Name: Kguss DAC-K3PRO
Receiver: N/A
DAC: ES9018K2M
Async: YES
Working with Volumio: YES
Tested Versions and Platforms:
Harware Mixer on Volumio: None
HW Mixer string: N/A
Comments:
Name: Pro-ject pre box s2 digital
Just a remark on this DAC.
Carefull with that one connected to raspberry pi with volumio.
Iāve managed to burn one of the clocks three times by playing tracks of 44,1 or multiples followed by 48 or multiples (or vice-versa). The first times it occurs, it just makes some noise, and a power cycle resets it. But eventually it would stop working.
A pitty, as I loved the sound, specs and form factor.
Support from the retailer was good, they changed or repaired the unit every time, until Iāve decided that was enough and trade it for another model.
With the Pre Box S2 Digital, i use a SPDIF Cabel. I bought a Hifiberry Digi2 Pro.
Who updates the TOC? It appears a bit out of date compared to whatās been listed.
I know two of mine arenāt listed int he TOC.
Nobody, the community member who used to do this does not visit the forum very often anymore.
Updated the list. To be honest, this will happen occasionally as itās a very time consuming thing to do.
Yes, I figured itās time consuming. Easy enough to search 
Name: Topping E50
Receiver: XMOS 2e 16-core processor XU216
DAC: ES9068AS
Async: YES
Working with Volumio: YES
Tested Versions and Platforms: X86, rPi, Odroid N2+
Harware Mixer on Volumio: No
Comments: Real value for the money, see the review
Buying Link: Topping E50
Review: Topping E50 review
Name: Fiio K7
Receiver: USB Receiver
DAC: Dual AK4493s
Async: Capable of Async Playback YES
Working with Volumio: YES
Tested Versions and Platforms: 3.429 in PC and 3.631 in Raspberry
Harware Mixer on Volumio: NO
Comments: Direct DSD, totally plug&play
PCM 384kHz-32bit/DSD256ļ¼USB DACļ¼
PCM 192kHz-24bitļ¼COAXļ¼
PCM 96KHz-24bitļ¼OPTļ¼
Name: Denafrips PONTUS II 12th
Receiver: STM32F446 (USB)
DAC: R-2R DAC
Async: YES
Working with Volumio: YES
Tested Versions and Platforms: Volumio 3.449 on Rasperry Pi 3B+
Hardware Mixer on Volumio: NO
HW Mixer string:
Comments: Successfully tested up to PCM 352.8kHz and DSD256. When playing the first track, there seems to be missing the first 1/10th of a seconds (both in PCM and DSD). Continuous playing works normally. Files stored locally in INTERNAL.
Buying Link: https://www.denafrips.com/pontus
Name: OPPO BDP-105
Receiver: Unknown chipset (USB)
DAC: ES9018 (ESS)
Async: YES
Working with Volumio: YES
Tested Versions and Platforms: Volumio 3.449 on Rasperry Pi 3B+
Hardware Mixer on Volumio: NO
HW Mixer string:
Comments:
Name: Fiio K5 Pro ESS
Receiver: USB Receiver
DAC: ESS ES9038Q2M
Working with Volumio: YES
Tested Versions and Platforms: RPI zero/2b/3b+/4b Volumio 3.XXX
Hardware Mixer on Volumio: NO
Software Mixer on Volumio: Yes
Comments: Inkl.Haedphone-Ampfiler
32 Bit/768 kHz and DSD512 (USB)
24 Bit/192 kHz (Coax)
24 Bit/192 kHz (optically)
Name: LOXJIE D10
Receiver: Specs state: āsecond-generation XMOS solutionā
DAC: ESS SABRE DAC ES9038Q2M
Async: Yes
Working with Volumio: Yes
Tested Versions and Platforms: Volumio 3.512; RPi 3b+
Harware Mixer on Volumio:
HW Mixer string:
Comments: Specs state: āPCM supports up to 32bit/7 68kHz, and DSD supports up to DSD512ā
Bus power or USB PSU; both connectors are micro USB; official PSU for RPi 3b+ was suitable in my use.
Max current draw unavailable spec; likely requires PSU if the connected RPi also supports an external drive or similar peripheral.
Note the volume adjustment (2/4 buttons, not knob).
Extremely unique chassis comes in blue or red.
Fun manufacturer factoid: The chassis was supposed to be available in black or red (surely to match the similar desktop amp LOXJIE A10 color options), but a factory error resulted in production of blue instead of black.
Buying Link: Available from multiple online vendors.
Review: LOXJIE D10 Review
Name: KORG DS-DAC-10R
Receiver:
DAC: Cirrus Logic / Crystal CS4390
Async: Yes
Working with Volumio: Yes
Tested Versions and Platforms: Volumio 3.512; RPi 3b+
Harware Mixer on Volumio: Yes
HW Mixer string:
Comments: Has the highly unique feature of also being a vinyl record digitizer (MM cartridges) if used with KORGās proprietary software Audiogate.
Bus-powered (USB type B), can draw max 500 mA - other USB peripherals on Pi (e.g. 2.5ā storage drives) may need discrete PSU.
Released ~2015 with a chipset dated from 1998 (!):
Cirrus CS4390 Data Sheet
The chipset is on the Cirrus page of discontinued products, and is listed as āobsoleteā and unavailable on the Mouser website as of this posting.
The manufacturerās website lists supported OSās for Audiogate (unrelated to many/most/all of the deviceās purely DAC features).
Utility of this model as more than a DAC is approaching EOL for certain OSās, if not already there (e.g. Windows), but itās function as a DAC is compatible with Volumio.
The chassis is about as Mac-friendly looking as they come, and is heavy for its dimensions. The light ring behind the volume pot changes color to indicate music file sample rate and works best if you like green, purple and blue (red means trouble).
For further specs:
KORG DS-DAC-10R Specs
Review: This modelās DAC performance has not been tested and published, but a similar model with same chipset was:
KORG DS-DAC-100 Review
Note that as usual, DAC measurement shortcomings in the review are not shown to be audible.
Buying Link: Still widely available; original retail price USD $500-600; now commonly available for $300 or less (new).
Name: Okto Research dac8 Stereo
Receiver: USB Receiver
DAC: ESS Sabre (9038?)
Async: Yes, UAC2.0 compliant
Working with Volumio: Yes
Tested Versions and Platforms: 3.631 on rPi 4B
Hardware Mixer on Volumio:
HW Mixer string:
Comments: You can purchase this DAC with the rPi pre-installed (assuming thereās no shortage) or retrofit a 4B to it. rPi is powered from the Okto with USB ports directly available behind the unit. Micro HDMI and other side ports are accessible inside the case, close to the power inlet.
Buying Link: Okto Research
