iFi Audio SPDIF iPurifier2 – Jitter-Free Digital Signal Buffer

The iFi Audio SPDIF iPurifier2 is a compact inline device designed to clean up your S/PDIF signal for deeper, more accurate playback. By reclocking, isolating, and regenerating the digital stream, it removes timing errors and interference, delivering a clearer, more immersive listening experience.

Key Features

• 10 MHz Global Master Timing femto clock: Provides ultra-fast, precision reclocking to eliminate jitter at the source.
• Galvanic isolation: Separates source and DAC circuits to block noise and ground interference.
• Four-stage signal correction: Isolation, regeneration, buffering, and reclocking work together to restore full signal integrity.
• Dual output paths: Simultaneously outputs both coaxial and optical formats—and can convert one signal type to the other.
• Bit-perfect processing: Delivers audio unchanged—supports PCM up to 192 kHz, Dolby, DTS, DSD/DoP without oversampling.
• Ultralow-noise power: Includes a ‘quieter-than-battery’ iPower 5 V supply to minimize noise in the digital chain.

Customer Benefits

Adding the SPDIF iPurifier2 between your source and DAC eliminates timing errors and electromagnetic noise, resulting in subtle but noticeable improvements in warmth, depth, and dynamic contrast. Movies sound fuller, music gains clarity—especially valuable for tighter digital systems.

Quick Specs

• Dimensions: 7.6 × 1.9 × 2.0 cm
• Weight: 56 g
• Supported formats: PCM up to 192 kHz, Dolby Digital, DTS, DSD via DoP
• Inputs: Coaxial S/PDIF & mini-Toslink combo (75 Ω)
• Outputs: Gold-plated coaxial (75 Ω) & optical mini-Toslink
• Power: USB-C input; 5 V / 500 mA; includes iPower 5 V supply

What’s in the Box

• SPDIF iPurifier2 unit
• iPower 5 V ultralow-noise power supply
• User manual

Use Cases / Ideal For

Perfect for upgrading digital systems prone to jitter—like TVs, CD transports, gaming consoles, or set-top boxes. Ideal when feeding DACs via coaxial or optical inputs, especially where clean timing and analog performance matter.

Compatibility

Works with any device using S/PDIF (coaxial or TOSLINK). Installs between source and DAC without setup. Supports simultaneous output to two devices and converts between coaxial and optical formats as needed.

Pros & Cons

✅ Pros:

• Substantially reduces jitter for clearer, more musical playback
• Compact, plug-and-play design—no software or drivers needed
• Dual outputs and format converter add flexibility

⚠️ Cons:

• Benefits vary depending on source quality and system setup
• Requires dedicated power supply and space in the signal chain

The iFi Audio SPDIF iPurifier2 subtly elevates sound quality by restoring digital signal integrity, making it a simple yet effective enhancement for refined audio listening.