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Postanowiłem podzielić się informacją o nadchodzącym nowym wzmaku od xDuoo z górnej półeczki u tego producenta. Opis po angielsku ale chyba wszystko jasne: XD-05 is a latest full-featured hi-end portable headphone amplifier releaesd by xDuoo Tech company, which contains high performance USB, optical fiber, coaxial audio decoding and headphone amp in a tiny body, and with an OLED display, real time display digital information flow. Can be connected to WINDOWS, IOS and Android system with USB, supporting PCM 32BIT/384KHZ，DSD256，DXD 32BIT/352.8KHZ, and also can be connected to all kinds of DAP output with coaxial gang concentric or Fiber, supporting PCM 24BIT/192KH. External with Gain settings, Bass boost settings, DAC filter settings and SRC set function. This product is disigned for connecting the PC, mobile phone, and other players of the digital audio interface in order to gain high quality audio, and listen to the wonderful music. Features: ◆Support PC USB audio decoder functions, work in asynchronous transfer mode, and supports WASAPI, ASIO and KS kernel flow mode, PCM, maximum support 32BIT/384KHZ; DSD support DOP, NATIVE mode, support maximum DSD256; DXD 32BIT/352.8KHZ ◆Using Apple Camera Connection Kit line connection, support for iPod, iPhone, iPad audio decoding function and PCM maximum support 24BIT/192KHZ, DSD maximum support DSD128 (Note: Apple's IOS limit maximum can only support DSD128) ◆Using USB OTG cable connection, support for Android phones' and music players' audio decoding, PCM, maximum support 24BIT/192KHZ DSD maximum support DSD128 (Note: Android limits the maximum can only support DSD128) ◆Support coaxial audio decoding, the maximum support 24bit / 192Khz digital signal can be connected with a coaxial audio output function of the playback device to obtain the high quality of sound. ◆Support Fiber audio decoding, the maximum support 24bit / 192Khz digital signal can be connected with a coaxial audio output function of the playback device to obtain the high quality of sound. ◆Support AUX input / output function. ◆Audio processing chip: USB audio processor by XMOS latest 8 core processing chip: U8a chip; Fiber / Coaxial audio processor by Cirrus logic cs8416 chip; DAC processor uses the AKM's top chip AK4490 and native support for DSD, DXD and PCM signal. ◆The amp part uses OP+BUF structure, which is dynamic and with strong driving ability ◆Using efficient power conversion chip, provide +/-9V power to the power amplifier chip, OCL circuit structure, greatly improve the dynamic range of output signal, can dirve headphones easily. ◆The external 3 gears of gaining, suitable for different Headset collocations. ◆The external 2 gears bass boost, satisfying all kinds of requirements. ◆The external DAC chip filter adjustment, to gain different listening experience. ◆The external SRC adjustment, to gain different listening experience. Tech spec: Battery: 3.7V/4000mAh rechargeable lithium polymer battery within Display: 0.91 inch OLED screen System: Win7, Vista, XP Win8, Mac, OS X Win, IOS, Android system Output power: 500mW (32Ωload) Frequency response: AMP:10Hz~100KHz (±0.5dB) USB/SPDIF: 20Hz~20KHz (±0.5dB) Sampling rate support: USB PCM:16-32BIT/44.1-384KHZ DSD: DOP/NATIVE mode, DSD64-256 (1bit/2.8M-11.2M) DXD:BIT/352.8-384KHZ 24-32 OPT/COA PCM:16-24BIT/44.1-192KHZ Gain: +3/+6/+15dB Bass boost: 0/+6dB Distortion: 0.0025% (1KHz) Noise-Signal: 112dB Adaptation Headset impedance: 8Ω ~ 300Ω. Battery life: >11H (USB IN), >16H (SPDIF IN), >23H (AUX IN) Charging time: Quick charge 5H (with charger), slow charge 11H (with computer) Size: 139.5*75*23mm Weight: 270g Price: 210 USD