User Guide

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)
CONTROL INPUTS/OUTOUTS
Omni Inputs 2 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 (set 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
BASIS 914lz
Specifications
qscaudio.com
Specifications subject to change without notice.
1675 MacArthur Boulevard • Costa Mesa, CA 92626 • Ph: 800/854-4079 or 714/957-7100 • Fax: [phone]
BASIS 914lz - 07/09/09