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Non-OS DAC with i2s input?

post #1 of 23
9/3/08 at 5:08am
Thread Starter 
Are there any out there?
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post #2 of 23
9/3/08 at 5:45am
Zanden :P
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post #3 of 23
9/3/08 at 5:55am
Thread Starter 
Anything a bit cheaper?
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post #4 of 23
9/3/08 at 7:46am
no; the closest would be a NOS dac with USB input, where the USB converts to I2S, e.g. DDDAC, Monica 3, Audial Aya
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post #5 of 23
9/3/08 at 8:02am
Thread Starter 
Oh, that's a pity.
Thanks for clarification.
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post #6 of 23
9/3/08 at 10:27am
what about this one?
Satch DAC | Diy HiFi Supply
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post #7 of 23
9/3/08 at 10:45am
EmpiricalAudio is coming out with one, the Overdrive Dac, (usb to I2s) supposed to be $2000. I suspect it will be more than that in the end.
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post #8 of 23
9/3/08 at 3:10pm
The Audio Alchemy dacs

dont know if its NOS tho
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post #9 of 23
9/3/08 at 4:40pm
How do I2S work? What kind of connection had to be on CD player and DAC? If I had any CD player with just TOSLINK or coax output, can it also work with I2S DAC? I never see I2S mentioned on any CD player.
Sorry for my ignorance but subject very interesting for novices like me to understand.
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post #10 of 23
9/3/08 at 6:02pm
Very few CD players have been made with i2s outputs. Audio Alchemy made some and I think there is one in the Stello stack to go with the signature DAC, right?
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post #11 of 23
9/4/08 at 3:47am
Thread Starter 
Thanks for the replies.

The Satch DAC looks interesting. It lacks reviews, though. The one that raved about the sound was on modded Satch dac with lamp output.

I guess the CD players with I2S out are not that many, right. But I intend using the I2S out from ESI Juli@ sound card.

The Stello DA100 Sig and Northstar M192 both have I2S input (both of them have a matching transport), and both have the option to bypass the Over/upsampling, however both of them use Oversapmling DAC chips, but I'm kind of looking for a true (oldschool) non-OS chip.
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post #12 of 23
9/4/08 at 4:53am
the satch dac raved about is from the modder who did the lamp output. it could be his own personal preference. the original output of the satch dac is transformer output, transformer output suppose to be very good, natural and organic. i am very curious about how this satch dac.
another dac that has i2s interface is the zhaolu d3 with tg-link card as transport, but that's a oversample dac
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post #13 of 23
9/4/08 at 6:20am
Still unsure how worthwhile this all is; I2S is an internal protocol, its normal home is inside a CDP, with transmitter and receiver more or less on the same PCB, or with DAC right under a partnering transport; talking < cms here.

Without correct termination and buffering, it will suffer the same kind of transmission line issues as S/PDIF, and you'll just reintroduce or compound the jitter you hoped to avoid by chasing this setup.

Not at all saying it can't be done properly, but it's a delusion to think you just tap it out of the Juli@, run it along a cable with mystery impedance, and expect it to sound good.
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post #14 of 23
9/4/08 at 7:12am
Thread Starter 
Well, the I2S cable included with the North star M192 combo is at least 30-40 cm long.
(Don't know why it's so long, though. The distance between the input and output when the transport stacked on the top of the DAC ir much smaller)

I believe that with a modded PC case (and maybe modded DAC case) the length of the cable could be reduced to ~ 10 cm.

And I still would like to believe that feeding pure I2S into the DAC chip is better that with 2 SPDIF converters in the way.

But I'm not 100% sure either.
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post #15 of 23
9/4/08 at 7:39am
That's just the rx end. Your problem would be how to get a decent tx circuit from the Juli@.

Quote:
Originally Posted by nopietns View Post
And I still would like to believe that feeding pure I2S into the DAC chip is better that with 2 SPDIF converters in the way.
Then why not consider USB-I2S??
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