| SPECIFICATIONS | BASIS 904zz |
|---|
| PERFORMANCE |
Dynamic range
(AES-17, -60 dB method, all sensitivities) |
| Unweighted | > 112 dB |
| A weighted | > 115 dB |
| Distortion (20 Hz - 20 kHz, all sensitivities) |
| +4 dBu (max) | < 0.009% THD+N |
| 2 dB below clip (max) | < 0.009% THD+N |
| Crosstalk (20 Hz - 20 kHz) |
| Inter-channel (max) | > 75 dB |
| Inter-channel (typical) | > 90 dB |
| Intra-channel (max) | > 85 dB |
| Intra-channel (typical) | > 100 dB |
| Frequency response |
| 20 Hz - 20 kHz (max) | +/- 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 |
Network to BASIS
CobraNet input through full DSP chain to analog output | 6.313 milliseconds | 3.646 milliseconds |
| INPUTS/OUTPUTS |
| Program outputs | 16 outputs |
| Connector type | 8 HD-15 DataPort connections |
| Cable type/td> | 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 |
