QSC Audio 914LZ User Manual

BASIS 914lz
QSControl.net™ Digital System
QSControl.net, QSC’s next generation network audio system, achieves the seamless integration of the company’s signal transport, 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 914lz
The BASIS platform meets the control, monitoring, signal transport and processing needs of amplification and loudspeaker systems over an Ethernet network. The BASIS 914lz 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 2.354 milliseconds. QSC’s fixed latency DSP is configurable DSP that stays fast and predictable from one configuration to the next.
For more information, visit www.qscontrol.net
© 2009 QSC Audio Products, LLC. All rights reserved. logo, QSContol.net and BASIS are registered trademarks of QSC
Audio Products, LLC in the U.S. Patent and Trademark office and other countries. THX is a trademark of THX Ltd. CobraNet is a trademark of Cirrus Logic, Inc. All other trademarks are the property of their respective owners. Patents may apply or be pending.
QSC, the QSC
Inputs DSP Outputs
Analog CobraNet DataPort CobraNet
4 XLR line level 16 of 32 24 x 24 8(16 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 for professional cinema applications
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, Bessel­Thomson high and low-pass
• Crossovers – Linkwitz-Riley, Butterworth, Bessel-Thomson in-phase, Bessel­Thomson 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
BASIS 914lz
PERFORMANCE
Dynamic Range (AES-17, -60 dB method, all sensitivities) In Out Thru Unweighted > 112 dB > 112 dB 110 dB A weighted > 115 dB > 115 dB 113 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 7.104 milliseconds 4.438 milliseconds Analog 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 8.083 milliseconds 5.417 milliseconds Analog input through full DSP chain, over CobraNet network, through full DSP chain, to analog outputs BASIS in stand-alone mode 2.354 milliseconds (default group delay) Analog input through full DSP chain to analog outputs
INPUTS/OUTPUTS Program Inputs 4 inputs
Connector type XLR/TRS combo Type Electrically balanced Grounding Shell and shield terminals connected to chassis Pinout 2-Tip:+ / 3-Ring:- / 1-Sleeve: shield Input Impedance (nominal) Balanced: 10k ohms / Unbalanced: 10k ohms Common-mode Rejection 20 Hz – 20 kHz (minimum): > 54 dB / 20 Hz – 20 kHz (typical): > 60 dB Input Sensitivities (variable) Vrms: 1.5, 3, 9, 18 / dBu: 5.7, 11.8, 21.3, 27.3 / dBV: 3.5, 9.5, 19.1, 25.1
Program Outputs 16 outputs Connector Type 8 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)
Specifications
CONTROL INPUTS/OUTOUTS
Omni Inputs 2 discrete inputs for T TL 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 (set and diagnostics purposes only) QSControl Port Neutrik Ethercon RJ45 ruggedized data connector CobraNet Port Neutrik Ethercon R J45 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
BASIS 914lz - 07/09/09
qscaudio.com
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