Originally Posted by Walt62
DTS -HD Master, BD player outputs bitstream. I've watched a lot of DTS-HD movies, first time this has happened. I'm going to check for firmware update for my Onkyo 605. Thanks for your help.
Sure sounds like it could be the bitstream bomb.
Only certain movies have been reported to cause the problem (with specific chipset/firmware revisions in certain AVRs). I specifically remember Prince Caspian and The Golden Compass being major offenders. Before I ever experienced it, I was aware of the problem with my AVR and left my BD player in bitstream mode because I was curious to hear it firsthand. I watched many movies before Prince Caspian exhibited the sound. Since that day, I switched to PCM output and never looked back.
The sound was loud and scary (in the sense it sounded potentially damaging to speakers) and significantly louder than the set volume. Also, I was unable to simply return to the same location in the movie and have it happen again ... it seemed random. I didn't do it enough times to determine if any of the sound was from my Epik Valor but I seem to remember it being higher in frequency and coming from my mains.
Hopefully your subwoofers are fine and this is what you're experiencing.