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136.1.1.166
In Reply to: RE: Channel Classics getting out of SACD mostly posted by PAR on April 23, 2016 at 18:14:29
Here's an interesting thread from the Steve Hoffman forum. I haven't made it past the first couple of pages, but someone stated most current SACD players user a Mediatek chip now instead of the discontinued Sony.
Dan
Follow Ups:
Thanks for that . Very interesting and it has made me think a little further.
I think that there is a bit of a confusion as to what chip does what. The Mediatek is a digital processor which is meant for multi-media machines. It also handles video formats, of course, as well as HDCD. It is, accordingly at first sight, unsuitable for dedicated SACD players using bona fide SACD mechanisms.
The Sony chip in question has a particular function specifically related to SACD mechanisms. It reads TOC and decodes the encryption of SACD. See the link to an archive bulletin which I think is about the Sony chip that is no longer in production.
So, while the Mytek chip (or similar) remains current SACD should be playable on new Oppo machines and, perhaps, some other multi media machines that may support SACD like the Ayre C5-XE.
Putting aside the players from boutique manufacturers which rely upon OEM transports and/or the Sony chip, Denon/Marantz and Yamaha remain as SACD player makers who may be large enough to have produced their own decoders. However it is proving hard to find out anything about what they use. Also, AFAIK, they do not supply other companies which limits the size of the continuing market.
You have provided a link to the Sony part CXD2750AQ, which was an early sacd decoder chip. Your posting seems to indicate that the lack of this old chip is the a reason for the lack of "OEM sacd mechs".
So, I decided to look at the Service Manuals of my own sacd player, SA-8260, and also the much newer SA11-S2. The SA-8260 uses a CXD2752R decoder and the SA11-S2 uses the CXD2753R decoder.
I do not have service manuals for the SA11S3 player or the Oppo 105 player. But since these players are in current production they would have to have an sacd decoder chip of some kind that is in good supply.
So the sky hasn't really fallen yet, though it may have for some.It's like now there is only one sacd pressing plant outside Japan and when that goes then there will be no more sacd discs.
Edits: 04/29/16
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