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iFi Audio

iFi Audio Pro iDSD Signature DAC / Streamer / Headphone Amp

iFi Audio's all new reference-class standalone streamer and DAC/Amp flagship, all with the X-factor!

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Top of line DAC and so much more.

The Pro iDSD Signature is iFi Audio's new flagship reference class DAC and then some! The Signature edition builds on the strengths of the original, multi-award winning Pro iDSD, as it continues to cater for those who love good music delivered at the highest quality.

A Signature step up

The Signature takes the original Pro iDSD and pushes it even further towards perfection. Upgrades to the Pro iDSD Signature include:

  • A sonically darker background and a punchier bass
  • Upgraded power -supply components to lower the overall system noise by 300%
  • Precisely matched NOS GE5670s tubes
  • Added support for USB1.0 (PS4/PS5)
  • New aluminum remote control
  • Top-of the range iPower Elite power supply included
Stacked. With tech.

The Pro iDSD Signature uses a quad-stack DAC – 4 x DACs in an interleaved configuration – to deliver exceptional resolution. The powerful XMOS XU216 X-Core 200 series chipset processes incoming digital data and enables the Pro iDSD Signature to provide state of the art audio support – from MP3, 32-bit/768kHz PCM, DSD512, 2xDXD and full MQA decoding.

Thanks to the Crysopeia FPGA Digital Engine the Pro iDSD Signature brings studio grade DSD remastering to a wider audience. It can up-convert PCM and DSD files to DSD512 and DSD1024, all controlled from an app in the palm of your hand.


The Pro iDSD Signature, like its predecessor, takes sonic tailoring to the extreme. Listen to your music in solid-state, tube or tube+ modes, your choice, all at the flick of a switch. The Crysopeia FPGA Digital Engine strikes again as it enables the Pro iDSD Signature to offer several options when it comes to digital filtering. The GTO filter adds gravitas and a new dimension, and while the Bit Perfect, Bit Perfect+, Apodising and Transient Aligned filters give you even more choices to tweak the sound. The discrete, fully balanced Class A amplifier stage offers adjustable gain.

Your choice. The only choice.

The Pro iDSD Signature gives you the power and the choice to enjoy music wherever, whenever and from whatever platform you want! Pro iDSD supports the following platforms and interfaces:

  • Stream wirelessly from Tidal, Spotify, Napster, QQ Music and more
  • Use Airplay to enjoy playback from your iPhone, iPad or Mac
  • Go wired via an Ethernet connection to play from a router or NAS (Network Attached Storage)
  • Use DLNA network audio playback with smartphones, tablets, Windows/Linux computers
  • Connect to a hard disc drive (HDD)
  • Pop in a USB memory stick or SDHC card

Plus with a variety of headphone outputs – Single-Ended 6.3mm, S-Balanced 3.5mm and Balanced 4.4mm – the only choice is your choice!

Power cleans. Absolute.

The Pro iDSD Signature ships with iFi Audio's flagship iPower Elite. Coupled with the re-crafted power supply board which offers up to 300x lower noise, the music is buttery smooth. Within and without – no stone was left unturned in the quest for the cleanest, purest, power for the Pro iDSD Signature (same for Pro iCAN Signature too!)

What's Included

• iFi Audio Pro iDSD Signature

• iPower Elite AC adapter with attached DC output cord and AC power cord (3-prong IEC)

• Remote Control

• 3.0 USB-A to USB-B Cable & Optical digital connector adapter

• RCA Stereo Interconnects

• Wi-Fi Antenna

• Plastic Screw Driver

• 12 month factory warranty registration card

Input / Output

• USB 3.0 (required for DSD, DXD and sample rates above 192KHz) with MQA Support, and dedicated USB HDD Input

• AES3/EBU (XLR – single link), S/PDIF, BNC Clock Input, BNC Clock Output

• SDHC Input up to 128GB, Ethernet (NAS or Router ect...), Built-in Wi-Fi, Apple AirPlay and DLNA

• PCM up to 768kHz, DSD up to 49.152MHz (DSD 1024) and DXD and double-speed DXD (2xDXD)

• Balanced XLR & Single-Ended RCA

The Specs

• Sample rates: PCM 768kHz / DSD 49.152MHz (DSD 1024) / MQA 352.8KHz/DXD (2xDXD)

• Filters: Bit Perfect / Bit Perfect+ / Gibbs Transient Optimized / Apodising / Transient Aligned

• Gain: User-selectable: 0dB, 9dB and 18dB (headphone section)

• Dynamic range: 119dBA (solid-state, PCM, -60dBFS)

• Output power 4.4mm (@16Ω, balanced/single-ended): >4200mW /1575mW

• Output voltage (600Ω, balanced/single-ended): 11.7V / 5.9V

• Input voltage (Pro iDSD): DC 9V/6.7A – 18V/3.35A

• Input voltage (iPower Elite): AC 85 – 265V, 50/60Hz

• Power Consumption (No Signal) ~22W idle (Max Signal) ~50W

• Weight: (4.37 Ibs) & Dimensions (W)8.7" x (D)8.4" x (H)2.5"

Compatible Operating Systems

• iOS & Mac via Apple Lightning to USB Camera Adapter

• Windows via USB or Android via USB OTG Cable


About iFi Audio

iFi audio is an award winning audio tech company with one aim in mind – to improve your music enjoyment. They create products that improve sound quality and eradicate noise, distortion and hiss from your Headphones, Speakers, Portable audio devices and Phones allowing you hear studio-quality audio as your favorite artists intended.