QSC Audio DSP-4 manual Specifications, qscaudio.com

DSP-4

Specifications

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 weighted
	> 109 dB, 20 Hz to 20 kHz, all other sensitivities, A weighted
Input Impedance	8.3k ohm balanced / 3.7k ohm unbalanced
Commom Mode Rejection	> 50 dB minimum, 20 Hz – 20 kHz > 60 dB typical, 20 Hz – 20 kHz
Input Sensitivity (selectable)	1.5, 4, 9, 18 Vrms 6, 14.5, 21.5, 27.5 dBu 3.5, 12, 19, 25 dBV
Crosstalk (inter-channel within DataPort pair)	> 62 dB separation, 20 Hz - 20 kHz
Audio Input Connectors	Two XLR female (1 for each audio channel) One HD-15 female DataPort* One RS-232 female (PC input)
Audio Output Connectors	Two XLR male (for daisy-chaining each audio channel out)
	One HD-15 male DataPort amplifier connection
Indicators	Front: Power (one blue) Signal (one green)
Contact Closure Inout
Inputs	1 discrete input (pin #9 of RS-232 port)
Configuration	Single-ended input, pull LOW (to GND, pin5) for closure detect
Resistance for closure detect	< 150Ω
Resistance for open detect TTL compatible	> 1.9k ohms
thresholds with 9V DC max input
External Power Requirements	15 VDC, 0.3 A
(DPX-1 recommended)	Required only for PowerLight®, QSC non-DataPort amplifiers, or non-QSC amplifiers
DImensions (HWD)	3.47" (8.81 cm) x 3.35" (8.51 cm) without flanges / 3.75" (9.52 cm) with flanges x 2.05" (5.21 cm)
Weight - Net / Shipping	0.93 lbs (0.42 kg) / 1.3 lb (0.59 kg)
Construction	Steel chassis and back cover

*DataPort input for use with CM16a Amplifier Network Monitor in QSControl audio network systems for remote management of QSC amplifiers and other audio devices PowerLight is a registered trademart of QSC Audio Products Inc.

A remote rack mounting bracket (the DPX-4) 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 eight channels of DSP processing in a three rack unit space.

1675 MacArthur Boulevard • Costa Mesa, CA 92626 • Ph: 800/854-4079 or 714/957-7100 • Fax: 714/754-6174 qscaudio.com

DSP-4 Spec Sheet - 02/21/06