{"product_id":"ifi-pro-idsd-signature","title":"iFi Pro iDSD Signature","description":"\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe iFi Pro iDSD Signature is a flagship reference-class DAC designed to serve as the digital hub of a high-performance audio system. Combining a quad-stack Burr-Brown DAC architecture, network streaming, preamplifier functionality, extensive digital processing options, and powerful headphone outputs, it brings iFi's advanced digital technologies together in a single component.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eAt the heart of the Pro iDSD Signature is iFi's custom-coded Crysopeia FPGA Digital Engine, which can upsample incoming PCM and DSD audio to DSD512 or DSD1024. Five selectable digital filters — Bit-Perfect, Bit-Perfect+, GTO, Apodising, and Transient Aligned — provide additional control over digital playback.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe fully balanced Class A analogue stage offers three selectable output modes: Solid-State, Tube, and Tube+. Tube mode brings a pair of hand-selected, matched NOS GE5670 valves into the signal path, while Tube+ increases second-order harmonic content by 6dB for listeners who prefer a stronger valve character.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/6139\/9068\/files\/idsd-a79q6500_1.webp?v=1786966469\" alt=\"iFi Pro iDSD Signature Reference DAC Headphone Amplifier\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eBeyond digital-to-analogue conversion, the Pro iDSD Signature supports network playback over Wi-Fi or Ethernet, AirPlay and DLNA\/UPnP, along with local playback from USB storage and SD cards. Balanced XLR and single-ended RCA outputs can operate in fixed or variable mode, allowing the unit to connect to an integrated amplifier or preamplifier, or drive a power amplifier directly.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Signature edition also features an upgraded internal power supply design and includes iFi's iPower Elite external power supply. For listeners building a high-performance digital system around a single versatile source component, the Pro iDSD Signature combines advanced conversion, flexible analogue output options, streaming, and extensive system connectivity in one chassis.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cspan\u003eQuad-Stack Burr-Brown DAC Architecture\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Pro iDSD Signature uses four Burr-Brown DAC chips in an interleaved quad-stack configuration. This architecture is designed to provide high linearity, excellent channel separation, and detailed digital-to-analogue conversion while retaining the multi-bit characteristics for which iFi's Burr-Brown implementations are known.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cspan\u003eCrysopeia FPGA \u0026amp; DSD1024 Upsampling\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eiFi's custom-coded Crysopeia FPGA Digital Engine enables real-time upsampling of incoming PCM and DSD audio to DSD512 or DSD1024. It also provides five selectable digital filters — Bit-Perfect, Bit-Perfect+, GTO, Apodising, and Transient Aligned — allowing listeners to choose the processing approach that best suits their system and preferences.\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cspan\u003eSwitchable Solid-State, Tube \u0026amp; Tube+ Modes\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe fully balanced Class A analogue stage provides three selectable operating modes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eSolid-State\u003c\/span\u003e\u003cspan\u003e uses iFi's discrete solid-state circuitry for listeners who prefer a direct, neutral presentation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eTube\u003c\/span\u003e\u003cspan\u003e introduces a pair of hand-selected, matched NOS GE5670 valves into the signal path.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eTube+\u003c\/span\u003e\u003cspan\u003e builds on Tube mode by increasing second-order harmonic content by 6dB, providing a more pronounced valve character.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe modes can be selected in real time, allowing listeners to tailor the analogue output stage to their system, music, and personal preferences.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cspan\u003eNetwork Streaming \u0026amp; Local Playback\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Pro iDSD Signature can function as a network audio source without requiring a separate streamer. It supports wireless playback over 2.4GHz Wi-Fi as well as wired Ethernet connectivity, with AirPlay and DLNA\/UPnP support.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eLocal music libraries can also be played directly from compatible USB storage devices or SD\/SDHC cards, providing several ways to access digital music without relying on a computer as the primary source.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cspan\u003ePowerful Headphone Outputs\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Pro iDSD Signature provides single-ended 6.35mm, S-Balanced 3.5mm, and balanced 4.4mm headphone connections. The balanced output delivers more than 4,200mW at 16 ohms and more than 11.7V at 600 ohms, with selectable 0dB, 9dB, and 18dB gain settings.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eWhile the Pro iDSD Signature provides substantial headphone-driving capability, listeners building a system primarily around demanding headphones may also choose to pair it with a dedicated headphone amplifier.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cspan\u003eAnalogue Outputs \u0026amp; Preamplifier Function\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eBalanced XLR and single-ended RCA analogue outputs allow the Pro iDSD Signature to integrate with a wide range of HiFi systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eVariable output enables the front-panel volume control to manage output level, allowing the Pro iDSD Signature to drive a compatible power amplifier directly. Fixed output provides a consistent line-level signal for connection to a preamplifier or integrated amplifier with its own volume control.