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What is a DAC? - Page 2

post #16 of 20
Quote:
Originally Posted by Balisarda View Post
Right, well, I'll get smeared by engineers, but . . .
Eh... There's not TOO much to smear about.
post #17 of 20

Delete


Edited by labrat - 9/15/11 at 4:50am
post #18 of 20
Sorry for the slight drift in topic but a related question on DACs...

I always viewed digital to analog conversion as sort of a transform, so like the same signal is placed into an alternate form that is recoverable. So then what is it that makes a, say, $250 DAC that much superior to an iPod DAC? Is D/A and A/D actually a lossy tranform? Or is it a build sort of thing, i.e. the higher quality DAC uses better solder/low noise op-amps and what not? Or something?
post #19 of 20
Quote:
Originally Posted by eccdbb View Post
Thread revive...
Does a DAC output a line-level signal? Does doing source->DAC->headphones result in hearing almost nothing?
1. Yes. Afaik all DACs have line-level-out, either unbalanced (RCA, TRS, ...) or balanced (XLR).
2. Hear almost nothing? Why bother with all that gear if you do not plan to use it to hear music or like (aka, something)?
post #20 of 20
Quote:
Originally Posted by t3hggnore View Post
Sorry for the slight drift in topic but a related question on DACs...

I always viewed digital to analog conversion as sort of a transform, so like the same signal is placed into an alternate form that is recoverable. So then what is it that makes a, say, $250 DAC that much superior to an iPod DAC? Is D/A and A/D actually a lossy tranform? Or is it a build sort of thing, i.e. the higher quality DAC uses better solder/low noise op-amps and what not? Or something?
Number of things affect how good a DAC is. One is the filtering method used. All D/A requires filtering, so better DACs do the filtering better. Also the DAC usually involves some type of buffer stage which is analog and can vary in quality. Other items are the digital receiver and its ability to handle jitter. DAC is a little more involved than a math transform, sure that is the heart of it but the mechanics do require some finesse.
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