GUSTARD A26 DAC 2x AK4499EX XMOS XU216 LAN UPnP Roon 32bit 768kHz DSD512 MQA Silver

K2 Clock

In order to provide an accurate clock signal, the A26 features the ultra-low noise K2 module. This ensures that the DAC is able to achieve a very low jitter level for the most transparent sound possible.

The A26 also provides a 10M BNC input allowing it to be used in conjunction with an external clock generator.

Specifications
Product type	DAC
Inputs	1* Optical Toslink 1* AES/EBU 1* Coaxial 1* I2S (HDMI) 1* USB-B 1* RJ45 Ethernet 1* BNC clock input (50Ω)
Outputs	1* Single-ended stereo RCA 1* Balanced stereo XLR
DAC chips	2* AKM AK4499EX
Digital modulator	AK4191
USB interface	XMOS XU216
Supported sampling rates	USB / I2S / LAN: PCM up to 32bit 768kHz, Native DSD up to DSD512, DSD DoP up to DSD256, MQA AES / Optique / Coaxial: PCM up to 24bit 192kHz, DSD DoP up to DSD64
Network protocols	UPnP Roon Bridge HQPlayer NAA
Frequency response	20Hz - 20kHz ±0.2dB
Dynamic range	> 127dB
SNR	> 126dB
Crosstalk	-139dB @ 1kHz
THD+N	≤ 0.0001% @ 1kHz
IMD	≈ 0.001% @ -1dBFS
Output level	RCA : 2.5Vrms (fixed volume) 100Ω XLR : 5Vrms (fixed volume) 100Ω

Specifications

Product type

DAC

Inputs

1* Optical Toslink
1* AES/EBU
1* Coaxial
1* I2S (HDMI)
1* USB-B
1* RJ45 Ethernet
1* BNC clock input (50Ω)

Outputs

1* Single-ended stereo RCA
1* Balanced stereo XLR

DAC chips

2* AKM AK4499EX

Digital modulator

AK4191

USB interface

XMOS XU216

Supported sampling rates

USB / I2S / LAN: PCM up to 32bit 768kHz, Native DSD up to DSD512, DSD DoP up to DSD256, MQA
AES / Optique / Coaxial: PCM up to 24bit 192kHz, DSD DoP up to DSD64

Network protocols

UPnP
Roon Bridge
HQPlayer NAA

Frequency response

20Hz - 20kHz ±0.2dB

Dynamic range

> 127dB

SNR

> 126dB

Crosstalk

-139dB @ 1kHz

THD+N

≤ 0.0001% @ 1kHz

IMD

≈ 0.001% @ -1dBFS

Output level

RCA : 2.5Vrms (fixed volume) 100Ω
XLR : 5Vrms (fixed volume) 100Ω

General
Supply voltage (switchable)	115V/230V AC 50Hz/60Hz
Consumption	< 30W
Dimensions (LPH)	33026065mm
Housing material	Aluminum
Color	Silver

General

Supply voltage (switchable)

115V/230V AC 50Hz/60Hz

Consumption

< 30W

Dimensions (L*P*H)

330*260*65mm

Housing material

Aluminum

Color

Silver

Input	RJ45
Input	AES/EBU
Input	USB
Input	Optical
Input	I2S via HDMI
Input	Clock (BNC)
Input	SPDIF
Output	RCA
Output	XLR
DAC / ADC Chip	AK4499EX
Max sampling rate	768kHz
Max sampling rate	DSD512
Max sampling rate	MQA
Color	Silver
Networking	Yes
Remote Control	Yes

Excellent DAC - Horrible Streamer !
The DAC is excellent however the streaming module is an afterthought that is very buggy ! There are regular drop outs when streaming from Roon and the device will register itself with a new MAC-adress on your network at EVERY startup. This has been confirmed by multiple users on head-fi.org forums. Also note that this is not a Roon Ready device, it's a Roon bridge which is NOT officially supported by Roon. In fact, Gustard does not have a license to claim Roon compatibility and it does not appear in the list of Roon compatible devices (https://roon.app/en/partners). The manual is an auto-translate from the Chinese version. I now stream to a Raspberry Pi running RoPieee, which is then connected via USB to the Gustard, this combo works very well. But the Gustard as a solo streaming solution ? Absolute crap.

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