QSC DSP-3 เครื่องประมวลผลสัญญาณดิจิตอล digital signal processor , เครื่องปรับแต่งสัญญาณเสียง , อุปกรณ์ปรับแต่งสัญญานเสียง

• 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

• "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

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 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