Hello everyone. I just picked up a clean Extron xpa2003c with the 4/8 ohm outputs. I understand how to modify the RCA cable ends to include short jumpers my only, newbie to these amplifier question is: As there are 3 3pin/pole inputs (with blue connectors) on the back, do I put one RCA cable to the #1 blue input connector and the other RCA cable to #2 blue input connector for stereo? Thanks for any help as I'm looking forward to trying this amp out!