QSC DSP-3' Manuel utilisateur
ADVANCED SYSTEMS PRODUCTS
After three decades of developing pioneering
audio products and systems, QSC raises the bar
once again, setting a new standard in signal
processing with the new DSP-3 Digital Signal
Processing Module.
The DSP-3’s two channels of independent signal
processing deliver more power, flexibility, and
features—in short, more of everything you really
need in a DSP—for less. Simple to install and
compact, the DSP-3 is the advanced and
affordable digital signal processing solution for
your audio system.
Optimize Your Sound With DSP From QSC
Powerful
The DSP-3’s powerful processor allows you to perform a wide range of signal
processing functions. Whether you need speaker crossovers,EQ,time delay,
or subsonic filters,the DSP-3 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 or noise generation
Configurable
The DSP-3’s processing horsepower is dynamically assignable so you are not
limited by a fixed signal chain. Simply use the powerful PC-based Signal
Manager software to easily configure multiple processing functions and
signal flow with“drag-and-drop”tools.
Cost-effective
The power and flexibility of the DSP-3’s eliminates the need for expensive
outboard processing gear,reducing cost and installation time for almost
any application. The compact DSP-3’s also plug directly to the back of
most QSC DataPort-equipped amplifiers for use in systems where rack
space is a premium.
Hear the Power of Technology.
1675 MacArthur Boulevard
Costa Mesa, CA 92626
Ph: 800/854-4079 or 714/957-7100
Fax: 714/754-6174
www.qscaudio.com
email: [email protected]
Savespaceand weightbyplugging theDSP-3into thebackof
mostDataPort-equipped QSCamplifiers. Oruse multiple DSP-3s
asastand-alone,rack-mountableDSPsolution.
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
•
Host interface via RS-232 or QSControl Audio Network System*
via CM16a Amplifier Network Monitor
•
Electronically balanced inputs
•
Contact closure to trigger preset changes
•
Post-DSP output signal for daisy-chaining
•
Peak,RMS and Clip meter displays
•
DataPort“pass-through”compatible with QSControl
•
Selectable input sensitivity: 1.5,4,9,18Vrms;
6,14.5,21.5,27.5 dBu; 3.5,12,19,25 dBV
Software
•
“Drag-and-drop”configuration software
•
DSP processing power and memory dynamically assignable to
signal processing functions
•
Graphical representation of DSP resources
•
Firmware upgrades downloadable via RS-232
•
Hard copy printout of configuration description and parameter settings
ADDITIONAL FEATURES
•
Multiple Parametric Filters,assignable anywhere in the signal chain:
Variable Frequency Bypass all EQs
Variable Gain Add EQ
Variable Q Delete EQ
Apply Bypass Show Response
•
Multiple Delays,assignable anywhere in the signal chain
20.83 µsec Incremental
910 msec Maximum
•
Dynamics Processor with Compressor and Expander,assignable
anywhere in the signal chain:
Gain ReleaseTime
Threshold Show Response
Ratio Bypass
AttackTime
•
Output Peak Limiter, assignable anywhere in the signal chain:
Gain ReleaseTime
Threshold Show Response
AttackTime 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
Apply Bypass Delete EQ
Bypass all EQs Show Response
Add EQ
•
Highand Low-PassShelfFilter,assignable anywherein the signal chain:
Variable Corner Frequency Bypass all EQs
Variable Gain Add EQ
Variable Q Delete EQ
Apply Bypass 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-inVariable FrequencyTone Generator
•
Signal Polarity Reversal
•
Frequency Response readout after each filter
•
Clip and Protect Indication at any point in the signal chain
SIGNAL PROCESSING FUNCTIONS
*Availablein early 2001.
DSP-3 CONFIGURATIONS
Advanced“Drag-and-Drop”Software Configuration
DSP configuration is made simple with a PC-based“drag-and-drop”
software program called Signal Manager. Users can access a DSP
“toolbox”and simple drawing tools to configure processing functions
and signal flow. DSP processing power and memory is dynamically
assignable to signal processing functions and any combination of
functions may be configured until the total capacity is used. DSP
resources are graphically displayed at the bottom of the screen.
Configurations can be downloaded directly to the DSP-3 via an RS-232
serial port or through a QSControl Audio Network System* via CM16a
Amplifier Network Monitor for added simplicity. The software package
also offers real-time control and set-and-forget convenience.
Configurations can be saved and recalled for future use.
The DSP-3 mounts directly to the back of these amplifier models via the
DataPort:
•
Two-channel CX Series
•
Two-channel DCA Series
•
PowerLight 2 Series
The following models require a Remote Rack Mounting Bracket:
Full Feature Without Power Limiting
•
Four-channel CX Series
•
MX
•
Four-channel DCA Series
•
USA
•
PowerLight Series
•
PLX
•
RMX
•
Non-QSC amplifiers
Whetheryouneed
speakercrossovers,
EQ,timedelay,or
subsonicfilters,the
DSP-3isas flexibleas
yoursystem’s needs.
SIGNAL MANAGER
COMPATIBLE AMPLIFIER MODELS
*Availablein early 2001.
Characteristics Specifications
FREQUENCY RESPONSE
Euro Input 20 Hz to 10 kHz ± 0.3 dB
20 Hz to 20 kHz ± 0.7 dB
DataPort 20 Hz to 20 kHz ± 0.2 dB
DISTORTION <0.01%THD+N @ +4 dBu
DYNAMIC RANGE UNWEIGHTED >93 dB,20 Hz to 20 kHz
for 1.5,4,9V input sensitivities
>88 dB,20 Hz to 20 kHz
for 18V input sensitivities
COMMON-MODE REJECTION >50 dB,20 Hz–20 kHz typical
>40 dB @ 20 kHz worst case
INPUT SENSITIVITY 1.5,4,9,18Vrms
(selectable) 6,14.5,21.5,27.5 dBu
3.5,12,19,25 dBV
CROSSTALK >75dBseparation,20Hzto 20 kHz
(inter-channel w/in DataPort pair)
INPUT CONNECTORS Two3-pin Euros
(1foreach audio channel)
One HD-15 female DataPort*
One RS-232 female (PC input)
One Power Jack
Requiredonly forPowerLight,
QSCnon-DataPort amplifiers,or
non-QSCamplifiers,using
remoterack mountingbracket
Characteristics Specifications
OUTPUT CONNECTORS Two 3-pin Euros
(for daisy-chaining each audio
channel out)
One HD-15,male
amplifier connection
INDICATORS FRONT:
Power (one blue)
Signal (one green)
EXTERNAL POWER REQUIREMENTS 15VDC,0.4 A
Requiredonly forPowerLight,
QSCnon-DataPort amplifiers,or
non-QSCamplifiers,using
remoterack mountingbracket
DIMENSIONS 3.49" (1.37 cm) height
3.33" (1.31 cm) width
without flanges
4.76" (1.48 cm) width
with flanges
1.21" (0.48 cm) depth
WEIGHT 0.6 lbs (0.27 kg) net
1 lb (0.45 kg) shipping
CONSTRUCTION Steel chassis and back cover
*DataPort inputforuse with CM16aAmplifier NetworkMonitorin QSControlaudionetwork
systemsforremote managementofQSC amplifiers andother audio devices.
DSP-3 SPECIFICATIONS
ARemoteRack MountingBracketisavailable forPowerLight,4-channel QSCamplifiers,orfornon-DataPort-
equippedamplifiers. Designedto beboltedto the rearofan amplifierrack,uptofour modules canbe mounted
toeachpanel,providingupto eight channelsofDSP processingina threerack-unitspace.
Specificationssubjecttochange
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