The first 24bit/192kHz USB Multi-bit DAC(PCM1704).

RAL-24192DM1 debuts as the first USB-DAC with PCM1704. RAL-24192DM1 doesn't use DF1704 8 x Oversampling and Digital Filter chip. It's Internal firmware control PCM1704 directly and bring out pure and natural sound from the DAC. These two Multi-bit DACs are driven by Low-jitter Bit-Clock, Word- Clock and Master-Clock generated by X-Tal Oscillator module.design.

Two Digital Audio ( High Speed USB and S/PDIF COAX ) input.

USB input accept up to 24bit/192kHz High Definition Audio. S/PDIF COAX input accepts up to 24bit/192kHz HD Audio too,

No installation dedicated driver. Ready for 24bit/192kHz USB HD Audio stream.

• RAL-24192DM1 is fully compatible with USB Audio Class 1 and works with EHCI High Speed High Band Width mode.
• RAL-24192DM1 never required dedicated driver software.
  It's fully compatible with Windows 7/Vista/XP(32/64) and MacOS X 10.6.5 or later.
  
• Works fine with many Music Player application such as iTunes, MediaPlayer,foobar2000 etc. and BitPerfect, WASAPI, ASIO drivers.

New featured S/PDIF processor.

RAL-24192DM1 doesn't use DIR(Digital Interface Receiver). RAL-24192DM1 includes software S/PDIF decoder, End Point(memory buffer) for 192 Frames and Timing/Control signal generator for Multi-bit DAC(PCM1704).
The timing/Control signal generator circuit is fully driven by dedicated two independent X-Tal Oscillator modules (24.576MHz and 22.5792MHz). This circuit provides low jitter Bit-Clock and it drives D/A converter accurately.

Three Analog Output.

• A pair of Un-Balanced Stereo Lineout.
  L, R Ch. RCA Jack. 2Vrms.
• A pair of Balanced Stereo Lineout.
  L, R Ch. XLR Receptacle(Male). +4dBv.
• One Head phone stereo output.
  1/4" phone Jack . 1.56Vrms(32 Ohm)
• * All output levels are measured with 24/96kHz 1kHz/0dB input level through USB.

Noise free, Cross-talk free design.

• Separated Power supply circuits and trans for Digital 3.3V/1.0V, DAC Vdd +/-5V and Analog Vcc +/- 13V.
• Impedance controlled four layer P.C.B.
  
• Fully isolated circuit and P.C.B. layout design between Digital block and DAC/Analog block.
  
• ESD protected input/output and low EMI design.