BASIS 914lz - TMP Pro Distribution
BASIS 914lz Digital System, QSC’s next generation network audio
system, achieves the seamless integration of the
company’s signal transport, control, processing, and
monitoring technologies. 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 platform.
DSP Outputs
CobraNet DataPort
16 of 32
24 x 24
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.
• Ethernet controllable
4 XLR line level 32
• Amplifier and loudspeaker control, monitoring and protection
• Configurable DSP functions and signal paths
• Fixed latency DSP engine
• 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:
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.
• Gain controls – any channel count, up to 24
CobraNet is a trademark of Cirrus Logic, Inc.
THX is a trademark of THX Ltd.
8(16 channels) Features
Through, 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.
For more information, visit
• Matrix mixer – any size, up to 24 x 24
• Automixers – gain sharing
• Routers – any size, up to 24 x 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
Dynamic Range (AES-17, -60 dB method, all sensitivities)
Unweighted A weighted Distortion (20 Hz – 20 kHz, all sensitivities)
+4 dBu (maximum) 2 dB below clip (maximum) Crosstalk (20 Hz – 20 kHz)
Inter-channel (maximum) Inter-channel (typical) Intra-channel (maximum) Intra-channel (typical) Frequency Response
20 Hz – 20 kHz (maximum) 20 Hz – 20 kHz (typical) Audio Converters Mute Delay BASIS to Network
Analog input through full DSP chain to CobraNet output Network to BASIS
CobraNet input through full DSP chain to analog output BASIS to BASIS
Analog input through full DSP chain, over CobraNet network,
through full DSP chain, to analog outputs
BASIS in stand-alone mode
Analog input through full DSP chain to analog outputs INPUTS/OUTPUTS Program Inputs Connector type Type Grounding Pinout Input Impedance (nominal) Common-mode Rejection Input Sensitivities (variable) Program Outputs
Connector Type Cable Type Available “Stock” Lengths Maximum Qualified Length CONTROL INPUTS/OUTOUTS
Omni Inputs Connector Type Configuration Pinout Normal Operating Range Potentiometer Operation Voltage Tolerance Current Output RS-232 Port
QSControl Port
CobraNet Port Indicators
QSControl Status CobraNet Status Power Diagnostic DataPort Status (port) LCD Data Display Specifications
> 112 dB > 115 dB Out
> 112 dB > 115 dB Thru
110 dB
113 dB
< 0.009% THD+N < 0.009% THD+N < 0.009% THD+N < 0.009% THD+N < 0.009% THD+N
< 0.009% THD+N
+/- 0.5 dB
+/- 0.2 dB
24 bit, 48 kHz, in and out
Infinite attenuation
Standard CobraNet™ latency 7.104 milliseconds Low latency
4.438 milliseconds
6.313 milliseconds 3.646 milliseconds
8.083 milliseconds 5.417 milliseconds
> 75 dB
> 90 dB
> 85 dB
> 100 dB
2.354 milliseconds (default group delay)
4 inputs
XLR/TRS combo
Electrically balanced
Shell and shield terminals connected to chassis
1-Tip:+ / 2-Ring:- / 3-Sleeve: shield
Balanced: 10k ohms / Unbalanced: 10k ohms
20 Hz – 20 kHz (minimum): > 54 dB / 20 Hz – 20 kHz (typical): > 60 dB
Vrms: 1.5, 3, 9, 18 / dBu: 5.7, 11.8, 21.3, 27.3 / dBV: 3.5, 9.5, 19.1, 25.1
16 outputs
8 HD-15 DataPort connections
QSC DataPort cable, QSC p-n DPC-x (“x” designates cable length in feet)
1, 2, 3, 4, 5, 6, 10, and 20 ft., custom lengths available
328 ft. (100 m) using QSC DP cable only / Non QSC cable limited to 6 ft. (audio only)
2 discrete inputs for TTL logic, voltage control or passive resistance
2-pin “phoenix style” (a.k.a. “euro style”) detachable terminal blocks
Single-ended, ground referenced
1:+(Signal) / 2:-(CHASSIS GND)
Reads signals between 0-5 V nominally
Use 10k ohms for full range
+/- 48 V
0.5 mA with 10k pot (for passive resistive controls)
Female DB9 connector (set and diagnostics purposes only)
Neutrik Ethercon RJ45 ruggedized data connector
Neutrik Ethercon RJ45 ruggedized data connector
Yellow Link, Tx, Rx, front panel / Green Link, Tx, Rx, rear panel
Yellow Link, Tx, Rx, front and rear panel
Blue, front panel
Red, front panel
Tri-state (red, green, yellow), front panel
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 - 04/23/07
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