PERFORMANCE
Dynamic Range
(AES-17, -60 dB method, all sensitivities)
In
Out
Thru
Unweighted
> 110 dB
> 112 dB
108 dB
A weighted
> 113 dB
> 115 dB
111 dB
Distortion
(20 Hz – 20 kHz, all sensitivities)
Gain = 0 – 30 dB
< 0.008% THD+N
< 0.009% THD+N
< 0.008% THD+N
Gain > 30 dB
< 0.05% THD+N
< 0.009% THD+N
< 0.05% 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
8 inputs
Connector type
3-pin “phoenix style” (a.k.a. “Euro style”) detachable terminal blocks
Type
Electrically balanced
Grounding
All shield terminals connected to chassis
Pinout
1:+ / 2:- / 3:CHASSIS GND
Input Impedance (nominal)
Balanced: 6.81k ohms / Unbalanced: 13.6k ohms
Common-mode Rejection
20 Hz – 20 kHz (minimum): > 54 dB / 20 Hz – 20 kHz (typical): > 60 dB
E.I.N. (maximum)
150
Ω
, 30 dB: -124.5 dBu / 150
Ω
, 60 dB: -125.0 dBu
Input Sensitivities (variable)
Vrms: 0.9 mV to 15.46 V / dBu: -62.2 to +26 dBu / dBV: -64.4 to +23.7 dBV
Phantom Power (per IEC 1938 [1996])
+48 V (software selectable)
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)
100
Ω
Output Load (minimum)
600
Ω
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
Signal Presence
Tri-state (red, green, yellow), front panel
BASIS 922uz
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: 714/754-6174
BASIS 922uz - 06/18/08
