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Shipping date: 18-11-2019.

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More info

This is Tone Board GENERIC EDITION, designed for great versatility and large integration potential. If you plan to use your Tone Board with a VIM Board, the VIM version of Khadas ToneBoard will suit you more.

Khadas DAC Tone Board Module 

ES9038Q2M XMOS U208 DSD256 PCM768kHz / 32bit SPDIF

Khadas Toneboard DAC Es9038

DAC ESS Sabre ES9038Q2M

Tone Board uses a decoding chip ES9038Q2M. Not only is it ESS flagship product, but it is also one of today's best solutions for high-fidelity audio decoding.

It embeds famous HyperStream 32 BIT 768kHz architecture and DSD256 support. Advanced reconstruction filters and excellent finesse in dithering complete the picture. 

This component is at the heart of the device. It promotes accurate audio reproduction with sustained momentum and a wider soundstage. This takes advantage of excellent performance such as > 120dB  SNR,  very low harmonic distortion (0.000337% @ 1kHz) and significantly low jitter (< 3ps clock jitter.)


XMOS chip U208

The ToneBoard connects directly to a USB source through XMOS interface U208 (8 cores). This type of interface is among the best existing solutions to stream audio through USB.

This USB chip natively supports DSD, that is to say the source provided the DAC recognize this protocol as a standard audio and will not impose any additional conversion step that may alter the quality of the digital signal.



The ToneBoard has a S / PDIF port configured by default as input. It may nevertheless be configured output depending on the particular needs of each installation.

As part of this DAC module, the USB interface is already connected to a USB-C connector type, which means that this product is completely up to date on this connection and will operate without adapter with most of the upcoming devices (PC, Smartphone, Tablet, Audio Players, DAP ... etc.)

Finally, the analog stereo RCA output is on high quality gold plated terminals.

Note: The Coaxial S/PDIF input can only be used as an input if no computer or device is connected via USB (the switch is automatic).

Formidable audio performance


Component selection and integration, quality connectors, high quality  PCB manufacturing, Khadas made no compromise on audio quality.

The device also takes advantage of two clocks with ultra-low noise quartz and very low phase noise.

The power stage operates thanks to low dropout regulators as a way to limit unwanted noise while retaining a very accessible power system.

Extremely intuitive integration

Connection TONEBOARD pc headphone amp

In its most basicss functions, simply connect the card to a computer or an audio source via USB plug-C for a functional system.

The device is compatible with Windows, Linux, MacOS. Windows, however, requires a driver (see download tab on this page).

Software Solutions & Stand-alone.

Volumio digital audiophile player

With its XMOS interface, ToneBoard is natively recognized by Volumio and can be configured as direct audio output in the software solution.

For advanced users, it is also possible to configure Raspbian directly to drive the card.

By default, the port S/PDIF is configured as an input and allows direct connection without any configuration up to 192kHz

Test Audio Science Review


KHADAS has been the subject of a detailed comparative analysis by the Audio Science Review platform.

Click here to access the Khadas review.

The Tone Board only works with a Raspberry Pi via USB, not I2S.

Parts supplied
Generic Edition Tone Board x1
USB-C Male to USB-A Male cablex1
Screws and PCB Mounting setx1
40 PIN connector femalex1
20 PIN connectorx1
TypeDAC / interface USB
VersionGeneric Edition
Interface USBXMOS XU208-128-QF48 (8 cores 500 MIPS)
DACES9038Q2M 32b
THD+N≤ 0.000337% @1KHz
SNR≥ 120dB @ 10Hz~20KHz
Crosstalk≥ 127dB @ 10Hz~20KHz
Frequency response± 0.08 dB @ 10Hz~20KHz
Sampling frequencyUp to 32bit 768kHz @
DSDUp to DSD256
jitter watch< 3 ps
Jitter DATA< 30 ps
Supported audio formatsAPE2/FLAC/OGG/WAV/ACC/ALAC/MP3/WMA
Line OutRCA (White Red)
IndicatorWhite LED
distancesSize M2 x 5
FPC Connectors30-Pin 0.5 mm (Extension 8 channels)
SPDIFUp to 192 kHz
Port USB-CPower supply (5V / 500mA) & USB 2.0 Data
GPIO40 pins & 20 Pins
Dimensions82 x 56 x 17 mm
Raspberry Pi (only via USB) / and other compatible SBC GPIO...


Khadas Tone board Dimensions Audiophonics










Driver required to use Toneboard Khadas with windows

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Average votes
4.8 / 5
17 reviews
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Surpris du resultat pour une si petite carte.
elle répond à mes attentes
This review has been posted for KHADAS TONE BOARD GENERIC EDITION ES9038Q2M DAC Module USB XMOS U208 SPDIF 32bit 768kHz DSD256
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Date :
Une étonnante petite carte. Ça marche vraiment très bien!
Branché derrière une RPi3B-Hifiberry Digi+ sous Volumio (ampli Densen et enceinte triangle)
Initialement alimenté avec l'alim d'une Google Chromecast, j'ai testé la batterie externe 10.000mAh et c'est nettement mieux.
Certains forums recommandent une alim régulée sur base d'un simple 7805 et mettent en garde contre cascader les LDO (alim LDO ext + LDO de la carte).
Un boîtier alu est indispensable pour la protéger.
This review has been posted for KHADAS TONE BOARD GENERIC EDITION ES9038Q2M DAC Module USB XMOS U208 SPDIF 32bit 768kHz DSD256
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Date :
Un filtre électronique
J'en ai acheté 2 que j'ai couplé avec une carte Nanodigi de chez Minidsp pour en faire un filtre numérique. La Nanodifi est une carte totalement numérique. On entre en SPDIF coaxial et on sort en SPDIF coaxial après traitement et bien sûr on entre sur le Khadas en SPDIF coaxial. Absolument formidable.
This review has been posted for KHADAS TONE BOARD GENERIC EDITION ES9038Q2M DAC Module USB XMOS U208 SPDIF 32bit 768kHz DSD256
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Date :
fantastic board
fantastic board
This review has been posted for KHADAS TONE BOARD GENERIC EDITION ES9038Q2M DAC Module USB XMOS U208 SPDIF 32bit 768kHz DSD256
Note :
Date :
Perfect price / performance ratio: test it yourself against your DAC
I bought this DAC somewhere else (at the same price) since at that time it was not in stock (now it is again), but it is the perfect combination with 13626 Aluminum Case for Khadas Tone Board and 11827 Damping Feet 10x5mm (Set x4) from Audiophonics.
This DAC has got the very latest converter chip which is also found in current very, very expensive DACs (for 5800 Euro ...). Of course I could not compare, but I compared it with my M-Audio 2496 in my computer and my 1980s Musical Fidelity Pan CD Player (with Tubes). And I have to say, it outplays the M-Audio card in terms of dynamic (some space resolution) and is on a par with my Pan (even if you use an old CD ROM drive with SPDIF out to feed the Khadas board). This is also great about this product, you can feed it with any SPDIF source and use the USB only for power supply. The SPDIF works once there is no digital signal coming from USB. It is also not very picky concerning the quality of the USB power. But also streaming music via a PC is very gratifying, listening to TiDAL Hifi/Master such a pleasure. If you don't believe me, try it against your DAC .... It works with the Windows driver from the internet and even much easier with Linux (Ubuntu 18.04) just by plugging in without any fuddling around with ALSA .... This product is highly recommended. Thank you Audiophonics for offering it optionally with a nice aluminium case!
This review has been posted for KHADAS TONE BOARD GENERIC EDITION ES9038Q2M DAC Module USB XMOS U208 SPDIF 32bit 768kHz DSD256

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