QSC Audio DSP-4 user manual

Summary of the content on the page No. 1

DSP-4
Digital Signal Processor
This compact module offers two channels of independent DSP and Configurable
attaches to the back of most 2-channel DataPort equipped QSC The DSP-4’s processing horsepower is dynamically assignable so you
amplifiers—without occupying any additional rack space. are not limited by a fixed signal chain. Simply use QSC’s powerful PC-
based Signal Manager software to easily configure multiple processing
Capitalizing on the success of our DSP-3, the second-generation

Summary of the content on the page No. 2

Signal Processing Functions and Additional Features DSP-4 Multiple Parametric Filters, assignable anywhere in the signal chain: Hardware Variable Frequency Bypass all EQs Two independent channels of DSP Variable Gain Add EQ Variable Q Delete EQ 48 kHz, 24-bit converters Bypass one EQ Show Response No turn on pops or “zipper” noise Multiple Delays, assignable anywhere in the signal chain: 20.83 µsec incremental If the memory or hardware fails, unit turns on muted to prevent 910 m

Summary of the content on the page No. 3

Configurations The DSP is configured with an easy-to-use software interface. Signal Manager Signal processing icons from the toolbar are dropped onto the Advanced “Drag and Drop” Software Configuration workspace and the signal path is DSP configuration is made simple with a PC-based “drag- routed with simple drawing tools. and-drop” software program called Signal Manager. Users can access a DSP “toolbox” and simple drawing tools Compatible Amplifier Models to configure processing function

Summary of the content on the page No. 4

Specifications DSP-4 Audio Converters 24 bit, 48 kHz Frequency Response 3 dB below full scale input voltage XLR Output 20 Hz -10 kHz, ± 0.3 dB / 20 Hz - 20 kHz, ± 0.7 dB DataPort 20 Hz - 20 kHz, ± 0.2 dB Distortion < 0.02% THD+N at +4 dBu Throughput Delay 1.00 milliseconds (A/D – DSP – D/A) Dynamic Range > 104 dB, 20 Hz to 20 kHz, 1.5V sensitivity, unweighted AES-17 -60 dB Method > 106 dB, 20 Hz to 20 kHz, all other sensitivities, unweighted > 107 dB, 20 Hz to 20 kHz, 1.5V sensitivity, A