QSC DSP-3 เครื่องประมวลผลสัญญาณดิจิตอล Digital Processor
| DSP-3 FEATURES |
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Hardware |
- Two independent channels of DSP
- 48kHz, 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 gain preset changes
- Post-DSP output signal for daisy-chaining
- Peak, RMS and Clip meter displays
- Selectable input sensitivity: 1.5, 4, 9, 13 Vrms; 6, 14.5, 21.5, 24.5 dBu; 3.5, 12, 19, 22.2 dBV
- DataPort "pass-through" compatible with QSControl
- Selectable output sensitivity: 4 Vrms or 6 Vrms
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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 layout or parameter settings
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DSP-3 SPECIFICATIONS
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Frequency Response
Euro Input
DataPort |
20 Hz to 10 kHz ± 0.3 dB
20 Hz to 20 kHz ± 0.7 dB
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 13V input sensitivities |
| Common-mode Rejection |
>50 dB, 20 Hz–20 kHz typical
>40 dB @ 20 kHz worst case |
| Input Sensitivity (selectable) |
1.5, 4, 9, 13 Vrms
6, 14.5, 21.5, 24.5 dBu
3.5, 12, 19, 22.2 dBV |
| Output Sensitivity |
4, 6 Vrms
14.5, 18 dBu
12, 15.5 dBV |
| Crosstalk (inter-channel w/in DataPort pair) |
>75 dB separation, 20 Hz to 20 kHz |
| Input Connectors |
Two 3-pin Euros (1 for each audio channel)
One HD-15 female DataPort*
One RS-232 female (PC input)
One Power Jack (Required only for PowerLight, QSC non-DataPort amplifiers, or non-QSC amplifiers, using remote rack mounting bracket) |
| 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 |
15 VDC, 0.4 A (Required only for PowerLight, QSC non-DataPort amplifiers, or non-QSC amplifiers, using remote rack mounting bracket) |
| 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 |
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