---
product_id: 448860733
title: "AC iPurifier - Mains Audio/Video Noise Eliminator/Line Conditioner/Filter/Isolator/Purifier/Whole Entertainment System Protection (Single Unit)"
brand: "ifi"
price: "€ 283.57"
currency: EUR
in_stock: true
reviews_count: 5
category: "I Fi"
url: https://www.desertcart.pt/products/448860733-ac-ipurifier-mains-audio-video-noise-eliminator-line-conditioner-filter
store_origin: PT
region: Portugal
---

# Surge protection & auto cutoff 40dB noise reduction Universal 100-240V compatibility AC iPurifier - Mains Audio/Video Noise Eliminator/Line Conditioner/Filter/Isolator/Purifier/Whole Entertainment System Protection (Single Unit)

**Brand:** ifi
**Price:** € 283.57
**Availability:** ✅ In Stock

## Summary

> 🔊 Elevate your audio game—because your sound deserves a power cleanse!

## Quick Answers

- **What is this?** AC iPurifier - Mains Audio/Video Noise Eliminator/Line Conditioner/Filter/Isolator/Purifier/Whole Entertainment System Protection (Single Unit) by ifi
- **How much does it cost?** € 283.57 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/448860733-ac-ipurifier-mains-audio-video-noise-eliminator-line-conditioner-filter)

## Best For

- ifi enthusiasts

## Why This Product

- Trusted ifi brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Guard Your Gear:** Built-in surge protection instantly cuts power during voltage spikes, safeguarding your investment.
- • **Hum-Free Harmony:** Smart earth/ground management eliminates buzz and hum without creating ground loops.
- • **Plug & Play Anywhere:** Works seamlessly with any mains-powered A/V setup, from home theaters to pro studios.
- • **Scalable Sonic Upgrade:** Use multiple units to isolate noisy power sources and unlock next-level sound and video fidelity.
- • **Silence Your Power Lines:** Active Noise Cancellation slashes AC line noise by 40dB for pristine audio clarity.

## Overview

The iFi AC iPurifier is a cutting-edge active noise cancellation device designed to dramatically reduce electromagnetic interference and hum from AC power lines. Compatible with 100-240V systems, it protects sensitive audio/video equipment with surge protection and smart grounding, delivering up to 40dB noise reduction. Ideal for home theaters, recording studios, and professional setups, it transforms your power supply into a clean, quiet source, unlocking clearer sound and sharper video with effortless plug-and-play installation.

## Description

When you listen to music there’s a lot of background noise going on. Some noise cannot be missed but there’s also some that is not immediately obvious until it has gone. It mainly comes from your power supply and interference and feedback from other devices. Bring the AC iPurifier into your set-up and you’ll notice the difference instantly. Music you once thought was clear takes on a new life, filtering out noise you never knew was there and leaving you with pure, cleaner, and undiluted sound. The iFi audio AC iPurifier cleans up the dirty AC mains, detects, and solves annoying mains based electromagnetic interference (EMI), radio frequency interference (RFI), Earth, plus ground issues. An exceptionally user friendly device, just insert into the audio mains, power outlet, or extension block for diagnostics and a 40dB (or 100x) noise reduction. It is a direct upgrade to any audio system. Technologically advanced, it’s an active, not a passive, product so it goes above and beyond and cancels far more noise across the frequency range than other power filters. It is particularly effective at dealing with modern audio systems that have an abundance of generic and varied power supplies, whether it's a switch mode such as the iFi iPower or linear. The AC iPurifier draws from French military engineering and includes, Active Noise Cancellation to cancel all incoming noise. It can handle 100 volts to 240 volts. Combine with the Groundhog+ to correct an issue where a ground is needed. It is a unique solution to a very common problem found in computer audio; NO Ground/Earth which every audio system requires to shield and also 'drain the noise' away. With no Ground/Earth, users report hum, buzz and interference related issues. Simply add the RCA to banana cable directly into the audio chain via the AC iPurifer and enjoy the music.

