain:

Gain
Threshold
Ratio
Attack Time
Release Time
Show Response
Bypass

Output Peak Limiter, assignable anywhere in the signal chain:

Gain
Threshold
Attack Time
Release Time
Show Response
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
Bypass (one EQ Band)
Bypass all EQs
Add EQ
Delete EQ
Show Response
High and Low-Pass Shelf Filters, assignable anywhere in the signal chain:
Variable Corner Frequency
Variable Gain
Variable Q
Bypass (one EQ Band)
Bypass all EQs
Add EQ
Delete EQ
Show Response
Signal Mute
Attenuation: 0.1 dB steps
Mix Audio (2 to 1 Mixer)
Signal Splitter
Built-in Noise Generator (Pink & White)
Built-in Variable Frequency Tone Generator
Signal Polarity Reversal
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
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

Powerful

The DSP-30's powerful processor enables a wide range of signal processing functions. Whether you need speaker crossovers, EQ, time delay, or subsonic filters, the DSP-30 is as flexible as your system's needs.

Each channel includes:

Crossover filtering
Multiple parametric EQs
Shelf filtering
Tone and noise generation
Precision attenuation
Multiple delays (up to 910 ms)
Mixing
Compression and limiting

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.

Weitere technische Spezifikationen

Audio Converters: 24 BIT, 48 kHz
Frequency Response: 20 Hz to 20 kHz ± 0.4 dB at 1 dB below full scale input voltage (all sensitivities)
Distortion: <0.007% THD+N at 1 dB below full scale output (all sensitivities) 20 Hz to 20 kHz
Throughput Delay: 1.00 milliseconds (A/D –› DSP –› D/A)
Dynamic Range: >95 dB unweighted, 1.5V, 4V and 9V input sensitivities
AES-17 -60 dB Method: >93 dB unweighted, 18V input sensitivities
Input Sensitivity (Full scale sine wave RMS before clipping. Full scale output voltage 9.3 Vrms.):
- 1.5, 4, 9, 18 Vrms
- 6, 14.5, 21.5, 27.5 dBu
- 3.5, 12.0, 19.0, 25.0 dBV
Polarity: In-phase or inverted
Mute: >95 dB attenuation
Inputs
- Program inputs: 2
- Connector: Balanced Neutrik Combo
- Type: Electronically balanced
- Grounding: All shield terminals connected to chassis
- Input sensitivity (full scale input level): Level and units are selectable in software interface
- Impedance: 8.3 K Ohm balanced, 3.7 K Ohm unbalanced
- Common-mode rejection: > 54 dB, 20 Hz-20 kHz
- Crosstalk: > 80 dB separation, 20 Hz-20kHz
Outputs
- Program outputs: 2
- Connector: 3-pin male XLR receptacle
- Type: Electronically balanced
- Grounding: All shield terminals connected to chassis
- Output level: Level and units are selectable in software interface
- Maximum output (full scale): 9.3 Vrms (+21.5 dBu), THD <1.0%
- Output pad: -6 dB
- Output impedance: 600 Ohms balanced
RS-232 Port
- Port type: RS-232, female, straight through
- Cable type: 9-pin serial cable, male-to-female (serial extension cable)
- Maximum length: 25 feet (7.6 meters)
Contact Closure Input
- Inputs: 1 discrete input (pin #9 of RS-232 port)
- Configuration: Single-ended input, pull LOW (to GND, pin5) for closure detect
- Resistance for closure detect: <150 Ohms
- Resistance for open detect: >1.9 K Ohms
- TTL compatible thresholds with9V DC max input
Power Amplifier Interface, Compatibility: Works with all professional audio power products
Indicators: Power:
- 1 blue LED
- Channel 1 and Channel 2 signal level: 2 green LED’s, Active Preset
- Number and Lock
Chassis Type: Steel (chassis and covers)
Dimensions:
- 1.73" (4.4 cm) height
- 18.9" (48.0 cm) width (including rack ears)
- 14.9" (37.5 cm) depth (including rack ears)
- 13.7" (34.8 cm) depth (excluding rack ears)
Weight
- 9.5 lbs. (3.4 kg) net
- 12.5 lbs. (4.1 kg) shipping
Mounting: May be rack mounted or may be used separate from rack
Operating temperature range: 32° to 122° F (0° to 50° C)
Internal Power Supply
- AC Input Voltage: Autodetect 100-240 VAC
- AC Input Current: 0.3 Amps rms
- Frequency: 50 to 60 Hz
- Power Cord: IEC-type detachable 6 ft. cord

DSP30 QSC Digital Signal Processor (19 KB)
Speichern

Signal Manager

DSP Konfiguration leicht gemacht mit der PC-basierten "Drag-and-Drop" Software Signal Manager. Der Nutzer kann auf DSP Einstellungen schnell und einfach zugreifen und konfiguieren. Die DSP Ressourcen werden grafisch dargestellt.

Konfigurationen können direkt zum DSP-4 via RS232 Port oder durch das QSC Control Audio Netzwerk via CM16a Amplifier Network Monitor geladen werden. Konfigurationen können gespeichert und wieder geladen werden.

QSC's Signal Manager Software Update vom 2. Mai 2002

Signal Manager (v.4.75) für Ihr DSP: Signal Manager v.4.75
Nach dem Download der Datei, extrahieren Sie den Inhalt mit einem Entpacker wie WinZip direkt auf Ihre Festplatte.
Starten Sie die SETUP.EXE Datei