Qsc - Dsp4Spec 电路图.pdf

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1、A D V A N C E D S Y S T E M S P R O D U C T S With more than three decades of experience pioneering cutting edge audio products, QSC raises the bar once again with the DSP-4 Digital Signal Processing Module. This compact module offers two channels of independent DSP and attaches to the back of most

2、2-channel DataPort- equipped QSC amplifierswithout occupying any additional rack space. Capitalizing on the success of our DSP-3, the second-generation DSP-4 provides several enhancements in functionality and performance while also incorporating the universally popular XLR balanced connectors. These

3、 enhancements include new A/D and D/A converters for improved signal-to-noise performance and upgraded software that significantly increases the units operational characteristics. Optimize Your Sound With DSP From QSC Powerful Simple to install, compact, and featuring “set-and-forget” convenience, t

4、he DSP-4s powerful processor enables you to perform a wide range of signal processing functions;and with its new A/D and D/A converters,its noise floor improves. Software refinements for the DSP-4 (which also retrofit to earlier QSC DSP products) include the addition of a true power limiting feature

5、. Further, preset selection is now available via the contact closure input. Whether you need speaker crossovers,EQ,time delay,or subsonic filters,the DSP-4 is as flexible as your systems needs. Each channel includes: Crossover filteringCompression and limiting Multiple Parametric EQsPrecision attenu

6、ation Shelf filteringMixing Multiple Delays (up to 910 ms) Tone and noise generation Configurable The DSP-4s processing horsepower is dynamically assignable so you are not limited by a fixed signal chain. Simply use QSCs powerful PC-based Signal Manager software to easily configure multiple processi

7、ng functions and signal flow with “drag-and-drop”tools. Cost-effective The power and flexibility of the DSP-4 eliminates the need for expensive outboard processing gear, reducing cost and installation time for almost any application. The compact DSP-4 also plugs directly into the back of most QSC Da

8、taPort-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 email: Save space and weight by mounting the DSP-4 onto the back of most 2-channel DataPort-equi

9、pped QSC amplifiers. Or use multiple DSP-4s as a stand-alone,rack-mounted DSP solution. D i g i t a l S i g n a l P r o c e s s o r RadioFans.CN 收音机爱 好者资料库 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

10、 muted to prevent driver damage Host interface via RS-232 or QSControl Audio Network System via CM16a Amplifier Network Monitor Electronically balanced XLR inputs Contact closure to trigger preset changes Post-DSP output signal for daisy-chaining DataPort pass-through compatible with QSControl Selec

11、table input sensitivity: 1.5,4,9,18 Vrms; 6,14.5,21.5,27.5 dBu; 3.5,12,19,25 dBV Output signal gain Software “Drag-and-drop”configuration software DSP processing power and memory is dynamically assigned to signal processing functions eliminating the limitations imposed by fixed signal chain designs

12、Graphical representation of DSP resources Firmware upgrades via RS-232 Hard copy printout of signal flow layout or parameter settings System Requirements Windows 98,NT4 (SP6),and 2000 (SP1)* SVGA monitor 800 x 600 (min.);1024 x 768 recommended CD-ROM drive 32 MB RAM (min.) 10 MB free hard disk space

13、 (min.) Available RS-232 COM port Male-to-female 9-pin serial cable (for programming) * Windows Me not supported ADDITIONAL FEATURES Multiple Parametric Filters,assignable anywhere in the signal chain: Variable FrequencyBypass all EQs Variable GainAdd EQ Variable QDelete EQ Bypass one EQShow Respons

14、e Multiple Delays,assignable anywhere in the signal chain: 20.83 sec Incremental 910 msec Maximum (total of all delays) Compressor,assignable anywhere in the signal chain: GainRelease Time ThresholdShow Response RatioBypass Attack Time Output Peak Limiter,assignable anywhere in the signal chain: Gai

15、nRelease Time ThresholdShow Response Attack TimeBypass 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 EQDelete EQ Bypass all EQsShow