Review: iFi AC iPurifier Quad 'Firewall' Installation and Evaluation - It was a couple of months ago that I first became aware of the iFi AC iPurifier through the end user reports on several of the computer audio related websites that I frequent. When considering how to best implement and test these devices within my all digital computer based A/V system I decided that it would be convenient to place one AC iPurifier in each of the isolated ground hospital grade duplex outlets that my 4 pieces of digital equipment draw their power from. In order to get an idea of the contribution made by each individual AC iPurifier I staggered their deployment of one in each of the 4 duplex outlets that my PS Audio Extension Link AC distribution hub has which provides AC power to the entire A/V system allowing the use of one AC iPurifier in each duplex outlet for each piece of equipment. The following description describes the order in which I installed the AC iPurifiers along with a brief evaluation of the change that each AC iPurifier brought to the overall audio and video performance within my A/V system: 1) I installed the first of the 4 AC iPurifiers in the outlet which the video monitor with it’s Switch Mode Power Supply (SMPS) uses to draw it’s AC power. I immediately noticed a substantial improvement in picture quality along with an accompanying improvement in audio playback quality as well. 2) Next I installed an AC iPurifier directly into the same duplex outlet that my Mac Mini computer which supplies audio over USB and video over HDMI is plugged into. I have read many times that computers designed for general use like the Mac Mini use very noisy Switch Mode Power Supplies and because of this the best advice is that they should never be used in conjunction with sensitive purpose built A/V equipment. The introduction of the AC Purifier soon offered a very clear and undeniable confirmation of this advice. As with most of you reading this review I have spent many years experimenting with ways to improve both my audio and video playback quality keeping in mind that everything we see and hear from our A/V systems was once AC power coming from the wall. That said, the AC iPurifier which was used directly as a ‘firewall’ in parallel with the Mac Mini at the shared outlet it uses to draw AC power brought a level of improvement that in my estimation is in inverse proportion to what must be the huge amount of RFI and leakage current pollution that this general use computer otherwise distributes back into the collective supply of AC power which is shared by all of the other A/V equipment. I am very reluctant in making extraordinary claims, but I in this case I must admit that the improvement here was definitely on an order of magnitude allowing both the audio and video equipment to shine and for the first time finally be able to operate ever so much closer to their original intended design capability once the AC power that the entire A/V system uses was cleaned up by the AC iPurifier. 3) The third AC iPurifier deployment was to the outlet that the Wadia 151 Power DAC with it’s SMPS uses. This device processes PCM in S/PDIF format into PWM which is subsequently L/C filtered to produce a speaker level signal. The perceived improvement here was very much on the same level as was noticed with the treatment of the video monitor where there again was an appreciable improvement in overall sound quality accompanied by a noticeable improvement in picture quality as well as the general supply of AC power was once again filtered from the RFI and leakage current that the Power DAC with it’s SMPS was creating which in turn benefits all of the equipment using the now less polluted supply of AC power. 4) The SOtM DDC which converts galvanically isolated PCM over USB to S/PDIF format over Fused Silica Glass Toslink for processing by the Power DAC is the only piece of equipment in the system that uses a Linear Power Supply (LPS). I mention this because the deployment of the AC iPurifier to the duplex outlet which this LPS draws AC power from was the only instance in this evaluation where there seemed to be no discernible change in the performance of this device or any other equipment in the A/V system. My opinion about this is that this LPS is probably not creating the same large amounts of RFI and leakage current pollution as the Switch Mode Power Supplies of the other 3 pieces of equipment are and subsequently there is simply little or no noticeable improvement for the AC iPurifier to make in this deployment. Conclusion: Three of the 4 iFi AC iPurifiers which I installed over a week’s time have collectively proven to provide the greatest and most transformational improvement thus far to both the audio and video quality of my all digital A/V system which I have been working diligently to improve for many years. I know these truly spectacular improvements as the single most impressive set of enhancements I have ever seen or heard in the performance of my A/V system and the thanks go to the AC iPurifier’s adept elimination of the copious amounts of RFI and leakage current pollutions that were once being spewed back into the supply of AC power severely compromising the performance of the equipment. The AC iPurifiers have now enabled that same equipment to function strikingly closer to how it was originally designed to perform and in this case resulting in a true ‘component level’ upgrade.
Review: Honestly, just give it a try. - I never write reviews. Didn't really know what to expect with the iFi but it didn't seem too risky of a tweak to try. I was very pleasantly surprised. Kind of shocked actually. The improvement was not subtle (what i expected) and very noticeable. I don't pretend to know how it works, but whatever voodoo it is, in my system there is a noticeable difference. My turntable needs a new stylus so couldn't use it as a reference. Digital it was (not my first choice). Tube integrated Amp, sensitive book shelf speakers, Cheap transport (Oppo) to anti-jitter thingy into a tube (6922 x 2) DAC. Very modest system. I live in a older 30+ year old 3 story walk-up apartment building in a popular area of Vancouver.. think Kitslano, Berkeley, Cabbagetown.. etc. So lots of people cloistered togther, streaming, wi-fi etc all kinds of stuff, wifi everywhere... Not much power conditioning, all sources running through a cheap Monster HTS 1000. Overall, I was pretty happy with the sound outta my system. Room setup could always be better but not bad. This is all based on initial impressions, about 6 hours. I used the "Police" 4 disc set, Grateful Dead's "Terrapin Station", Miles Davis "Kind of Blue" and Pink Floyd's "The Wall", Government's Mule's version of "When Dove's Cry". Surprisingly the bass was a lot tighter, could really hear Stewart Copelands bass kicks, and his hi-hats were a lot more noticeable... voices weren't much different .. maybe less decay and shimmer on cymbals but could be my imagination.. clearer separation of instruments.. guess this is what they mean by "lower noise floor" and "blacker background"... Anyway, not going to go into it cause i know everyone's systems are different, and YMMV ,, but honestly, give it a trial. For the price, and return policy, definitely a legit tweak worth giving a shot. BTW.. I have my source (via the Monster power bar) off one outlet .. and plug my amp straight into the wall out of another outlet. Clearly noticed a difference right way with iFi in outlet with my sources/power bar (so power bar on one plug + iFi on other), but the most noticeable improvement was plugging the iFi in the outlet with my amp (.. in "parallel" with amp)... no detriment to attack/transients, dynamics etc .. Hope this helps, excuse my internet gleaned audiospeak.. good luck.

