Originally Posted by OpenMindAudio
Well, not good so far. The Heos Link 2 will not play Apple lossless (alac, .mp4a), even though it's advertised as a compatible format. These are my own files ripped from CDs, without any DRM issues, and they play fine on all other players in my house, including Sonos and my networked receivers (Marantz, Yamaha, before that, Onkyo). The new, second generation Heos with updated firmware plays my high-res flacs fine, also DSD (.dsf) files and mp3, but it fails to open any .mp4as, says "file format unsupported." Fails from the NAS via ethernet and fails from a USB drive, both of which serve up the flacs et al. just fine. Of course, 75 percent of my library is .mp4a.
... I hope this gets resolved quickly and happily because I really want this Heos player to be able to play hi-res files in different parts of the house. I remain open minded and hope I will be pleasantly surprised by by Heos/Denon's service.
I want to update this thread now that Heos / Denon has partially resolved the problem.
Heos Link 2 will play Apple Lossless files (ALAC, mp4a) only if they are created by one of the absolute latest versions of iTunes, such as the current (as of Jan. 14, 2017) version 18.104.22.168. I was running a version of iTunes 12 from just 2-3 months ago, and the ALAC files it created would not play on Heos Link 2. The customer service staff at Denon, one of whom was very helpful and conscientious (Michael M - nice job), tested one of my ALAC files and had the same problem I did. He found by using the current 22.214.171.124 version of iTunes, he could convert the file (convert from ALAC to ALAC within iTunes) and it would play. I was able to replicate that and can now play freshly converted or freshly ripped ALAC files.
Michael M at Denon deserves the credit for sleuthing this out. The two initial answers I got from the Denon tech support team (people behind Michael M) were ridiculous: 1) try Plex server (which had no affect on the problem), and 2) download a 10 year-old line-editing code tool and do a bunch of complicated stuff to change the packet structure of my music files (thanks for the user-friendly option guys). I was ready to explode more or less when Michael M, on his own, found the iTunes solution. Another work around he and I both considered, of course, was to convert my old ALAC files to Flac.
One other jibe at Denon, however - I had to call them and wait on hold three separate times to get this problem escalated, and that was even though Denon told me it was escalated after the first call. That cost me about 3 hours and it's obnoxious. Even AT&T has the decency to schedule a call back rather than place customers on hold.
While I commend Michael M at Denon, utimately the solution here can only be considered a partial success at best, more like a feeble workaround, because:
1. I have 32,000 Apple Lossless music files on my server. It's kind of a non-starter to suggest I convert all 32,000 of them to Flac or to a brand new Alac file within iTunes. That would take me a ridiculous amount of time and effort.
2. NONE of the other music server platforms I've tested have had this problem:
- Yamaha Musiccast plays the Alac files perfectly that Heos Link 2 won't play.
- Sonos does too
- My Marantz 7702 vmkii plays them through its own DLNA interface
- My old Onkyo receiver played them through DLNA interface
Apart from this glitch, I like the Heos Link 2. It has good sound quality and handles my high resolution files well.
But if you happen to have a bunch of Apple Lossless files on a server, I would not recommend it. Mine will have to be returned, since I can't convert 32,000 files (or even 2,000) just to be able to use it. It should play them from the get go, just as all of its competition does.