QSC Audio SC28 Speaker System User Manual


 
14
Preliminary Specification
Dynamic Range (AES-17, -60 dB Method, all sensitivities)
unweighted >104 dB
A weighted >107 dB
Distortion (AES-17, 20 Hz-20 kHz, all sensitivities)
+4 dBu <0.006% THD+N
2 dB below clip (max) <0.006% THD+N
Crosstalk (20 Hz - 20k Hz)
inter-channel (max) >75 dB
Input Impedance
Balanced (nominal) 11k ohms
Unbalanced (nominal) 69k ohms
Common-Mode Rejection
20 Hz - 20k Hz (min) >75 dB
20 Hz - 20k Hz (typ) >80 dB
Input Sensitivities 1.5 V
rms
/6 dBu, 3 V
rms
/12 dBu, 9 V
rms/
21 dBu, or 18 V
rms
/27 dBu
Audio Converters 24-bit, 48 kHz, in and out
Digital Processing 32/40-bit floating-point
Mute infinite attenuation
Throughput Delay 1.4125 milliseconds
Program Inputs 2
Connector Type XLR female, locking
Type Electrically balanced
Grounding All shield terminals connected to chassis
Pinout 1: GND
2: +
3: -
Program Outputs 8
Connector Type XLR male
Type Electrically balanced
Grounding All shield terminals connected to chassis
Pinout 1: GND
2: +
3: -
Controls Rotary encoder knob with push-to-select function
Indicators
Power Blue, front panel
LCD Data Display 2 line x 16 character, backlit, front panel
Input/Output Meters Green, Yellow, Red, front panel
Specifications are subject to change without notice.