I've not heard either of the two units mentioned but to my ears the BB PCM63 is one of the best sounding chips I've got as employed in CD players. Better than the BB PCM58 and multi used BB1702. (Even in high'ish end machines) I would say on a par with the TDA1541A S1 for musicality, it just sounds "analogue". As for measurements I have no clue.
My new DAC uses dual ESS ES9028Q2M chips and it sounds very good.
So ESS is also good stuff!
But of course components around it also means a lot.
So ESS is also good stuff!
But of course components around it also means a lot.
Available from Mouser for DIY DAC?
https://www.mouser.dk/datasheet/2/1082/ES9028Q2M_Datasheet_v0_41-1923466.pdf
https://www.mouser.dk/datasheet/2/1082/ES9028Q2M_Datasheet_v0_41-1923466.pdf
I was looking at this yesterday. I'm not able to develop my own schematics yet (still learning), but if you need a buddy for a project or to verify boards let me know... I'd love to work with that chip
Although... Gee golly the schematics included in that sheet sure do lay out most of what you'd need to get things up and running
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I have just got this DAC which uses the ESS chips. They are located to the right just below the horisontal center line:
It can also use the built-in digital vol-control of the ESS but I have not tried it yet. I use fixed output. But would be fun to know if it is a vol control that don't compromise the resolution. Think it works in 32 bit domain. So if 24 bit it up-sampled to 32 bit it might not loose much and may be lossless for 16 bit music......who knows. There has been endless discussion of such topics. I know that PS audio claims that they have made a mathematically lossless digital vol control but it uses 50 bits words. My preamp has to drive 5k impedance and some cables so I need a preamp with some "drive"......so I better stay using my SSII amp which I like very much.
I will be a bit of a pain to "hand-solder" such a circuit?
It can also use the built-in digital vol-control of the ESS but I have not tried it yet. I use fixed output. But would be fun to know if it is a vol control that don't compromise the resolution. Think it works in 32 bit domain. So if 24 bit it up-sampled to 32 bit it might not loose much and may be lossless for 16 bit music......who knows. There has been endless discussion of such topics. I know that PS audio claims that they have made a mathematically lossless digital vol control but it uses 50 bits words. My preamp has to drive 5k impedance and some cables so I need a preamp with some "drive"......so I better stay using my SSII amp which I like very much.
I will be a bit of a pain to "hand-solder" such a circuit?
Attachments
About selecting between the three filters those are options on the front panel 🙂
It should not be that difficult to select when building it for DIY. It is documented how to do it in the specification of the chip.
It should not be that difficult to select when building it for DIY. It is documented how to do it in the specification of the chip.
It was because other DAC chips was mentioned than those in the headline of the thread.......so I had the impression that it was "allowed".
Then there also was a positive response on the "ESS topic" from another member so it was also a response to that.
Then there also was a positive response on the "ESS topic" from another member so it was also a response to that.
Dac chips make for great dogma, we should forgive ourselves for chasing what we think sounds better... it's going to happen. All should have a really esoteric watt-sucking I/V stage though. 🙂
can't believe some people still buy these crappy ESS based Dacs ..
Crappy ESS DACs ?!?! What a nonsense. Much depends on implementation and acceptance of new stuff instead of staying in the past. It is nice to be conservative but one learns not to be when using PCM1704 🙂
The reasoning is also off. Normal producers use current parts and normal consumers buy whatever is available on the market that is built with those parts, not with obsolete stuff that can only be found via non official channels. So, many buy and will buy current ESS, TI, Wolfson and possibly AKM parts again (when the factory is rebuilt).
https://evertiq.com/design/51031
The reasoning is also off. Normal producers use current parts and normal consumers buy whatever is available on the market that is built with those parts, not with obsolete stuff that can only be found via non official channels. So, many buy and will buy current ESS, TI, Wolfson and possibly AKM parts again (when the factory is rebuilt).
https://evertiq.com/design/51031
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ZM,
I was going through your diagram and see that there are ** for C27 and C28, but no note on what value to use. Can you please provide my with a little guidance.
Very Respectfully,
Greedy Boy
C3 and C16 are, say, brickwall filter (if I'm using term properly), dependable of DAC chip used
those marked with * are additional high-pass filter, that also depending of entire arrangement
if you don't have measuring equipment to define them, or you don't have objection with ringing in ears, leave them off
those marked with * are additional high-pass filter, that also depending of entire arrangement
if you don't have measuring equipment to define them, or you don't have objection with ringing in ears, leave them off