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eKEY FEATURES\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cstrong\u003eQuad-Stack Burr-Brown DAC Architecture\u003c\/strong\u003e\u003cspan\u003e — Four Burr-Brown DAC chips operate in an interleaved configuration designed for high linearity, channel separation, and detailed conversion.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cstrong\u003eCrysopeia FPGA with DSD1024 Upsampling\u003c\/strong\u003e\u003cspan\u003e — Custom-coded FPGA processing can upsample incoming PCM and DSD audio to DSD512 or DSD1024.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cstrong\u003eFive Digital Filter Options\u003c\/strong\u003e\u003cspan\u003e — Choose between Bit-Perfect, Bit-Perfect+, GTO, Apodising, and Transient Aligned filtering.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cstrong\u003eSolid-State \/ Tube \/ Tube+ Modes\u003c\/strong\u003e\u003cspan\u003e — Three selectable fully balanced Class A analogue operating modes provide different approaches to the output stage.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cstrong\u003eMatched NOS GE5670 Valves\u003c\/strong\u003e\u003cspan\u003e — Tube mode uses a pair of hand-selected and matched NOS GE5670 valves.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cstrong\u003eNetwork Streaming\u003c\/strong\u003e\u003cspan\u003e — Supports 2.4GHz Wi-Fi, Ethernet, AirPlay, and DLNA\/UPnP network playback.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cstrong\u003eLocal Media Playback\u003c\/strong\u003e\u003cspan\u003e — Play compatible music files directly from USB storage devices or SD\/SDHC cards.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cstrong\u003eHigh-Resolution Audio Support\u003c\/strong\u003e\u003cspan\u003e — Supports PCM up to 32-bit\/768kHz, native DSD512, DXD, and full MQA decoding, with DSD1024 available through FPGA upsampling.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cstrong\u003eThree Headphone Connections\u003c\/strong\u003e\u003cspan\u003e — Includes 6.35mm single-ended, 3.5mm S-Balanced, and 4.4mm balanced headphone outputs.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cstrong\u003eFixed or Variable Analogue Output\u003c\/strong\u003e\u003cspan\u003e\u003cstrong\u003e \u003c\/strong\u003e— Use the Pro iDSD Signature as a source component or as a preamplifier driving a compatible power amplifier directly.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cstrong\u003eBalanced XLR \u0026amp; RCA Outputs\u003c\/strong\u003e\u003cspan\u003e — Provides balanced and single-ended analogue connectivity for integration with a wide range of HiFi systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cstrong\u003eiPower Elite Included\u003c\/strong\u003e\u003cspan\u003e — The Signature edition includes iFi's iPower Elite external power supply.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cspan\u003eCONNECTIVITY \u0026amp; COMPATIBILITY\u003c\/span\u003e\u003c\/h4\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eDigital Inputs\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eUSB Type-B asynchronous input\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eAES3 via XLR\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eS\/PDIF coaxial \/ optical combo input\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eBNC S\/PDIF \/ clock connection\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eUSB 1.0 support for compatible PS4 and PS5 connections\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eNetwork Connectivity\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003e2.4GHz Wi-Fi\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eRJ45 Ethernet\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eApple AirPlay\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eDLNA\/UPnP\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eLocal Media\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eUSB-A host port for compatible USB storage\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eSD\/SDHC card slot\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eAnalogue Outputs\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eBalanced XLR — fixed or variable\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eSingle-ended RCA — fixed or variable\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eHeadphone Outputs\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003e6.35mm single-ended\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003e3.5mm S-Balanced\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003e4.4mm balanced\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eBalanced output: \u0026gt;4,200mW at 16 ohms \/ \u0026gt;11.7V at 600 ohms\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eSelectable gain: 0dB \/ 9dB \/ 18dB\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eSupported Audio\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003ePCM: up to 32-bit\/768kHz\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eDSD: up to native DSD512\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eDSD1024: via FPGA upsampling\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eDXD: up to 2×DXD\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eMQA: full decoding\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eDigital Filters\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eBit-Perfect\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eBit-Perfect+\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eGTO (Gibbs Transient Optimised)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eApodising\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eTransient Aligned\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eOutput Modes\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eSolid-State\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eTube\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eTube+\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"iFi Audio","offers":[{"title":"Default Title","offer_id":54420348698908,"sku":null,"price":3249.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0833\/6139\/9068\/files\/zen_9.png?v=1786433011","url":"https:\/\/rockonav.com\/products\/ifi-pro-idsd-signature","provider":"RockOnAV","version":"1.0","type":"link"}