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In Reply to: RE: Isn't that usually the case? posted by John Elison on May 04, 2017 at 19:57:22
Product pricing is determined by the following two major factors:
1. Market conditions (supply vs. demand)
2. Product costFor the price of a product to fall, either it's supply increased, or it's demand decreased, or it's production cost has decreased, or some combination of those three. The inferior specifications for the PCM1795 would likely decrease market demand for it, as well as potentially lowering production cost, relative to the PCM1792A.
Advancements in fabrication technology does regularly drive down the fabrication cost of pure digital chips, but that does not ncessarily follow for analog chips, nor for mixed-signal chips, such as audio DACs. Even when there is a reduction in fabrication costs vendors would prefer not to pass the reduction on to customers via lower pricing. They would rather pocket any cost reduction as increased profit. Competitive (market) pressures are what drive vendors to keep lowering prices as cost falls.
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Ken Newton
Edits: 05/05/17Follow Ups:
I don't know the specifications for either of those two DAC chips, but my TASCAM DA-3000 contains the PCM1795 and it sounds great to me. Furthermore, it plays DSD 2.8-MHz and DSD 5.6-MHz. I have fallen in love with the sound of DSD and I'm making all my vinyl recordings in DSD 5.6-MHz from now on.
Are there any DSD DACs that use the PCM1792A? I really like the texture of high frequencies from DSD recordings. They seem to sound more analog than any PCM recordings I've heard.
Thanks,
John Elison
I don't know off hand which commercial DAC boxes utilize the PCM1792A.
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Ken Newton
Found here .
My ARC DAC8 uses a pair of PCM1792s. While each has two channels, the DAC maintains separate master oscillators for 44.1/88.2/176.4 and 48/96/192 operation.
Yeah but how many have the PCM1792 A
The PCM1792 is obsolete.
Yeah but how many have the PCM1792A
Click my link and count for yourself.
The PCM1792 is obsolete.
In that context, every chip or component that has been updated is such. The twenty year old PCM1704 remains quite popular as used in new designs by Audiogd, etc.
I'd much rather have an older high performance component than a brand-spanking-new one that is less so. :)
"The PCM1792 is obsolete.
In that context, every chip or component that has been updated is such."
That's right, you got it.
Okay!
Well, I'm perfectly happy with the PCM1795 DAC chips in my TASCAM DA-3000. It actually sounds as good as any DAC I've heard and you can't beat the price.
Thanks,
John Elison
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