362 Appendix B: Technical Specification
PRO Series Live Audio Systems
Owner’s Manual
PRO Series input and output characteristics
Analogue input characteristics
Analogue output characteristics
Input Type Load Z Gain Max. Level Connector
DL251 I/O Box 10K -25dB to +60dB +26dBu XLR
DL351 I/O Box 10K -25dB to +60dB +26dBu XLR
Surface I/O 10K -25dB to +60dB +26dBu XLR
DL451 I/O Box 10K -25dB to +60dB +26dBu XLR
DL431 Splitter 10K -22.5dB to +65dB +24dBu XLR
Talk mic 600R +15dB to +60dB +6dBu XLR
Monitor 10K 0dB +24dBu XLR
Output Type Source Z Gain Max. Level Connector
DL251 I/O Box 50R 0dB +21dBu XLR
DL351 I/O Box 50R 0dB +21dBu XLR
Surface I/O 50R 0dB +21dBu XLR
DL451 I/O Box 50R 0dB +21dBu XLR
DL431 Splitter
Main
150R 0dB +24dBu XLR
DL431 Splitter
Isolated
75R -6dB +18dBu XLR
Talk mic 50R 0dB +24dBu XLR
Monitor 50R 0dB +24dBu XLR
Headphones 10R +10dB 750mW ¼” Jack