## Features

- ✅ ACTIVE NOISE CANCELLATION - The AC iPurifier creates an incredibly quiet noise floor from your AC power lines and was designed to be used in ANY mains powered audio / video system while it reduces noise without audible side effects and does not hinder dynamics.
- ✅ REDUCES HUM - It only actively provides an earth/ground if your system needs one and will not create a ground loop reduces hum or buzz issues on A/V systems with no ground or earth
- ✅ WORKS IN ANY SETUP - Where extension blocks, power strips, extension cords, surge protectors, or outlet extenders are used, the AC iPurifier can be used to isolate certain types of power supplies for the maximum noise reduction and the design is such that it is even more effective if several are used to ‘contain’ the same type of noisy sources so try in different locations to discover which has offers the most improved sonics
- ✅ SURGE PROTECTION - It protects from voltage surges so if it detects a power surge from the power receptacle it will automatically cut off, protecting your valuable and highly sensitive equipment in parallel from harm.
- ✅ FOR ANY AUDIO SYSTEM - Perfect for use in systems at home, office or professional settings and is truly a remarkable product in systems such as home theaters, listening rooms, turntable setups, recording studios, or anywhere you would want to benefit from an easy way to experience better sound

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | iFi |
| Model Number | 306019 |
| Color | White |
| Product Dimensions | 0.99 x 0.99 x 0.99 cm; 272.16 g |
| Noise Level | 40 dB |
| Compatible Models | MP3 Player |
| Item Weight | 272 g |

## Product Details

- **Compatible devices:** MP3 Player
- **Specific uses for product:** Home, Office, Recording Studio
- **Connector type:** RCA
- **Colour:** White
- **Item dimensions L x W x H:** 10 x 10 x 10 millimeters

## Images

![AC iPurifier - Mains Audio/Video Noise Eliminator/Line Conditioner/Filter/Isolator/Purifier/Whole Entertainment System Protection (Single Unit) - Image 1](https://m.media-amazon.com/images/I/61Rp1SiFheL.jpg)

## Questions & Answers

**Q: Hi, will the ipurifier negatively effect ethernet over the powerline? i use devolo dlan to provide ethernet via powerline. thanks.**
A: It reduces all high MHz noise from the line, so yes it will probably reduce the signal

**Q: Does this filter use MOVs?**
A: Just check out the ifi site as I did, it doesn’t say it has MOVs but they show the circuit board and it appears to use them in order to stop over voltage situations. This unit is much more sophisticated than a mere passive filter. It really does work and I can easily hear the effect in my high resolution audio systems. Hope that helped.

