The sibilance with DD+ on Netflix has been driving me nuts. I have Pioneer VSX-9040TXH and can report this happens beyond Denon. I first noticed it watching Orange Is the New Black but have since heard it on other DD+ encoded streams. I get the same audio distortions at the high end streaming Netflix from Roku 3 and TiVo Premiere. The sibilance I'm hearing is just like the Vocaroo posted above.
1/6/14 at 9:15am