英國 CHORD QUTEST DAC 高階數位類比轉換器介紹
Chord Qutest 介紹
hord新推出的「Qutest 純DAC」，簡約俐落的外型設計、搭配飛航級鋁合金外殼，提供電路板穩固的保護與良好的散熱。內部核心採用與Hugo2相同的Xilinx Artix 7 (XC7A15T) FPGA數位解碼晶片，最高支援至768kHz/32bit、DSD512。輸出入端子針對家用備有一組USB Type B（768kHz/32bit）、兩組BNC（768kHz/32bit）、一組光纖（192kHz/24bit）輸入端子，輸出則是一組RCA。較特殊的是Qutest除了有四組Filters可供選擇外，還新增了1、2、3V RMS三組增益供玩家使用。小巧外型下，隱藏著強大的數類解碼性能，讓您毫不費力、遊走在各個音響系統，輕鬆享受高音質的魅力。
■ Chipset: Chord Electronics custom coded Xilinx Artix 7 (XC7A15T) FPGA
■ Tap-length: 49,152
■ Pulse array: 10 element pulse array design
■ Frequency response: 20Hz – 20kHz/- 0.2dB
■ Output stage: Class A
■ Output impedance: 0.025Ω
■ THD: <0.0001% 1kHz 3v RMS 300Ω
■ THD and noise at 3v RMS: 117dB at 1kHz 300ohms ‘A’ wighted (reference 2.5v)
■ Noise 2.6 uV ‘A’ weighted: No measurable noise floor modulation
■ Channel separation: 138dB at 1kHz 300Ω
■ Weight: 770g
■ Dimensions: 41mm (H) x 160mm (W) x 72mm (D)
■ Boxed Weight: 1500g
■ Connectivity (input): USB Type B (White): 44.1kHz – 768kHz – 16bit – 32bit
■ 2x BNC Coax (Red): 44.1kHz – 768kHz – 16bit – 32bit
■ Optical (Green): 44.1kHz – 192kHz – 16bit – 24bit
■ Connectivity (output): 1x stereo pair of RCA (Left and Right)
■ PCM support: 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 358.8kHz, 384kHz, 717.6kHz, and 768kHz.
■ DSD support: Native playback supported. DSD64 (Single) to DSD512 (Octa-DSD)
■ Variable output: Fixed, but able between 3v (blue), 2v (green), and 1v (red) via dual press of ‘Filter’ ‘Input’ upon startup
■ Device Power Supply: 5v 2amp Micro USB
■ Driver support: Driverless with Mac OS X and Linux, driver required for Windows OS
■ Digital designer: Rob Watts / Mechanical Designer: John Franks
■ Country of manufacture: England