**Q: Will this do anything if it is plugged into a line conditioner, like a Panamax or Furman?**
A: Absolutely. I have one plugged into my PS Audio P10 AC regenerator and it absolutely makes a discernible difference for the better. It is an active noise filter capable of attenuating noise in its active bandwidth by up to 40dB.

**Q: Hi. i bought this in 7/2. it is not working. i opened a support ticket with ifi (#687149). how can i exchange it for other one?**
A: You should contact customer service. This is meant for asking customers questions

## Customer Reviews

### ⭐⭐⭐⭐⭐ iFi AC iPurifier Quad 'Firewall' Installation and Evaluation
*by S***. on 1 July 2018*

It was a couple of months ago that I first became aware of the iFi AC iPurifier through the end user reports on several of the computer audio related websites that I frequent. When considering how to best implement and test these devices within my all digital computer based A/V system I decided that it would be convenient to place one AC iPurifier in each of the isolated ground hospital grade duplex outlets that my 4 pieces of digital equipment draw their power from. In order to get an idea of the contribution made by each individual AC iPurifier I staggered their deployment of one in each of the 4 duplex outlets that my PS Audio Extension Link AC distribution hub has which provides AC power to the entire A/V system allowing the use of one AC iPurifier in each duplex outlet for each piece of equipment. The following description describes the order in which I installed the AC iPurifiers along with a brief evaluation of the change that each AC iPurifier brought to the overall audio and video performance within my A/V system: 1) I installed the first of the 4 AC iPurifiers in the outlet which the video monitor with it’s Switch Mode Power Supply (SMPS) uses to draw it’s AC power. I immediately noticed a substantial improvement in picture quality along with an accompanying improvement in audio playback quality as well. 2) Next I installed an AC iPurifier directly into the same duplex outlet that my Mac Mini computer which supplies audio over USB and video over HDMI is plugged into. I have read many times that computers designed for general use like the Mac Mini use very noisy Switch Mode Power Supplies and because of this the best advice is that they should never be used in conjunction with sensitive purpose built A/V equipment. The introduction of the AC Purifier soon offered a very clear and undeniable confirmation of this advice. As with most of you reading this review I have spent many years experimenting with ways to improve both my audio and video playback quality keeping in mind that everything we see and hear from our A/V systems was once AC power coming from the wall. That said, the AC iPurifier which was used directly as a ‘firewall’ in parallel with the Mac Mini at the shared outlet it uses to draw AC power brought a level of improvement that in my estimation is in inverse proportion to what must be the huge amount of RFI and leakage current pollution that this general use computer otherwise distributes back into the collective supply of AC power which is shared by all of the other A/V equipment. I am very reluctant in making extraordinary claims, but I in this case I must admit that the improvement here was definitely on an order of magnitude allowing both the audio and video equipment to shine and for the first time finally be able to operate ever so much closer to their original intended design capability once the AC power that the entire A/V system uses was cleaned up by the AC iPurifier. 3) The third AC iPurifier deployment was to the outlet that the Wadia 151 Power DAC with it’s SMPS uses. This device processes PCM in S/PDIF format into PWM which is subsequently L/C filtered to produce a speaker level signal. The perceived improvement here was very much on the same level as was noticed with the treatment of the video monitor where there again was an appreciable improvement in overall sound quality accompanied by a noticeable improvement in picture quality as well as the general supply of AC power was once again filtered from the RFI and leakage current that the Power DAC with it’s SMPS was creating which in turn benefits all of the equipment using the now less polluted supply of AC power. 4) The SOtM DDC which converts galvanically isolated PCM over USB to S/PDIF format over Fused Silica Glass Toslink for processing by the Power DAC is the only piece of equipment in the system that uses a Linear Power Supply (LPS). I mention this because the deployment of the AC iPurifier to the duplex outlet which this LPS draws AC power from was the only instance in this evaluation where there seemed to be no discernible change in the performance of this device or any other equipment in the A/V system. My opinion about this is that this LPS is probably not creating the same large amounts of RFI and leakage current pollution as the Switch Mode Power Supplies of the other 3 pieces of equipment are and subsequently there is simply little or no noticeable improvement for the AC iPurifier to make in this deployment. Conclusion: Three of the 4 iFi AC iPurifiers which I installed over a week’s time have collectively proven to provide the greatest and most transformational improvement thus far to both the audio and video quality of my all digital A/V system which I have been working diligently to improve for many years. I know these truly spectacular improvements as the single most impressive set of enhancements I have ever seen or heard in the performance of my A/V system and the thanks go to the AC iPurifier’s adept elimination of the copious amounts of RFI and leakage current pollutions that were once being spewed back into the supply of AC power severely compromising the performance of the equipment. The AC iPurifiers have now enabled that same equipment to function strikingly closer to how it was originally designed to perform and in this case resulting in a true ‘component level’ upgrade.

