Here's my current setup. Sony STR-DE845 receiver that has A & B speaker terminals. Bose Acoustimass 7 speakers (8ohm) on the A terminals. Boston Acoustics Soundware outdoor speakers (8ohm) on B terminals I want to add a second set of the BA speakers outside, wired parallel if possible...

Have been getting "pops" from various speakers for a few days, now receiver is displaying the "protector" message. Am following Sony's troubleshooting advice, but it's beginning to look that I will end up at their "service may be required" point. This receiver is nearly 11 years old, and before...