GUSTARD U18 USB Digital Interface XMOS XU216 I2S Accusilicon 32bit 768kHz DSD512 Silver

This Gustard U18 USB digital interface offers a high quality design, ensuring excellent performance and accurate sound reproduction. The input point of the U18 is a second generation XMOS XU216 USB interface with 16 cores.

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469,00 €tax incl.

390,83 € tax excl.
Including 0,05 € for green tax

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Shipping date: 24-12-2024.

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2 Years warranty
 
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Gustard U18

USB Digital Interface XMOS XU216 I2S Accusilicon 32bit 768kHz DSD512 Silver

Gustard U18 Interface numérique USB XMOS XU216 I2S Accusilicon 32bit 768kHz DSD512

This Gustard U18 USB digital interface offers a high quality design, ensuring excellent performance and accurate sound reproduction. The input point of the U18 is a second generation XMOS XU216 USB interface with 16 cores. The audio signal is fully isolated by a 200Mbps isolator to eliminate interference. It is then processed, corrected if necessary and jitter is removed by an Altera MAX II CPLD. To generate an extremely accurate clock signal, the U18 uses two Accusilicon AS338 oscillators with a jitter of only 38fs and a Gustard K2 ultra low noise clock synthesizer. Moreover, the power supply of the clocks is done by a LT3045 linear regulator with a noise level of only 0.8µVrms. The power supply stage uses a large custom toroidal transformer, optimized for audio use.

For its audio outputs, the Gustard U18 offers Toslink Optical, Coaxial, AES and I2S via HDMI. On this last output, it supports high-resolution audio streams up to PCM 32bit 768kHz and DSD512. Moreover, the I2S pinout is configurable in 4 modes to adapt to most devices on the market. Finally, we note the presence of an MCLK input and WCK output on BNC.

Gustard U18 Interface numérique USB XMOS XU216 I2S Accusilicon 32bit 768kHz DSD512

Technical characteristics

Specifications
Product typeDigital interface
Inputs1x USB-B
1x BNC 10MCLK (50Ω, 0dBm-20dBm)
Outputs1x Coaxial 75Ω
1x AES 110Ω
1x OpticalToslink
1x I2S via HDMI
1x Word Clock output via BNC 75Ω
USB interfaceXMOS XU216
Supported sampling ratesI2S : PCM up to 32bit 768kHz, Native DSD up to DSD512
Coaxial / AES : PCM up to 24bit 384kHz, DSD DoP up to DSD128
Optical Toslink : PCM up to 24bit 192kHz, DSD DoP up to DSD64
Word Clock frequencyPCM : 44.1k-768k
DSD : 2.82M-22.57M
Output levelCoaxial : 500mVp-p @ 75Ω
AES : 2.1Vp-p @ 110Ω
Word Clock : 3.3~5Vp-p @ 100kΩ
General
Supply voltage115-230VAC 50/60Hz
Consumption< 10W
Dimensions220 x 170 x 50mm
Total weight1.87kg
ColorSilver
Package1x Gustard U18
1x Power cable
1x USB-A to USB-B cable
 
Data sheet
InputBNC
InputUSB
OutputOptical Toslink
OutputCoaxial SPDIF
OutputAES/EBU
OutputI2S LVDS via HDMI
OutputBNC
Max sampling rateDSD512
Max sampling rate768kHz
ColorSilver
Interface chipXMOS XU216
 
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Average votes
5.0 / 5
1 reviews
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 5/5
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The Gustard U18 is an incredible device!
I recently bought a Gustard X18 DAC from Audiophonics and was blown away by its sound. It replaced my cheap but fantastic Khadas Tone Board DAC. I wrote my review of it on the Audiophonics website (https://www.audiophonics.fr/en/dac-with-volume/gustard-x18-dac-es9038pro-xmos-i2s-cpld-accusilicon-bluetooth-50-32bit-768khz-dsd512-mqa-black-p-15888.html). I regularly follow numerous audiophile forums and I noticed that many people praise the USB Digital Interface when their music source is a PC. Since my main music source is a PC, I decided to pull the trigger and order the Gustard U18. The choice seemed logical to me, since I already had a Gustard X18 DAC. To be honest, I didn't know what to expect from this device, nor whether I would hear any improvement in the already excellent sound of my system. After a few days, the device arrived in excellent packaging, as I have come to expect from Audiophonics. As soon as I connected it and played the first bars of classical music, I was completely taken aback. The sound image became much clearer, and the dynamic contrasts more natural. It reminded me of the moment when I first put on my prescription glasses. Yes, they were nuances in the sound, but very audible. The timbre of musical instruments became clearer, and in some performances of large orchestras I noticed violin vibrato for the first time. The resonance of the piano strings was now heard more clearly, giving the piano sound an incredible realism. The sound image was clearer and the arrangement of instruments within the sound stage more precise. The Gustard U18 has been in my system for two months now, and every time I turn on the system, I am amazed by the sound that comes from it. I recommend it unreservedly to anyone whose sound source is a PC. An incredible device!

My system: PC, Supra Excalibur USB cable, Gustard U18 USB Digital Interface, AudioQuest Cinnamon HDMI cable, Gustard X18 DAC, Van Den Hul 3T The River interconnect cables, Marantz PM8006 amplifier, Canare 4S11 speaker cables and Graham Chartwell LS6 speakers
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This review has been posted for GUSTARD U18 USB Digital Interface XMOS XU216 I2S Accusilicon 32bit 768kHz DSD512 Silver
 
GUSTARD U18 USB Digital Interface XMOS XU216 I2S Accusilicon 32bit 768kHz DSD512 Silver
This Gustard U18 USB digital interface offers a high quality design, ensuring excellent performance and accurate sound reproduction. The input...

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