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Why aren't all CD players also DAC's?

Several years ago I had a California Audio Labs Tercet that was a one-box CD player but to use it as a CD player you installed the small RCA jumper from the coax "audio digital out" to the coax "audio digital in". In other words, the transport and the DAC parts of the machine were separated, so you could use it as either a DAC, transport, or regular CD player. That was prior to when the computer audio thing got big.

So my question is, with everyone nowadays having digital music on their computers and needing a DAC to play it through, why do manufacturers still make single-box CD players with no options for digital inputs? How much extra cost could it possibly add to allow that feature? That would certainly make the unit much more versatile.

Or am I just missing something?

Michael
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robertbrown
151 posts
 
I order to convert the digital recording which are 1's and 0's thus you must convert to analog which amp and the speakers they drive.
Note the quicker and most complete the conversion the better the sound Look at Meridian I beleive they are digital all the way though
sufentanil's avatar
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sufentanil OP
776 posts
 
Robertbrown, I'm not exactly sure I understand your statement.

My point is that a single-box CD player consists of both a transport and a DAC in the same box. Why haven't more manufacturers simply allowed access to these internal components via external connections, in a similar fashion to the decent amount of integrated amps having preouts?

Michael
ghostrider45
449 posts
 
I can think of two reasons. First is cost for extra jacks and associated real estate on the chassis. There is also a downside in that the cable used to connect the transport section to the DAC section becomes a huge issue (check out threads here on digital cables).

The second reason is that an internal connection avoids the SPDIF conversion and associated clock recovery issues. With a direct on the board connection it's easy to keep separate clock and audio streams for reduced jitter (think I squared S).
blindjim
2,837 posts
 

CDPs are DACs. They're simply quite proprietary, decoding only those discs placed within them in predetermined formats, and not for outboard use... generally speaking.
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