The PCM2704 Sound card connects to your computer via a USB cable and configures as an audio output device. The primary purpose is to create a high quality S/PDIF digital audio output signal that can connect to your existing DAC. It also has a convenient headphone output for private audio listening. PCM2704 Sound card is powered by the USB cable, so there are no wall-warts or batteries to worry about. Use it standalone or build right into your DAC. Operation and setup is plug-and-play, no drivers to install.

PCM2704 Sound card provides the easiest way to convert your PC into a hi-end music server. Join the hundreds who have already upgraded. Once you get used to playing CDs from your computer, you'll never want to go back to a traditional transport.


PCM2704 Sound card is compatible with both Windows XP and Mac OS-X. For best playback in Windows we recommend the driver from www.usb-audio.com and a player such as foobar2000 or Winamp.
 
Specification:
Input: USB
Output: COAXIAL X1, PHONE X1,OPTICAL X1,RCA X1
Accessories: USB CABLE X1

• On-Chip USB Interface: – Serial Programming Interface (PCM2705/7)
– No Need of Dedicated Device Driver
– With Full-Speed Transceivers – Fully Compliant With USB 1.1
– Adaptive Isochronous Transfer for
• USB Headphones
Playback
• USB Audio Speaker
• Sampling Rate: 32, 44.1, 48 kHz
• USB Audio Interface Box
– THD+N: 0.006% RL > 10 k?,
– THD+N: 0.025% RL = 32 ?
– SNR = 98 dB
– Dynamic Range: 98 dB
 – Pass-Band Ripple = ±0.04 dB
– Stop-Band Attenuation = –50 dB