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SONCOZ LA-QXD1(Black) Digital HiFi Audio Converters (DAC) with XLR Fully Balanced

Two of the best performing mic preamps the Soncoz range has ever seen, now with Filter modes switching to give your recordings a brighter and more open sound.
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ES9038Q2M 32bit / 768kHz DSD512 

Here is a very complete symmetrical digital/analog/DAC interface integrating a combo of SABER ES9038Q2M chips as well as a USB XMOS interface.
Its resolutely high fidelity circuit, its sober and compact construction as well as its very accessible interface make it an ideal solution for audiophiles looking for an accessible and easy to configure DAC for a high-fidelity installation.



Reviewed by Audio Science Review

Usually a symmetrical output comes with a higher price since it is considered to be a premium feature. This is not the case here: for a really economical budget, you have the XLR output and more importantly, a superbly low noise and distortion level.

 test by the Audio Science Review measurement forum

DAC ES9038Q2M chip


The LA-QXD is a high-precision DAC operating with two ES-3238 SA2 32-bit SA90 chips integrated in symmetrical mode.

This component is one of ESS flagship products and one of the best current hardware solutions for high-fidelity audio decoding, notably with the HYPERSTREAM 32 BIT 768KHZ architecture as well as native DSD support. They are also equipped with advanced reconstruction filters and have excellent finesse in dithering.

ESS technology is also very popular in that it provides extremely precise and signal-friendly volume control.

USB interface & S / PDIF interface


The LA QXD1 has a USB input on a USB-B connector controlled by an essential XMOS U208 interface. The latter allows it to work directly from audio streams on your computer or any device with this type of connector.

A second separate USB connector is in charge of powering the device. This redundancy makes it possible to completely ignore the audio noise linked to the capture of power supply noise by the USB interface. This power connector is USB-C to facilitate scenarios of nomadic use and battery power.

In addition to the USB input, the LA QXD1 has an S / PDIF interface. The latter allows it in the first place to decode the S / PDIF streams received on its oaxial inputs &

In addition, the SPDIF interface is also connected to the USB interface as well as to a digital output on coaxial port. In addition to its DAC function, the LA-QXD1 can thus behave like a digital interface, capable of interfacing its optical / coaxial and USB inputs to a coaxial S / PDIF output. This digital interface output offers various integration possibilities for occasionally or permanently connecting devices that do not have the appropriate connections.

Simple and accessible control panel

The device is easily controlled using four buttons on the front. These provide access to source selection, digital filter adjustment, volume control and mute functions.

A panel of four LEDs indicates the active output in real time and allows you to check that the device is powered up.

Type DAC
Digital interface
Architecture Symmetrical
DAC chip ES9038Q2M
Entrances USB-B (XMOS)
Optical Toslink
Coaxial SPDIF
Exits RCA analog stereo (unbalanced)
XLR analog stereo (balanced)
Coaxial SPDIF Digital
Sampling frequency USB: 32-bit / 768kHz PCM - DSD512 (Native)
Optical: 24-bit / 192kHz PCM - DSD64
Coaxial: 24-bit / 192kHz PCM - DSD64
Output level XLR: 4.0Vrms @ 0dBFS
RCA: 2.0Vrms @ 0dBFS
Frequency response 20Hz ~ 20KHz (± 0.18dB) XLR / RCA
Dynamic range > 124dB A-Weighted
THD + N <0.00015% @ 1kHz XLR / RCA
Crosstalk > 130dB @ 1kHz XLR / RCA
Output impedance 200Ω XLR
100Ω RCA

Modulation of background noise
Dimensions 149.3 x 87 x 37mm
Weight 475g
LA-QXD1 x1
USB-B male / USB-A male cable x1
USB-C male / USB-A male cable x1



Documents code: AU0001
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