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HiFimeDIY UX1 ES9023 USB DAC+SPDIF/USB converter

HiFimeDIY UX1 ES9023 USB DAC+SPDIF/USB converter
Views: 78770 Brand: HiFimeDIY
Product Code: 10000138
Availability: In Stock
$69.00

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HiFimeDIY UX1 USB DAC (Sabre ES9023) + USB to SPDIF and SPDIF to USB converter

This is a very nice small DAC powered by USB bus and with many useful additional features. In addition to the normal USB digital to analog audio conversion this DAC can send a SPDIF optical input to USB. And it can send a digital audio signal from a computer via USB to the SPDIF output.

Please note: It does not do SPDIF to analog!

It is powered from USB and doesn't require external power supply.
It has a digital volume control which will adjust the main volume level on the computer.
The DAC chip is the famous Sabre ES9023 which has advanced jitter eliminator and are used in several of our other popular dacs.
The headphone output is buffered by Texas Instruments' TPA6120 current feedback power amplifier.

Analoge outputs:
It has two analog outputs using 3.5mm connectors. The one on the front is buffered by a headphone amplifier (TPA6120). The output on the back is direct output from the ES9023 chip. Both are controlled by the digital volume potmeter.
Line output power is 2Vrms and headphone output is 250mW to 16ohm. Headphone output impedance is 10ohm

Digital output: 
SPDIF digital output. The USB input signal is sent out through the SPDIF output.

Digital input:
SPDIF digital input is sent over USB to computer. Note: The SPDIF input is not sent to analog output!

USB input:
Works without drivers on Mac, Windows and Linux computer and accepts 32, 44, 48. 88 and 96 kHz sample rates and 16/24 bit. Led lights are indicating sample rate.

Specifications:

  • Self powered from USB
  • Digital volume control
  • USB input: 32,44,48,88,96kHz,16/24bit. Sample rate indicated by LED lights
  • Audiophile Sabre ES9023 USB chip
  • Two analog outputs: One direct from the DAC chip and one buffered by headphone amp
  • USB adaptive transfer mode. DAC async mode with TXC 1ps oscillator
  • Weight 110g
  • Dimensions: Width 70mm, height 25mm, depth 65mm (85mm with volume knob and screws)
on
4 ( 4 / 5 )
(edited down because of the 1000 characters limit) Purchased this for inputting optical SPDIF to a Linux PC in a test setup because it mentioned needing no drivers. Indeed it's a USB Audio Class (UAC); even the volume knob is a standard USB HID. Basic operation is quite fine. I don't have the equipment to perform an in-depth technical analysis (jitter, noise level, etc.) so I'll only mention a couple of things I noticed: - SPDIF only supports up to 48kHz; the advertised 96kHz are only for the DAC - There's some quiet, but noticeable pink noise on the analog output. - Rather basic mixer controls; mute functionality (SPDIF, line out, headphone) would have been nice - When changing sample rates first few samples are lost Not studio class equipment but good enough for my purpose. I've had trouble at first will full-duplex mode but that was caused by a buggy USB hub. (Merged two reviews)UPDATE: It seems SPDIF output works with 96kHz sample rate when selecting the "analog" output device on the PC (which outputs to both analog and SPDIF output). Only the SPDIF input is limited to 48kHz.
on
4 ( 4 / 5 )
Issue with OS El Capitan: upgrading to 10.11.4 Beta fixes this. Device works perfect again!
on
4 ( 4 / 5 )
Really love the sound quality on the HiFimeDIY UX1. Problem: Doesn't work after upgrade to OS X El Capitan. Please help. Hifime reply: You could try to clean audio caches with a program like ONYX. Please contact us for support.
on
5 ( 5 / 5 )
I needed an adapter for the MYTEK STERE96 ADC converter which only has S/PDIF and TOSLINK outputs. HIFIMEDIY UX1 SABRE USB DAC+SPDIF/USB CONVERTER does precisely this: it takes optical TOSLINK signal and sends it to USB. It actually seems the only device of a kind for this purpose: TOSLINK input disappeares from recent motherboards, while most (all?) external USB soundcards require proprietary drivers. Just like the product description says, on Linux, I did not need to worry about any drivers. The product also works as an external DAC, conveniently showing the bitrate. The only important issue was that I needed to use a USB 2.0 quality cable to connect the adapter to my laptop. The device works flawlessly. Thank you, HIFIMEDIY!
on
5 ( 5 / 5 )
Just received the DAC and I am already impressed by the sound. It drives the iem (Narmoo S1 Dual Driver) to very high level at only 1/6 of full. Normally I need to burn-in/adjust to the sound of a new equipment but, with ux1, the improvement is immediate. One aspect is that bass is immediately improved compared to the internal Realtek sound card on a laptop using Foobar2000 and it detects the different sample rate automatically. On At least on Windows7, turning the volume knob adjusts the volume on the computer. It also works on Mac OSX that I briefly tested on a Mac Mini. Front face and back plate looks like black plexiglass and the knob turns with loud clicks, but the knob is sturdy. Quality wise, it's what you would expect for the price: nice and functional. It's also very nice to have 2 output, one for headphone and the other line level that I can connect to speakers.

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