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AckoDAC based on ES9039PRO

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#164
Model: AKD39
chip: ES9039MPRO
Description: Core DAC module with I2S, DSD, Spdif and TDM inputs on pins. 8 channels out on pins. Controller included. On-board Regs for chip supply: DVDD_1.2V digital core. AVDD_3.3V digital I/O, VCCA_3.3V analog, AVCC_ref 3.3V ULN. External power +/-12V(9-15V range),500mA rating needed (not included). I-V conversion, line level voltage outputs BAL/SE. Metal FOIL resistors and film capacitors for critical sections

Promotional price: USD 585, free shipping
Min Qty:12 Max:20

GB List update:
Acko x4
uptownsquash x1
Anonymous x1
Charcoal x1
fedde x1
AR2 x2
Raj!1 x2
Stepping3D x1
Forane12 x1
trung224 x1
danbmellow x1

Total: 16
 
#165
Almost there🙂
 

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#167
GB Closed - All in fab now 🙂

Model: AKD39
chip: ES9039MPRO
Description: Core DAC module with I2S, DSD, Spdif and TDM inputs on pins. 8 channels out on pins. Controller included. On-board Regs for chip supply: DVDD_1.2V digital core. AVDD_3.3V digital I/O, VCCA_3.3V analog, AVCC_ref 3.3V ULN. External power +/-12V(9-15V range),500mA rating needed (not included). I-V conversion, line level voltage outputs BAL/SE. Metal FOIL resistors and film capacitors for critical sections

Promotional price: USD 585, free shipping
‘CLOSED’

GB List
Acko x4
uptownsquash x1
Luca72c x1
Charcoal x1
fedde x1
AR2 x2
Raj!1 x2
Stepping3D x1
trung224 x1
danbmellow x1

Total: 15
 
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#176
jean-paul said:
No my faith tells me to avoid ESS and their stuff for a while. Please accept my apologies for intruding.
Click to expand...
Please ignore audiophile legends and faith. I'm a diy builder and i tested 2 (nearly) identical dacs builds, using one a ES9038pro chip and one a AK4493 chip (more or less from the same year). I say nearly because obviously differences in characteristics and output requirements forced me to introduce some minimal differences in implementation (like a 32Khz 1st order LPF at output in ESS case, that is strictly mandatory in any ESS build in my experience - but i implemented it in AKM case to, for equity), but mainly the same: same psu, same-quality parts in circuit, nearly same (equivalent) output stage, same software players, etc... Of course using the same hiend hifi system post-DA conversion (highly revealing).
At the end, the 2 builds were blind-tested by me and some audiophile friends of long experience: no great difference at all in sound, noone could clearly tell the ESS dac from the AKM one. And i was playing through HQPlayer, converting PCM to DSD: yes, ESS don't use something like "DSD direct" technology, but this means absolutely nothing for me as noone can really tell were is the difference IN PRACTICE as noone knows exactly how ESS DSD modulators are designed, they could even practically be impactless in DSD flow conversion, just like AKM DSD direct. And when we had to choose the best sounding dac, the ESS was the winner, by a slight margin. Of course i didn't tell them they were testing an ESS dac, otherwise the result would have been quite different 😅
I built, tested and owned a lot of ESS and AKM dacs until now, and i always preferred the ESS ones: they're simply (slightly) more faithful to the REAL sound, not by accident they are widely used in pro audio gears (multichannel interfaces and DSPs, TV studio equipments, radio equipments, etc...). AKM dacs are offering a "gentled" sound optimized for musicality, but less equal to REAL sound. They sound like music SHOULD sound in our imagination, but not how it sounds for real. That's why they please most "romantic"/"warm liking"/"musicality lovers" (NOT audio lovers)/less audio fidelity lovers audiophiles.
I can't speak for R2R dacs as i never built one, but i rarely liked the ones i listened to, even if each one is sounding in a different way. To my ears, the majority of them have a sound perfect for oldmen listeners of classical/slow jazz music, but bad for other types of listeners...
 
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