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QSControl.net™

BASIS 922dz


THX Approved
BASIS 922dz Front Panel
Front Panel
BASIS 922dz Rear Panel
Rear Panel


QSControl.net, QSC's next generation network audio system, achieves the seamless integration of the company's control, processing, and monitoring technologies. QSControl.net brings together QSC's digital, power amplification and loudspeaker products into a unified system that enables the user to administrate it all via a fully integrated graphical user interface. The new generation BASIS devices are designed to operate under the company's QSControl.net platform.

BASIS 922dz


The BASIS platform meets the control, monitoring, signal transport and processing needs of amplification and loudspeaker systems over an Ethernet network. The BASIS 922dz units combine three distinct QSC technologies within a single hardware unit. Amplifier and loudspeaker control, monitoring and protection, configurable DSP, and CobraNet™ audio transport are seamlessly integrated into one powerful single RU package.

Through QSControl.net, QSC's BASIS and next-generation RAVE and DSP products can be networked together and controlled from a single software interface. In addition, multiple networked computers can be set up to control and monitor all of the units simultaneously.

Fixed Latency DSP


Users of most other configurable DSP systems are familiar with a variable latency inherent in the processing configuration. Add more processing blocks and you also add delay, whether you want it or not. QSC's DSP engine is unique in having a short and fixed processing latency through the DSP subsystem. When the A/D and D/A converters are included, the total analog-to-analog latency of a single unit is a negligible 2.167 milliseconds. QSC's fixed latency DSP is configurable DSP that stays fast and predictable from one configuration to the next.

INPUTS DSP OUTPUTS
AES/EBU CobraNet   DataPort CobraNet
8 digital 16 of 32 24x24 4(8 channels) 32


FEATURES

  • Amplifier and loudspeaker control, monitoring and protection
  • Configurable DSP functions and signal paths
  • Fixed latency DSP engine
  • Ethernet controllable
  • CobraNet audio transport with new intuitive GUI
  • Two Ethernet ports – CobraNet and control can be run over a single cable
    or be divided between the two ports. The CobraNet port is 100Base-T.
    The control port is 10Base-T.
  • Each unit can store eight design configurations that can be changed on the fly
  • Snapshots can recall config or block and/or parameter settings
  • THX approved
  • DSP functions include, but are not limited to:
  • Matrix mixer – any size, up to 24 x 24
  • Automixers – gain sharing
  • Routers – any size, up to 24 x 24
  • Gain controls – any channel count, up to 24
  • Graphic equalizers
  • Filters – high-pass, low-pass, all-pass, shelf, parametric, parametric shelf, Butterworth high and low-pass, Linkwitz-Riley high and low-pass, Bessel-Thomson high and low-pass
  • Crossovers – Linkwitz-Riley, Butterworth, Bessel-Thomson in-phase, Bessel-Thomson symmetrical, 2-way, 3-way, and 4-way general purpose adjustable
  • Compressors, peak limiters, AGC's, gates, dynamics processor
  • Duckers – up to 8 channels, up to 60 seconds fade in and fade out times, priority mix
  • Pink noise, white noise, sine generators
  • Delays
  • Macros – user-definable custom blocks with password protection


QSCONTROL.NET


DOCUMENTS

BASIS 922dz Specifications (PDF 202K)

BASIS 922dz User Manual (PDF 1.9MB)
WCP User Manual (PDF 349K)

SOFTWARE

Venue Manager
QSCAD

ACCESSORIES

WCP-1 Wall Control Plate with Rotary Potentiometer
WCP-2 Wall Control Plate with Rotary BCD Switch

(see WCP User Manual for more information)
SPECIFICATIONS BASIS 922dz

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 (max) < 0.009% THD+N < 0.009% THD+N < 0.009% THD+N
2 dB below clip (max) < 0.009% THD+N < 0.009% THD+N < 0.009% THD+N
Crosstalk (20 Hz - 20 kHz)
Inter-channel (max)
 > 75 dB
Inter-channel (typ)
 > 90 dB
Intra-channel (max)
 > 85 dB
Intra-channel (typ)
 > 100 dB
Frequency response
20 Hz - 20 kHz (max)
 +0.3/-1.0 dB
20 Hz - 20 kHz (typ) +/- 0.3 dB
Audio converters 24 bit, 48 kHz, in and out
Mute Infinite attenuation
Delay Standard CobraNet™ latency Low Latency
BASIS to Network
Digital input through full DSP chain to CobraNet output		 6.917 milliseconds 4.250 milliseconds
Network to BASIS
CobraNet input through full DSP chain to analog output		 6.313 milliseconds 3.646 milliseconds
BASIS to BASIS
Digital input through full DSP chain, over CobraNet network, through full DSP chain, to analog outputs		 7.896 milliseconds 5.229 milliseconds
BASIS in stand-alone mode
Digital input through full DSP chain to analog outputs		 2.167 milliseconds (default group delay)  

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
 120 ohms (terminated)
Input sample rate
AES/EBU sample rate must be 48 kHz and is internally synchronized
Program outputs 8
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)
Freq. resp. (20 Hz - 20 kHz)
 +/- 0.5 dB
Distortion (20 Hz - 20 kHz)
 < 0.05% @ +4 dBu
Noise floor
 > 90 dB
Output impedance (nom)
 100 ohms
Output load (min)
 600 ohms
Monitor level
Control range (nom) 0 dB to -95.5 dB in 0.5 dB steps

CONTROL INPUTS/OUTPUTS
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 (nom)
 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

CHASSIS DIMENSIONS & WEIGHT

Dimensions (HxWxD) 1.72" (1RU) x 17.13" x 14.84" (43.6 mm x 435.6 mm x 376.9 mm)
Weight 10.6 lbs / 4.8 kg


Specifications subject to change without notice

QSControl.net is a trademark of QSC Audio Products, LLC
THX is a trademark of THX, Ltd.
CobraNet is a trademark of Cirrus Logic, Inc.

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QSC and the QSC logo are registered trademarks of QSC Audio Products, LLC in the U.S. Patent and Trademark office and other countries. All other trademarks are the property of their respective owners. Patents may apply or be pending.