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Curryman DAC and balanced output 7 years 10 months ago #14714

  • Alain MATA
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Hi everybody,

Is there any plans to deliver a Curryman DAC with a balanced output. ?
If not, have you some right schemes to achieve this ?

@+
Alain

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Curryman DAC and balanced output 7 years 10 months ago #14719

  • curryman
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The ES9023 DAC has unbalanced outputs and therefore you'd always need an unbalanced to balanced converter to add balanced outputs. There is no plan to make a new curryman DAC with balanced outputs.

However I did some unbalanced in to balanced output converter boards using line driver ICs e.g. from TI (DRV134) or That (1646). Just need some time to test the boards :huh: They will most probably not be available through miniDSP but I could make them public so that everyone can order this boards from a pcb manufacturer (or organize a group buy) ;)

kind regards, Daniel

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Curryman DAC and balanced output 7 years 10 months ago #14734

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This is the balanced output board:


First measurements show that it works very well. No sound test yet but I expect it to be quite transparent.

kind regards, Daniel
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Curryman DAC and balanced output 7 years 10 months ago #14737

  • Alain MATA
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HI Daniel

Looks great ! :)

kind Regards
Alain

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Curryman DAC and balanced output 7 years 10 months ago #14758

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Neat board Daniel, look forward to hearing your feedback. :-)
miniDSP, building a DSP community one board at a time.

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Curryman DAC and balanced output 7 years 5 months ago #16711

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Dear Daniel,

any news on this? Would it be possible to organize a group buy? I am pretty confident a bunch of people will find some interest.

Please let me know.

Kind regards,

Alex.

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Curryman DAC and balanced output 7 years 5 months ago #16719

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Dear Daniel,

any news on this?.


Well not really. Last months were quite busy with other things.

However the board works well and I have some few boards left. Just send me a PM. I'll not organize a GB, simply no time. But if someone would be willing to do so I would be happy to provide the Gerber files ;)

kind regards, Daniel

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Curryman DAC and balanced output 7 years 3 months ago #17665

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Daniel
any boards left? send me a pm
Thanks Jeff

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Curryman DAC and balanced output 7 years 3 months ago #17668

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PM does not seem to be possible at the moment in this forum :unsure:

Maybe you can contact me through DIYaudio? My ID is identical there ;)

kind regards, Daniel

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Curryman DAC and balanced output 6 years 3 weeks ago #25117

  • milosz
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You mention TI (DRV134) or That (1646)

Are these improvements over an SSM2142 in some way? I've read they are all pin-compatible, but that doesn't mean they are the same. I'd be curious to know if DRV134 and / or THAT1646 are considered better-sounding than an SSM2142.

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Curryman DAC and balanced output 6 years 2 weeks ago #25128

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TI and THAT claim that their chips are improved equivalents to the SSM2142. This seems to hold true with respect to the specs. I did not compare both to the SSM2142, which I never used. Soundwise I think I prefer the THAT, however did not really perform extensive listening tests :whistle:
If you have some of the SSM I'd say just use them. Otherwise at Mouser I think the THAT has the lowest price...

kind regards, Daniel
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Curryman DAC and balanced output 6 years 2 weeks ago #25131

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Thanks. I haven't started building anything yet, just the initial research prior to design, then building.

Again, thanks for the info.

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Curryman DAC and balanced output 5 years 3 months ago #30484

  • muskel
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Oh these boards look nice. Do you have any remaning?

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Curryman DAC and balanced output 5 years 3 months ago #30598

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Hello,

If any I have maybe one left. However I would be happy to provide the gerber data :) Just send me a pm.

kind regards, Daniel
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Curryman DAC and balanced output 4 months 2 weeks ago #58426

  • rkhill20r
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Hi,

I know this is an old thread but if anyone has a working balanced output board I have a few questions as I am finally getting around to building mine:

is the R1 surface mount resistor needed and if yes what value?
also the parts that came from Aisler included a ton of 0603 surface mount .1uf caps and I do not know where these go on the PCB any ideas? could they have sent these in error?

Thanks in advance for any help!

Kevin

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