YULONG had announced their new USB Async digital interface, U18. Thanks YULONG for allow me to have one of the sample units. Here comes the photos.
As usual, the cardboard box.
Since it is a sample unit, it only come with the interface itself and a USB cable.
3 LEDs on the front panel. DC in, OK(working status) and USB. There is also a RJ45 I2S socket.
There are 5 ports on the back panel. AES, COAX, optical, USB and DC in. The unit can be powered by USB or an external 12V DC power supply.
I dont have a 12V DC power supply, so it is powered through USB. At the moment, it outputs via the COAX to my YULONG D100.
Here is some more detail they published.
Base on the TE8802L, U18 has customized driver to support Windows (XP/Vista/7) and Mac OS X. It includes AES/EBU, Toslink and Coaxial outputs to insure compatibility with your DAC, while the I2S interface would allow more choices for the DIY lovers.
U18 automatically switches between USB power and external power. When powered through USB, its strong regeneration circuitry will provide low noise power source to ensure high voice quality. Still, the more demanding users can optionally use an external linear power supply to enable galvanic isolation with the PC power, to deliver an even higher audio quality."
U18 Technical Specifications:
Input : Asynchronous Transport High Speed USB 2.0
Output:SPDIF COAX, SPDIF TOS ,AES/EBU, I2S. (Full support for 24Bit 192KHZ)
SPDIF/ AES/EBU jitter :150ps
SPDIF/ AES/EBU THD+N: -140dB
To be continued......
Edited by sashaw - 9/30/12 at 5:14pm