剛由音悅代理不久，SCHIIT這家來自美國以耳擴聞名的公司推出了現在正夯的產品：BIFROST DAC，價格為USD 349，若要有24/192的USB輸入，則再加價USD 100即可，預計8月31日可開始出貨。
http://www.my-hiend.com/leoyeh/2011a...main-3view.jpg
Bifrost使用32Bit AKM4399的D/A轉換，完全動差類比部份與高精度的時鐘管理系統與可選配最先進非同步的USB。此外Bifrost還有非常方便的未來升級方式，只要將模組更換就行了。24/192 非同步USB 2.0以 C-Media CM6631 USB接收晶片為基礎，MAC不需要驅動程式，Windows則需要。
Specifications
Inputs: Coaxial SPDIF, Optical SPDIF, USB (optional)
Input Capability: up to 24/192 for all inputs
Input Receiver, SPDIF: Crystal Semiconductor CS8416
Input Receiver, USB: C-Media CM6631
D/A Conversion IC: AKM4399
Analog Summing, Filtering: Fully Discrete, DC Coupled
Output: Dual RCA (single-ended)
Output Impedance: 75 ohms
Frequency Response, Analog Summing Stage: 2Hz-100KHz, -1dB (actual frequency response limited by sample rate)
Maximum Output: 2.2VRMS
THD: Less than 0.001%, 20Hz-20KHz
S/N: Greater than 108dB
Power supply: 5 stages of regulation, including separate supplies for critical digital and analog sections.
Upgradability: Separate, modular USB Input Card and DAC/Analog Card are snap-in replaceable.
Power Consumption: 15W
Size: 9 x 6.75 x 2.25”
Weight: 5 lbs
http://schiit.com
