AC iPurifier

AC iPurifier

Cleansing sound.

iFi audio AC iPurifier
Tasting pure, clean water only leaves you thirsty for more. The AC iPurifier has the same effect on your ears.

Plug in. Play and hear the difference.

You won’t believe your ears.

Undiluted clarity.

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 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, undiluted sound.

iFi audio AC iPurifier

Hydrate your hearing.

You deserve the best in home audio, and the AC iPurifier does just that.

Drink in crystal clear music once more.

The tech spec.

The AC iPurifier draws from French military engineering and includes:

  • Active Noise Cancellation To cancel all incoming mains noise

With EU and USA 3-pin versions. It can handle 100 volts to 240 volts. The UK version comes with adapter to EU version.

And with a chassis made from polyurethane plastic, the AC iPurifier is not only powerful, it’s tough too.

Cleans up noisy mains supplies.

It ACTIVELY cancels noise. The AC iPurifier cancels far more noise across the frequency range than other passive products.

Active filtration is MUCH better at -40dB and effective across the frequency range as this graph shows.

A passive purifier filters only in the very top-end of the frequency range.

By generating a signal identical to the noise signal but in the exact opposite phase, our Active Noise Cancellation® (ANC) actively cancels all incoming noise!

Modern audio systems have a plethora of mains plugs. Each of these add unwanted noise issues and pollute the local mains supply.

You can insert into the AC mains wall outlet that supplies the audio system OR insert into the mains extension block for the audio system.

The design of the AC iPurifier is such that it is even more effective if several are used to ‘contain’ the same type of noisy sources.

Try in different locations to discover which has offers the most improved sonics.

Wireless Purification System.

This reduces noise without audible side effects. It does not hinder dynamics.

Intelligent Ground Connection.

It only actively provides an earth/ground if your system needs one. It will not create a ground loop.

Smart Polarity and Earth Connection.

Insert into your system to check polarity.

Red - incorrect. Green - good to go.

Saves your system!

If it detects a power surge it will automatically cut off, protecting your valuable and highly sensitive equipment from harm.


Noise reduction: > 40dB (> 100x)
Surge Protection: max. 30,000A @ 1,000V/10uS
Operating Voltage: 90V – 265V
Size/Weight: (USA): ø 40mm x 105mm (L)
108 (g) / 0.24 (lbs)
                    (EU): ø 40mm x 115mm (L)
126 (g) / 0.28 (lbs)
Warranty period: 12months


I found this to not be a solution, but an enhancement

The difference was indistinguishable when directly connected to dirty mains. No configuration I tried, nor sockets seemed to have any effect. Treble has been horrifically harsh in my flat, I even forged a hookup to utilize the ground point. Holding back, I did another examination but this device seemed to have no effect. I found exorbitantly sibilant tracks were again unaffected, with identical tonality.

Where I was surprised was when I used the iPurifier with a mains conditioner, there is a clear difference in fidelity. Robert Plant has some wonderfully produced, and so I listened to Trampled Rose from the album Raising Sand, one of my favourites. I noticed a quiver in Alison’s voice at around 3:50 became more distinct. Paying attention to the drums I then noticed they were flat when I removed the IPurifier. Wow! I am mindblown.

(Click name to read original review)
More reviews…
More reviews…

It works! Reduces noise from AC line for less than other conditioners

Great for making your music sound clearer and come from a more silent background. You have to use the device for a while, and then remove it to appreciate what it does. This is not a fix all, though. Many power supplies inside gear generate noise and this can only help reduce that pollution from reaching another component over a shared AC circuit.

All your electronics need low noise power supplies or modified to have them before you can realize your system’s full potential. Even unplugging unused components can help reduce noise they put on the AC power.

(Click name to read original review)

Overview of iFi Audio accessories and filters – does filtering matter?

This article was born in my head a long time ago, mainly due to repeated questions from time to time, whether I had contact with filtering devices like iSilencer, Jitterbug etc. But since I run my humble blog, I’ve probably got used to most people to a few maxims, which I am guided in total not only in the field of audio equipment, but generally in life…

(Click name to read original review)

Great at reducing noise

Really crazy that they work as well as they do, reduced noise all over my system.

(Click name to read original review)

Cleans up the sound with a difference you can hear

I use a line conditioner, and thought my power was clean, but surprisingly, you plug in the IFI and you can hear the sounds become more clear and focused. Go back and uplug and you can hear the sound not be as focused and clear. A wise investment if you are sitting on the fence. I’m happy, now I just keep it plugged in all the time!

(Click name to read original review)

Feels like I purchased a new AV system!!!

This by far one of the best audio product I have ever purchased. I honestly didn’t believe EMI could cause so much harm to the audio quality.

For me, It improves the overall sound, including: imaging, instructions separation, eliminated or terminated harshness, sorround sound has more air, and also, I now get to enjoy music at lower volume. I stream Tidal, and it sound so smooth now that I end up grabbing three of this.

I am a fan now. Thank you ifi.

(Click name to read original review)