My question is, is it worth taking this receiver to the closest Pioneer certified service center and verifying that there is something wrong with the receiver and THEN hoping to get a new receiver out of the warranty, or is it a possibility that there was something that went wrong with my speakers?
To recap my problem:
A few months ago I made the switch from the Energy RC Micro 5.1 set to the Pioneer Andrew Jones line of speakers (FS-51, C-21, BS-21) which this receiver should have no problem driving.
I live in a condo, so I sincerely doubt I crank my speakers up to too great a volume to blow my speakers. (-26 dB at the most)
One day while streaming an episode of Family Guy, my speakers started producing a siren-like whining.
Doing a factory reset on the receiver eliminates the sound, and the speakers are functional, but once they are calibrated, the siren-like whining returns.
Swapping out my floorstanders for the bookshelves that were brand new (I hadn't even hooked them up before) and calibrating them, produced the same siren-like whining.
I've triple checked that my DIY speaker wires aren't poking out all over the place and have secure connections.
There shouldn't be any interference from anything else on the circuit, the nearby cable modem is grounded into my surge protector.
I've tried several different HDMI cables, and Toslink, and it yields the same result once the speakers are calibrated.
Connecting my PS3 directly to the TV and not using my speakers / receiver at all eliminates the sound.
Sounds like the receiver in my opinion, but I'm not entirely sure of myself. These speakers are the latest thing I've added into my home theater and once I added them I created new cables for them, so there's a slight possibility, but I've always been under the impression it's a lot more likely for your receiver to fail than it is for your speakers, and the receiver only comes with a one year warranty.
Any input would be appreciated.