Murata polymers
Might want to try Murata polymers for digital, better performance than any other polymers I know of. They are a bit smaller and will fit the SMD footprint of a lot of normal SMD electrolytics for swapping. Lower ESR/"faster" is what digital needs.
Might want to try Murata polymers for digital, better performance than any other polymers I know of. They are a bit smaller and will fit the SMD footprint of a lot of normal SMD electrolytics for swapping. Lower ESR/"faster" is what digital needs.
Who want to pay for the POC ? I believe Soekris maid him parts sourcing already. Murata makes also very gods ceramic above the curent spec... but pricy iirc !
But maybe for a V2, some vias could be added near the main smt can caps pads for the tweaking lovers ? And a version wiyhout the main caps already soldered !
I believe we ask a lot as the low cost must depend of the industrial production process in a factory. But sure some good designs can be improved, but beta test can be expensive with such devices (many parts with low tolerance, very small smt mount, etc !).
lower esr is not always better, some other strange interactions makes sometimes a better sound with higher esr ! Dépends where on the shematic, no ?
Bah, we will test ourselves very soon now !
Happy New Year to all.
But maybe for a V2, some vias could be added near the main smt can caps pads for the tweaking lovers ? And a version wiyhout the main caps already soldered !
I believe we ask a lot as the low cost must depend of the industrial production process in a factory. But sure some good designs can be improved, but beta test can be expensive with such devices (many parts with low tolerance, very small smt mount, etc !).
lower esr is not always better, some other strange interactions makes sometimes a better sound with higher esr ! Dépends where on the shematic, no ?
Bah, we will test ourselves very soon now !
Happy New Year to all.
Thanks for the suggestion. I'm always in need of more listening of the same songs over and over! Ha... er...
Maybe they make something that'll fit the frustrating Crown XLS.
Shipping to Ukraine 97EURO, this is so expensive...
Please propose any other options with more humane price.
Please be aware that the order system is not ready yet. But let me look into it anyway, shipping should not be that expensive.... Please send a me a private mail with city and zip code so I can check rates.
Hi Søren,
Can you any give any detail about how input switching is handled in the initial firmware release and whether this will be available as a remote controlled function in the foreseeable future?
Also what are the signal level requirements for the digital inputs? AES/EBU is 2-7Vpp and SPDIF 0.5Vpp so do we need to do level conversion on these signal levels before hooking up to the DAC board?
cheers
Paul
Can you any give any detail about how input switching is handled in the initial firmware release and whether this will be available as a remote controlled function in the foreseeable future?
Also what are the signal level requirements for the digital inputs? AES/EBU is 2-7Vpp and SPDIF 0.5Vpp so do we need to do level conversion on these signal levels before hooking up to the DAC board?
cheers
Paul
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Does the Z of the SE output was given already ?
Does this output need an external unity gain stage for impedance adaptation to sound better if directly connected to an amp ?
(even if this one has a low input impedance and of course if the case where the volum is managed in digital before the DAC)
Does this output need an external unity gain stage for impedance adaptation to sound better if directly connected to an amp ?
(even if this one has a low input impedance and of course if the case where the volum is managed in digital before the DAC)
I'm sure it's been posted to this thread but the information is on the Soekris.eu website.
"The basis R-2R network has an output voltage of 1.4V RMS and output impedance of 625 ohm and can therefore drive a lot of things directly. There is also onboard balanced output drivers that can drive high impedance (>= 300 ohm) headphones directly."
I check now in EU site and Shipping to Portugal is rated at 52 euros.
I hope soekris find a more economic shipping system
Mail send
regards
Yes, I know very well that it is capable of driving high impedance headphones directly according to the specs. My question was to Søren if he actually tried and tested this.
Well, we'll have to see.
My testing so far is done with my HD-650 headphones driven directly from the DAC. And it sounds great....
The used LME49724 balanced driver are spec'ed to deliver typical +- 80 mA, so you could probably drive even lower impedance headphones and/or drive them balanced....