QSC Audio manual Basis 922dz, Specifications, Qscaudio.com

BASIS 922dz

Specifications

PERFORMANCE
Dynamic Range (AES-17, -60 dB method, all sensitivities)	In	Out	Thru
Unweighted	> 140 dB	> 112 dB	112 dB
A weighted	> 140 dB	> 115 dB	115 dB
Distortion (20 Hz – 20 kHz, all sensitivities)
+4 dBu (maximum)	< 0.009% THD+N	< 0.009% THD+N	< 0.009% THD+N
2 dB below clip (maximum)	< 0.009% THD+N	< 0.009% THD+N	< 0.009% THD+N
Crosstalk (20 Hz – 20 kHz)
Inter-channel (maximum)	> 75 dB
Inter-channel (typical)	> 90 dB
Intra-channel (maximum)	> 85 dB
Intra-channel (typical)	> 100 dB
Frequency Response
20 Hz – 20 kHz (maximum)	+/- 0.5 dB
20 Hz – 20 kHz (typical)	+/- 0.2 dB
Audio Converters	24 bit, 48 kHz, in and out
Mute	Infinite attenuation
Delay	Standard CobraNet™ latency		Low latency
BASIS to Network	6.917 milliseconds		4.250 milliseconds
Digital input through full DSP chain to CobraNet output
Network to BASIS	6.313 milliseconds		3.646 milliseconds
CobraNet input through full DSP chain to analog output
BASIS to BASIS	7.896 milliseconds		5.229 milliseconds
Digital input through full DSP chain, over CobraNet network,
through full DSP chain, to analog outputs
BASIS in stand-alone mode	2.167 milliseconds (default group delay)
Digital input through full DSP chain to analog outputs
INPUTS/OUTPUTS
Program Inputs	4 AES/EBU pairs (8 channels)
Connector type	25-pin DB-25 style
Type	Electrically balanced
Grounding	All shield terminals connected to chassis
Pinout	AES1+ = pin 7 (L/R) / AES1- = pin 15 (L/R)
	AES2+ = pin 24 (C/SW) / AES2- = pin 23 (C/SW)
	AES3+ = pin 8 (Ls/Rs) / AES3- = pin 16 (Ls/Rs)
	AES4+ = pin 22 (Bsl/Bsr) / AES4- = pin 21 (Bsl/Bsr)
Input Impedance	120Ω (terminated)
Input Sample Rate	AES/EBU sample rate must be 48 kHz and is internally synchronized
Program Outputs	8 outputs
Connector Type	4 HD-15 DataPort connections
Cable Type	QSC DataPort cable, QSC p-n DPC-x (“x” designates cable length in feet)
Available “Stock” Lengths	1, 2, 3, 4, 5, 6, 10, and 20 ft., custom lengths available
Maximum Qualified Length	328 ft. (100 m) using QSC DP cable only / Non QSC cable limited to 6 ft. (audio only)
MONITOR
Control Room Foldback Monitoring
Connector type	5-pin “phoenix style” (a.k.a. “euro style”) detachable terminal blocks
Pinout	1:+(input) / 2:-(input) / 3:CHASSIS GND / 4:-(output) / 5:+(output)
Tap Points	8 internal input / 8 internal output / 8 amplifier (pre-, post-, amplifier) software selectable
Monitor Input
Monitor Signal (unit off)	Unity gain connection, relay bypass
Maximum Level	+21 dBu
Impedance (nominal)	10k ohms
CMRR, 20 Hz – 20 kHz	> 54 dB
Monitor Output
Monitor	Sum of monitor input and signal from internal monitor tap point(s)
Frequency Response (20 Hz – 20 kHz)	+/- 0.5 dB
Distortion (20 Hz – 20 kHz)	< 0.05% at +4 dBu
Noise Floor	> 90 dB
Output Impedance (nominal)	100Ω
Output Load (minimum)	600Ω
Monitor Level
Control Range (nominal)	0 dB to -95.5 dB in 0.5 dB steps
CONTROL INPUTS/OUTOUTS
Relay Outputs	2 discrete floating relay switch outputs
Connector Type	3-pin “phoenix style” (a.k.a. “euro style”) detachable terminal blocks
Configuration	Electromechanical relay
Pinout	1:NC / 2:NO / 3:COM
Switching Capacity (nominal)	1A 30 VDC
Logic Outputs	4 discrete outputs
Connector Type	2-pin “phoenix style” (a.k.a. “euro style”) detachable terminal blocks
Configuration	Single-ended, TTL compatible
Pinout	1:+(Signal) / 2:-(CHASSIS GND)
Omni Inputs	6 discrete inputs for TTL logic, voltage control or passive resistance
Connector Type	2-pin “phoenix style” (a.k.a. “euro style”) detachable terminal blocks
Configuration	Single-ended, ground referenced
Pinout	1:+(Signal) / 2:-(CHASSIS GND)
Normal Operating Range	Reads signals between 0-5 V nominally
Potentiometer Operation	Use 10k ohms for full range
Voltage Tolerance	+/- 48 V
Current Output	0.5 mA with 10k pot (for passive resistive controls)
RS-232 Port	Female DB9 connector (setup and diagnostics purposes only)
QSControl Port	Neutrik Ethercon RJ45 ruggedized data connector
CobraNet Port	Neutrik Ethercon RJ45 ruggedized data connector
Indicators
QSControl Status	Yellow Link, Tx, Rx, front panel / Green Link, Tx, Rx, rear panel
CobraNet Status	Yellow Link, Tx, Rx, front and rear panel
Power	Blue, front panel
Diagnostic	Red, front panel
DataPort Status (port)	Tri-state (red, green, yellow), front panel
LCD Data Display	2 line x 16 character, backlit, front panel
Specifications subject to change without notice.
1675 MacArthur Boulevard • Costa Mesa, CA 92626 • Ph: 800/854-4079 or 714/957-7100 • Fax: 714/754-6174				qscaudio.com

BASIS 922dz - 04/23/07