April Music Stello U3 192kHz 24bit USB to SPDIF Converter


Free Lifetime Technical Assistance


  • $395.00

  • $495.00

April Music proudly introduces simply the best DDC in the high-end world. By using customized X-Core 32-Bit / 500 MIPS microprocessor from XMOS & super low jitter 2 external clock generators, Stello U3 Serves as the finest bridge between your PC & DAC. U3 supports all the files up to 192kHz/24bits.

USB Audio Class 2.0 compliant

Asynchronous synchronization mode
High Speed Bit Perfect Audio Data Stream up to 192kHz sampling rates

Master clock

Super low jitter 2 external clocks

Sampling Frequency

22.5792mHz/24.576mHz for multiples of 44.1kHz/48kHz sampling rates


Standard sample rates 44.1, 88.2, 176.4, 48, 96, 192kHz/24bits Audio


1 USB 2.0, Type B connector


Galvanic Isolated, Up to 192kHz sampling rates
1 COAX 75 Ohms, Gold Plated RCA Connector
1 AES/EBU 110 Ohms, Neutrik XLR Gold plated contacts

Lock indicator

LED on the front panel

Platform Support

Customized Windows Driver : Windows XP, Windows Vista, Windows 7
Natively supported by Apple Mac OS X