### ⭐⭐⭐⭐⭐ Honestly, just give it a try.
*by S***O on 25 June 2020*

I never write reviews. Didn't really know what to expect with the iFi but it didn't seem too risky of a tweak to try. I was very pleasantly surprised. Kind of shocked actually. The improvement was not subtle (what i expected) and very noticeable. I don't pretend to know how it works, but whatever voodoo it is, in my system there is a noticeable difference. My turntable needs a new stylus so couldn't use it as a reference. Digital it was (not my first choice). Tube integrated Amp, sensitive book shelf speakers, Cheap transport (Oppo) to anti-jitter thingy into a tube (6922 x 2) DAC. Very modest system. I live in a older 30+ year old 3 story walk-up apartment building in a popular area of Vancouver.. think Kitslano, Berkeley, Cabbagetown.. etc. So lots of people cloistered togther, streaming, wi-fi etc all kinds of stuff, wifi everywhere... Not much power conditioning, all sources running through a cheap Monster HTS 1000. Overall, I was pretty happy with the sound outta my system. Room setup could always be better but not bad. This is all based on initial impressions, about 6 hours. I used the "Police" 4 disc set, Grateful Dead's "Terrapin Station", Miles Davis "Kind of Blue" and Pink Floyd's "The Wall", Government's Mule's version of "When Dove's Cry". Surprisingly the bass was a lot tighter, could really hear Stewart Copelands bass kicks, and his hi-hats were a lot more noticeable... voices weren't much different .. maybe less decay and shimmer on cymbals but could be my imagination.. clearer separation of instruments.. guess this is what they mean by "lower noise floor" and "blacker background"... Anyway, not going to go into it cause i know everyone's systems are different, and YMMV ,, but honestly, give it a trial. For the price, and return policy, definitely a legit tweak worth giving a shot. BTW.. I have my source (via the Monster power bar) off one outlet .. and plug my amp straight into the wall out of another outlet. Clearly noticed a difference right way with iFi in outlet with my sources/power bar (so power bar on one plug + iFi on other), but the most noticeable improvement was plugging the iFi in the outlet with my amp (.. in "parallel" with amp)... no detriment to attack/transients, dynamics etc .. Hope this helps, excuse my internet gleaned audiospeak.. good luck.

### ⭐⭐⭐⭐⭐ Magia pura!
*by I***Z on 30 January 2024*

Funciona! Tenía un ruido en mi amplificador NAD, que nada más no podía quitarlo ya que no cuento con línea de corriente exclusiva para mí equipo en una casa normal en donde aunque se supone que hay línea y breaker por separado para otros electrodomésticos, se metía insistentemente un zumbido, y lo redujo considerablemente con tan solo conectarlo a la 1er salida de dónde derivó al resto de los acondicionadores y de ahí aparatos. Sería bueno que contará con un instructivo aunque es sencillo veo que tiene una entrada para conectar a tierra, creo que es un plig de 3.5mm como de audífono pequeño ya investigaré Y actualizaré apenas hoy me llegó e hizo su magia ya es noche y no puedo hacer pruebas de audio, mañana que estoy solo probaré. Al menos yo digo que para escuchar musica primero debes tener silencio, las tierras son muy importantes y este acondicionador ayuda incluso si tienes otros acondicionadores. En mi caso tengo dos un Furman y un Magenta de margules audio, todo suma, también compre unos soportes de balines de acero para reducir las vibraciónes de los transformadores internos y externos de cada aparato, también note más limpieza del sonido, seguiremos viendo que más contribuye a escuchar lo más puro posible, un vicio interminable. En Julio de 2026, voy por el segundo ifi silent power, después de haberlo buscado nuevamente hubo una escasez después de investigar un poco con un distribuidor de hifi en México me dijo que ya estaba descontinuado y en espera del nuevo modelo, esperando a que salga con nuevo precio también pues me imagino alguien hizo limpia y salió este rezagado, yehiiiiii, lo pesqué.!..

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-11-09*