16、Response Add EQCutoff Frequency High and Low-Pass Shelf Filters,assignable anywhere in the signal chain: Variable Corner FrequencyBypass all EQs Variable GainAdd EQ Variable QDelete EQ Bypass one EQShow Response Signal Mute Attenuation: 0.1 dB steps Mix Post Crossover Audio(21 Mixer) Signal Splitter

17、 Built-in Noise Generator(Pink Two-channel DCA Seriesrequires external power supply) PowerLight 2 Series The following models require a Remote Rack Mounting Bracket: Full Feature (DPX-2 cable required)Reduced Feature Set Four-channel CX SeriesMX Four-channel DCA SeriesUSA PowerLight SeriesPLX Eight-

18、channel CX SeriesRMX Non-QSC amplifiers The DSP is configured with an easy-to-use software interface. Signal processing icons from the toolbar are dropped onto the workspace and the signal path is routed with simple drawing tools. SIGNAL MANAGER COMPATIBLE AMPLIFIER MODELS CharacteristicsSpecificati

19、ons AUDIO CONVERTERS24 bit,48 kHz FREQUENCY RESPONSE3 dB below full scale input voltage XLR Output20 Hz to 10 kHz 0.3 dB 20 Hz to 20 kHz 0.7 dB DataPort20 Hz to 20 kHz 0.2 dB DISTORTION104 dB 20 Hz to 20 kHz, 1.5V sensitivity,unweighted AES-17 -60 dB METHOD 106 dB 20 Hz to 20 kHz, all other sensitiv

20、ies,unweighted 107 dB 20 Hz to 20 kHz, 1.5V sensitivity,A weighted 109 dB 20 Hz to 20 kHz, all other sensitivies,A weighted INPUT IMPEDANCE 8.3 K Ohm balanced 3.7 K Ohm unbalanced COMMON-MODE REJECTION50 dB minimum 20 Hz to 20 kHz 60 dB typical 20 Hz to 20 kHz INPUT SENSITIVITY1.5,4,9,18 Vrms (selec

21、table)6,14.5,21.5,27.5 dBu 3.5,12,19,25 dBV CROSSTALK 62 dB separation,20 Hz to 20 kHz (inter-channel w/in DataPort pair) AUDIO INPUT CONNECTORSTwo XLR female (1 for each audio channel) One HD-15 female DataPort* One RS-232 female (PC input) Specifications subject to change. CharacteristicsSpecifica

22、tions AUDIO OUTPUT CONNECTORSTwo XLR male (for daisy-chaining each audio channel out) One HD-15 male DataPort amplifier connection INDICATORSFRONT: Power (one blue) Signal (one green) CONTACT CLOSURE INPUT Inputs 1 discrete input (pin #9 of RS-232 port) Configuration Single-ended input,pull LOW (to

23、GND,pin5) for closure detect Resistance for closure detect 1.9 K Ohms TTL compatible thresholds with 9V DC max input EXTERNAL POWER REQUIREMENTS15 VDC,0.3 A (DPX-1 recommended)Required only for PowerLight, QSC non-DataPort amplifiers, V2 DataPort (audio only) models, or non-QSC amplifiers. DIMENSION

24、S Height3.47 (8.81 cm) Width3.35 (8.51 cm) without flanges 3.75 (9.52 cm) with flanges Depth2.05 (5.21 cm) WEIGHT.93 lbs (.42 kg) net 1.3 lbs (.59 kg) shipping CONSTRUCTIONSteel chassis and back cover *DataPort input for use with CM16a Amplifier Network Monitor in QSControl audio network systems for

25、 remote management of QSC amplifiers and other audio devices. DSP-4 SPECIFICATIONS DSP-4 Spec Sheet 091802 A Remote Rack Mounting Bracket is available to use with PowerLight,4-channel QSC amplifiers,or for non-DataPort- equipped amplifiers. Designed to be bolted to the rear of an amplifier rack,up to four modules can be mounted to each panel,providing up to eightchannels of DSP processing in a three rack-unit space.