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iFi Audio SPDIF iPurifier2 Digital Optical/Toslink/Coax Audio Signal Optimizer/Purifier/Conditioner

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  • $ 199

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Reduce digital audio jitter from S/PDIF signals with the iFi AUDIO S/PDIF iPurifier2. It features an RCA digital coaxial and 1/8" optical input and output and supports multiple digital format types, including Dolby Digital and DTS.

Bit Perfect Engineering
The iPurifier2 is designed to be bit perfect – to not over-sample or up-sample the signal. It's compatible with DTS, Dolby Digital, and DoP signals and supports signals up to 192 kHz. It works with optical and digital coaxial connections from nearly any S/PDIF source, and can output to both optical and digital coaxial at the same time, allowing for simultaneous connection to two audio systems. It can also function as a digital coaxial to optical converter.

Four-Stage Process
The signal goes through four stages: isolation, regeneration, a memory buffer, and re-clocking. This is designed to restore the square wave, which represents the desired signal, restoring the S/PDIF signal without jitter with more warmth, resolution, and dynamic contrast.

GMT Memory Buffer System
AMR's Global Master Timing (GMT) / Memory Buffer System is engineered to solve the S/PDIF digital signal jitter problem. Reclock and Regenerate are designed to add further strength and fidelity to the signal.

Galvanic Isolation
The galvanically isolated S/PDIF output separates the electrical circuits to help eliminate stray elements, so only the signal can pass through for virtually interference-free audio.


  • Designed to reduce jitter for enhanced dynamic contrast, warmth, and detail
  • Digital Coaxial & 1/8" Optical Inputs
  • Digital Coaxial & 1/8" Optical Outputs
  • 10 MHz Global Master Timing femto clock
  • Four tantalum 100μF capacitors to augment the power supply ripple
  • MCU firmware for performance optimization
  • Galvanic isolation, gold-plated EMI/RFI shielding, and the included iPower power supply help boost performance

In the Box

  • iFi AUDIO S/PDIF iPurifier2
  • iFi AUDIO iPower Ultra-Low Noise AC/DC Audiophile Power Supply (5V)
  • Limited 1-Year Warranty


  • Supported Signals 44.1 / 48 / 88.2 / 96 / 176.4 / 192 kHz
  • 16 to 24-Bit, DSD/DoP, Dolby Digital, DTS
  • Input
  • 1 x 1/8" / 3.5 mm Optical
  • 1 x Gold-Plated RCA Digital Coaxial (75 Ohms)
  • Output
  • 1 x 1/8" / 3.5 mm Optical
  • 1 x Gold-Plated RCA Digital Coaxial (75 Ohms)
  • Power Supply 5 V / 500 mA via Micro-USB
  • Dimensions (W x H x D) 0.74 x 0.79 x 2.8" / 19 x 20 x 71 mm
  • Weight 1.98 oz / 56 g

WARNING: California Residents - Proposition 65. This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to



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