{"product_id":"d-a-alpha-pro-hi-res-premium-dac-headphone-amp-dsd512-pcm-768khz-32bit-usb-decoder-es9039mspro-chip-flagship-amplifier","title":"D\u0026A Alpha Pro Hi-Res DAC Headphone Amp Decoder","description":"\u003cp\u003e\u003cbr\u003eProduct Parameters:\u003cbr\u003eInputs: USB \/ Optical \/ Coaxial \/ Bluetooth \/ RCA\u003cbr\u003eOutputs: XLR\/RCA\/XLR headphones\/4.4mm headphones\/6.35mm headphones\u003cbr\u003eLine output voltage: \u003cbr\u003eXLR------5.2Vrms\u003cbr\u003eRCA------2.5Vrms\u003cbr\u003eHeadphone output level: \u003cbr\u003e4000mW x2(16Ω)\u003cbr\u003e6000mW x 2(32Ω)\u003cbr\u003e1400mW x 2(150Ω)\u003cbr\u003e700mW x2(300Ω)\u003cbr\u003e350mW x2(600Ω)\u003cbr\u003eTHD+N： \u003cbr\u003eXLR----------0.00006%(-124dB)(UN-WTD)\u003cbr\u003eRCA---------0.00007%(-122dB)(UN-WTD)\u003cbr\u003eHP-----------0.0001%(-115dB)(UN-WTD)\u003cbr\u003eDynamic range\/ SNR: \u003cbr\u003eXLR--------133dB\u003cbr\u003eRCA-------128dB\u003cbr\u003eHP---------125dB\u003cbr\u003eOutput Impedance: \u003cbr\u003eLINE OUT----------100Ω\u003cbr\u003eHP OUT------------Near 0Ω\u003cbr\u003eHeadphone Amplifier High Gain：\u003cbr\u003eBalanced +15.8dB\u003cbr\u003eUnbalanced +9.8dB\u003cbr\u003eUSB transmission: USB2.0(Asynchronous)\u003cbr\u003eUSB compatibility: Windows 7 \/ 8 \/ 8.1 \/ 10 \/ 11(Needs Driver),\u003cbr\u003eMac OSX, i0S, Linux, ANDROID\u003cbr\u003eMQA decoder: USB \/ Optical \/ Coaxial\u003cbr\u003eMQA-CD decoder: Optical \/ Coaxial\u003cbr\u003eMax supported sampling rate: \u003cbr\u003eUSB decoding------------------Up to 768kHz\/32bit; DSD512 (Native)\u003cbr\u003eCoaxial input decoding--------Up to192kHz\/24bit; DoP64\u003cbr\u003eOptical input decoding--------Up to192kHz\/24bit; DoP64\u003cbr\u003eBluetooth specification: 5.1(Support SBC, AAC, aptX, aptX HD, LDAC)\u003cbr\u003ePower Consumption: \u0026lt;50W\u003cbr\u003eStandby power: \u0026lt;0.5W\u003cbr\u003eSize: 225 x 55 x 199.3mm (WxHxD)\u003cbr\u003eWeight: 1.76kg \/3.88lb\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e【ES9039MSPRO Flagship DAC Chip】 Harnessing ESS's flagship ES9039MSPRO DAC with MQA hardware decoding, HyperStream technology, and fully isolated digital\/analog processing, the Alpha Pro eliminates jitter via 32-bit noise shaping and proprietary \"Zero-Jitter Clock\" architecture. Our \"SIGMA DAC\" topology employs 8-channel differential signal summation per channel, reducing output impedance by 4x and noise by 75%, achieving unmatched dynamic range (133dB) and THD+N(-124dB).\u003c\/li\u003e\n\u003cli\u003e【4C-FBDA Fully Balanced Discrete Amplification】 Featuring 32 discrete transistors across four channels, the 4C-FBDA circuit achieves \u0026lt;0.1Ω output impedance and 0.0001% THD. Effortlessly driving 16Ω-600Ω headphones, it delivers 6000mW+6000mW at 32Ω with zero dynamic compression.\u003c\/li\u003e\n\u003cli\u003e【Pure Preamplifier Function】 Equipped with NJU72315 analog volume control-the industry's highest-performance chip-Alpha Pro eliminates micro-detail loss at low volumes while attenuating external noise.\u003c\/li\u003e\n\u003cli\u003e【Analog Input】 A groundbreaking analog input circuit supports turntables and tape decks, serving as a standalone preamplifier for 90%+ legacy audio systems. *Note: Requires phono preamp-enabled turntables.\u003c\/li\u003e\n\u003cli\u003e【Dual-Domain Isolation Architecture】 Digital and analog modules are physically segregated via 4-layer PCB isolation and independent ground planes. Shielded blocks and star-quad power routing ensure zero crosstalk between DSP processing and DAC conversion.\u003c\/li\u003e\n\u003cli\u003e【Built for perfect reproduction】 Three femtosecond-grade oscillators-two for local USB clocks and one VCXO for the 2nd PLL-slash jitter to 15ps (10x lower than conventional designs), ensuring sharper imaging, better detail, and a more natural sound across every input.\u003c\/li\u003e\n\u003c\/ul\u003eIntroducing the Alpha Pro—a premium DAC and headphone amplifier engineered for audiophiles who demand pristine sound quality.\n\n**What You Get**\n\nThe ES9039MSPRO flagship DAC chip with MQA hardware decoding delivers exceptional clarity and detail. Its advanced \"SIGMA DAC\" topology achieves industry-leading dynamic range (133dB) and ultra-low distortion (THD+N at -124dB), eliminating jitter through proprietary zero-jitter clock architecture.\n\nThe fully balanced discrete amplifier features 32 transistors across four channels, driving headphones from 16Ω to 600Ω with up to 6000mW per channel at 32Ω—no dynamic compression.\n\n**Connectivity \u0026amp; Flexibility**\n\nConnect via USB, optical, coaxial, Bluetooth 5.1, or RCA. Supports sampling rates up to 768kHz\/32-bit and DSD512 via USB. Works as a standalone preamplifier for turntables and legacy audio systems.\n\n**Built for Precision**\n\nDual-domain isolation architecture separates digital and analog circuits completely. Three femtosecond-grade oscillators reduce jitter to just 15ps, ensuring sharper imaging and more natural sound reproduction across all inputs.\n\nCompact, efficient, and compatible with Windows, Mac, iOS, Linux, and Android.","brand":"Fanmusic","offers":[{"title":"Default Title","offer_id":63738652066161,"sku":"B0F9NWNQWN","price":699.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1017\/2471\/7425\/files\/41hvyrTJ4tL.jpg?v=1780654593","url":"https:\/\/bassology.mom\/products\/d-a-alpha-pro-hi-res-premium-dac-headphone-amp-dsd512-pcm-768khz-32bit-usb-decoder-es9039mspro-chip-flagship-amplifier","provider":"Bassology","version":"1.0","type":"link"}