iFi Audio
iFi Audio SPDIF iPurifier2
Best signal cleaner for audiophiles upgrading digital home entertainment systems.
Unlock pristine sound from your favorite digital sources with the iFi SPDIF iPurifier2. This compact upgrade dramatically reduces jitter and eliminates noise from your S/PDIF signal, delivering clearer, more immersive audio from TVs, gaming consoles, streamers, and CD transports. It supports Dolby Digital, DTS, DoP, and full HD audio up to 192kHz, making it ideal for high-res listening. Featuring advanced femto clock technology, galvanic isolation, and dual output (optical + coaxial), it offers ultimate flexibility and performance for your audio setup.
$189.99
Owner Satisfaction
4.5
/ 5
Category Rank
126
/ 204
#126 in Effects Processors
Price vs Category Average
-58%
Below average
Supported Signals
44.14888.296176.41921624
/ /////kHz; to Bit, DSD/DoP, Dolby Digital, DTS
Who it's for
- Audiophiles seeking a cleaner and more detailed soundstage
- System builders needing versatile coaxial and optical connectivity
- Listeners demanding a precise and stable digital audio stream
Who should skip it
- Budget-conscious buyers prioritizing core components over signal accessories
- Casual listeners who may not notice subtle sonic refinements
- Minimalists wanting to avoid extra cables and equipment clutter
Performance breakdown
Jitter Reduction
Femto clock technology effectively eliminates timing errors for a cleaner signal.
Signal Integrity
Galvanic isolation and EMI shielding ensure a pristine, noise-free audio path.
Format Compatibility
Handles high-res audio and surround formats with impressive, bit-perfect accuracy.
Connectivity Versatility
Dual outputs and format conversion offer exceptional flexibility for complex setups.
Build Quality
Compact, robust design featuring high-grade components and gold-plated connectors.
Ease of Integration
Simple plug-and-play setup that instantly upgrades standard digital source outputs.
Key Specs
Supported Signals
44.1/48/88.2/96/176.4/192kHz; 16 to 24 Bit, DSD/DoP, Dolby Digital, DTS
Input
Combo optical mini-jack & gold-plated co-axial connector (impedance 75 Ohms)
Outputs
Gold-plated co-axial connector (impedance 75 Ohms) & optical mini-jack
Power Supply
Type-C USB, 5V/500mA (iPower 5V included)
Dimensions
76(l) x 19(w) x 20(h)mm / 3.0” x 0.7” x 0.8”
Weight
56g (1.98oz)
Warranty period
12 months
Features
- Turbocharge your home audio for stunning sound that matches picture quality.
- Solves S/PDIF signal transmission issues common in devices like Apple TVs, PS5, Xbox, and 8K Smart TVs.
- Delivers a fully restored, jitter-free signal for greater dynamic contrast, warmth, and sharper detail.
- Features a super-fast 10MHz Global Master Timing femto clock for reduced jitter.
- Includes Tantalum 100uF capacitors for better power supply ripple and improved MCU firmware for performance optimization.
- Galvanic isolation and gold-plated EMI/RFI shielding ensure phenomenal performance.
- Bit Perfect operation; does not over or upsample the signal.
- Can output both S/PDIF and optical simultaneously, and function as a coax to optical converter.
What customers say
Customers consistently praise the iFi Audio SPDIF iPurifier2 for its remarkable ability to elevate digital audio quality. Users frequently report a noticeable enhancement in sound clarity, detail, and overall musicality, transforming their listening experience. Many consider it an excellent investment, providing significant sonic improvements that justify its cost within a high fidelity setup. Its simple integration also contributes to a positive user experience.
Know before you buy
It acts as a signal cleaner and re-clocker. It takes the jittery, noisy digital signal from devices like streamers or consoles, strips away the interference, and outputs a clean, stable signal to your DAC.
Yes, the device features both optical and coaxial inputs and outputs. It can function as a converter, allowing you to bridge different types of digital connections simultaneously.
No, the iPurifier2 operates in 'Bit Perfect' mode. It does not oversample or alter the original data, ensuring the signal remains exactly as the source intended.
Yes, it supports a wide range of formats including Dolby Digital, DTS, DoP, and high-resolution PCM audio up to 192kHz.
The unit comes with an iFi iPower 5V supply included in the box. You simply connect it via the USB-C port to ensure the device has clean, stable power.
Absolutely. Gaming consoles and TVs often have noisy digital outputs; the iPurifier2 cleans up that signal, which typically results in better dynamic contrast and clearer, more detailed sound when connected to an external DAC.
Still have a question?
Ask Hayley anything about this product before you decide.
Ready to buy?
$190