iFi Unveils the iDSD Phantom: A New Flagship Reference Streaming DAC & Headphone Amp

Frank Sterling January 27, 2026 Sources

British audio specialist iFi Audio, having already cemented its reputation for producing high-performance DACs and headphone amplifiers, is targeting the ultra-high-end market with its latest release. The company has announced the iDSD Phantom, a flagship reference-class streaming DAC and headphone amplifier system, priced at approximately £4,499.00.

Here is what makes the iDSD Phantom stand out:

World’s First DSD2048 Implementation

The iDSD Phantom marks a significant milestone by bringing DSD2048 playback into the home listening environment for the first time. Utilizing iFi’s proprietary Crysopeia FPGA engine, the system inherits technology previously reserved for Japanese mastering studios to achieve DSD2048 remastering.

The architecture employs four Burr-Brown DSD1793 DAC chips operating in a custom interleaved configuration. This setup allows for native decoding of signals up to DSD2048, unveiling ultra-granular low-level detail and delivering a performance that rivals professional studio remastering.

Three Sonic Signatures, One Phantom

The Phantom offers a versatile "three-in-one" listening experience, allowing users to switch effortlessly between distinct sonic profiles:

Solid-State Mode: Utilizes discrete J-FETs to deliver a sound signature characterized by speed, precision, and transient attack.
Tube Mode: Engages hand-matched NOS GE5670 vacuum tubes, offering a fluid, smooth, and organic timbre.
Tube+ Mode: Further accentuates the tube characteristics, minimizing negative feedback to deliver the warm, lush harmonics reminiscent of the golden age of hi-fi.

With a massive peak output power of 7,747mW, the Phantom is designed to drive even the most demanding headphones with perfect synergy.

Seamless Streaming with Qobuz Connect

Powered by a newly developed high-resolution streaming engine, the iDSD Phantom supports Qobuz Connect, alongside widely used services like Tidal Connect, Spotify Connect, and AirPlay 2.

This evolution brings improved system stability and smoother internet radio performance. It is controlled via the upgraded Nexis App, which offers an intuitive, highly customizable interface, making it easier than ever to manage playback from anywhere in the home.

Studio-Grade Restoration with K2 Technology

In a notable collaboration with JVCKENWOOD, the Phantom incorporates K2 and K2HD technology. This processing reconstructs harmonic data lost during the original recording or digital encoding process, effectively restoring the musicality, air, and vitality of the original performance.

The Finishing Touches: Analog Processing

XBass Pro: This is iFi’s proprietary analog shelving EQ. It offers three distinct settings (10, 20, and 40Hz) to inject low-frequency energy and body without muddying the midrange clarity.
XSpace Pro: Going far beyond standard crossfeed circuits, XSpace Pro addresses the "in-head localization" problem common with headphones. It pushes the soundstage out to create a speaker-like presentation without sacrificing imaging. Users can select from 30, 60, and 90-degree settings to find the most natural spatial rendering for their specific gear.

Additionally, a selection of digital filters is available to fine-tune the time-domain response.

Re-engineered from the Ground Up

The Phantom features a newly designed constant impedance negative feedback system. This ensures that XBass Pro, XSpace Pro, and the DSD Remastering engine work in perfect unison. A dedicated common-mode servo circuit ensures smooth switching when engaging XBass and maintains low-frequency consistency at high output levels. Furthermore, the voltage supply to the tubes has been meticulously fine-tuned to maximize the linearity of the audio output.

Technical Specifications

ANALOGUE INPUTS

Balanced Headphones RMS: ≥4,676mW/17.3V (@64Ω); ≥564mW/18.4V (@600Ω)
Balanced Line Outputs (VRMS): 0-4.5V (Hi-Fi mode); 0-18V (Pro mode)

DIGITAL INPUTS

1x USB-B 3.0
2x USB-A (Host)
1x USB-C (Host)
1x S/PDIF (Coaxial)
1x AES3 (XLR)
1x RJ45 (Ethernet)
1x M12
1x Optical (SC)
1x BNC (Sync in)

AUDIO PERFORMANCE

Hi-Res Support: PCM up to 768kHz; DSD512 (DSD2048 via Remastering)
DNR (20-20kHz): ≥116dBA @ 600Ω Balanced; ≥115dBA @ 600Ω Single-Ended
SNR (Max Output 20-20kHz): ≥116dBA @ 600Ω Balanced; ≥114dBA @ 600Ω Single-Ended
THD+N: <0.005% @ 16Ω Balanced (2.4V, 20-20kHz); <0.01% @ 16Ω (1.27V, 20-20kHz)
Output Noise (Max Output 20-20kHz): <30uV(A) @ 600Ω Balanced; <20uV(A) @ 600Ω Single-Ended

OUTPUTS

Headphone Outputs: 1x 3.5mm S-Balanced; 1x 4.4mm Balanced; 1x 4-pin XLR; 1x 3-pin XLR (L/R); 1x 6.3mm (Standard Phase); 1x 6.3mm (Inverted Phase)
Line Outputs: 1x Balanced XLR (L/R); 1x RCA (L/R)

GENERAL

Streaming Platforms: Tidal Connect, Spotify Connect, Qobuz Connect, Roon, Airplay, DLNA, UPnP
Dimensions: 256 x 185 x 120mm
Net Weight: 3.6kg (7.93 lbs)
Power Consumption: <27W idle; 75W max.

SINGLE-ENDED PERFORMANCE