Newbie type question... I want to try bi-wiring my front speakers to see for myself if there is an improvement. I have enough spare cable to do this. My current amp is a Sony DB830. This has Front A (L/R), and Front B (L/R) outputs. Also have a switch to select A, B, or A+B. Should I connect each of the two sets to a single A, or use the A and B outputs for each crossover? The speakers are 773s.