Banana plugs on my right front speaker touched and apparently have done some damage to my Pioneer vsx-70 receiver. The receiver is about 10 weeks old, and has barely been used.
I have DefTech ProCinema 1000 speakers and a Bic F-10 subwoofer attached. I just bought Energy CF-70's, which I planned to use as Zone 2 for music only. But to test the speakers, I moved the front speaker wires from the DefTech's to the CF-70's.
Sounded great at first. But fiddling with my subwoofer must have jarred the right CF-70, which was right next to it, and pushed the plugs together. This isn't possible on the DefTech's, which force the plugs out parallel to one another.
Anyway, now any speaker I try on that channel crackles badly.

Since I screwed up, not sure if this will be covered under warranty. And even if it is, according to Best Buy, it should take about 3 weeks to get the receiver back.
I'm new to home theater, and have limited audio skill set. I've learned a lot reading this forum (evidently not enough - I'm going to replace these Monoprice banana plugs with rubber coated plugs), and I'm hoping some experts here can advise me how to resolve this.
- Is this fixable? Or, have I completely torched the receiver, and need to replace it with a new one?
- Is this typically covered under warranty? Or should I just look for a service center nearby that can get it done more quickly, though I'll have to pay?
- Is this something easy to fix - maybe something I can do myself?
Any help would be greatly appreciated.