320 Appendix C: Technical Specification
PRO1 Live Audio System
Operator Manual
Signal path noise 22Hz to 22kHz unweighted
Inputs 150R terminated.
Dynamic range 22Hz to 22kHz unweighted
Input Output Gain
Output
Noise EIN
DL251 I/O box DL251 I/O box 0dB -85dBu -85dBu
DL251 I/O box DL251 I/O box 45dB -81dBu -126dBu
Surface I/O Surface I/O 0dB -85dBu -85dBu
Surface I/O Surface I/O 45dB -82dBu -127dBu
DL451 I/O box DL451 I/O box 0dB -89dBu -89dBu
DL451 I/O box DL451 I/O box 40dB -87dBu -127dBu
DL431 splitter DL431 A out 0dB -98dBu -98dBu
DL431 splitter DL431 A out 40dB -88dBu -128dBu
DL431 splitter DL431 B out 0dB -98dBu -98dBu
DL431 splitter DL431 B out 40dB -88dBu -128dBu
DL431 splitter DL431 C out -6dB -123dBu -117dBu
DL431 splitter DL451 I/O box 0dB -89dBu -89dBu
DL431 splitter DL451 I/O box 40dB -87dBu -127dBu
Input Output Gain
Maximum
Output
Dynamic
Range
DL251 I/O box DL251 I/O box 0dB +21dBu 106dB
DL251 I/O box DL251 I/O box 45dB +21dBu 103dB
Surface I/O Surface I/O 0dB +21dBu 106dB
Surface I/O Surface I/O 45dB +21dBu 103dB
DL451 I/O box DL451 I/O box 0dB +21dBu 110dB
DL451 I/O box DL451 I/O box 40dB +21dBu 108dB
DL431 splitter DL431 A out 0dB +26dBu 124dB
DL431 splitter DL431 A out 40dB +26dBu 114dB
DL431 splitter DL431 B out 0dB +26dBu 124dB
DL431 splitter DL431 B out 40dB +26dBu 114dB
DL431 splitter DL431 C out -6dB +21dBu 144dB
DL431 splitter DL451 I/O box 0dB +21dBu 110dB
DL431 splitter DL451 I/O box 40dB +21dBu 108dB