I'm having a trouble with the subwoofer firing depending on the source content. When I have regular TV or a movie with 5.1 sound, the subwoofer definitely fires and it rumbles the house if I turn it up. But then as as soon as I play music, whether it be through Pandora, the iPod dock, or even through the cable tv music channels, the subwoofer doesn't work, so the bass in the music is only coming through the other 5 speakers. My other five speakers are pretty decent, so it still sounds ok, but the bass definitely isn't nearly as good.
I have another similar Yamaha receiver in another part of my house and the bass works fine with every source, including the same sources I'm running through this one. I can't for the life of me figure out why this is happening?
If any genius out there can diagnose the problem over the internet that I haven't been able to figure out after a couple hours in person I'd be very grateful.