---
product_id: 631755596
title: "WAudio AC Power Filter Power Conditioner - AC Power Purifier with Surge Protector"
brand: "waudio"
price: "€ 493.35"
currency: EUR
in_stock: true
reviews_count: 5
category: "W Audio"
url: https://www.desertcart.fi/products/631755596-waudio-ac-power-filter-power-conditioner-ac-power-purifier-surge
store_origin: FI
region: Finland
---

# 3000V max spike voltage 6 hospital-grade filtered outlets 15A overload auto-shutdown WAudio AC Power Filter Power Conditioner - AC Power Purifier with Surge Protector

**Brand:** waudio
**Price:** € 493.35
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up your sound & vision with clean, protected energy!

## Quick Answers

- **What is this?** WAudio AC Power Filter Power Conditioner - AC Power Purifier with Surge Protector by waudio
- **How much does it cost?** € 493.35 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/631755596-waudio-ac-power-filter-power-conditioner-ac-power-purifier-surge)

## Best For

- waudio enthusiasts

## Why This Product

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

## Key Features

- • **Heavy-Duty Build:** Robust aluminum casing with hospital-grade outlets ensures durability and premium performance.
- • **Phase-Perfect Power:** Automatically detects correct AC phase & ground for flawless connectivity.
- • **Surge Shield Supreme:** Defends your gear with 3000V spike & 1000A surge protection—no more power drama.
- • **Smart Overload Defense:** Auto power-off at 15A overload with easy reset—protects your expensive equipment effortlessly.
- • **Noise-Free Audio Visuals:** Filters out EMI noise >-10dB for crystal-clear sound and sharper images.

## Overview

The WAudio W-3900 AC Power Filter is a heavy-duty power conditioner designed to deliver clean, filtered electricity by eliminating electromagnetic interference and voltage spikes. Featuring automatic phase detection, hospital-grade filtered outlets, and robust surge protection, it enhances audio-video clarity while safeguarding your equipment from overloads and power anomalies. Ideal for audiophiles and professionals seeking superior sound and image quality with reliable power safety.

## Description

Clean electricity to improve the performance of your audio-video system. The electricity network in our homes or workplaces is exposed to different interferences for instance electromagnetic interference (EMI) generated by appliances connected to the same network (refrigerators, air conditioners, computers etc.). These interferences are not only produced inside your house or office but by all appliances in your building or even outside it and can differ on the time of day or week when the traffic on the electrical network changes. All these interferences which we call noises can get into your AC power and interfere with your system. This “dirty” electricity can have a negative effect on performance of your audio-video system. WAudio power noise filter is a great way to limit the negative noises from your electricity and to isolate your system from the contaminated power and has a feature to indicate the correct power phase.Thanks to the W-3900 you will be able to enjoy a better quality of your audio and video equipment.The contaminated electricity has also a negative impact on internal circuits and power supplies of your equipment and because the W-3900 works as a buffer between the wall socket and your gear it will help to increase the longevity of connected components.Removable IEC type power cord gives an option to upgrade your system with a premium audiophile power cable in any time.Specification:Max Spike Volt: 3000VMax Surge Current (8x20s): 1000AMas Clamping Volt (8x20s): 470VNoise Filter: >-10dB (2~100MHz)AC Power Rating: 110~125V 50/60HzKit Contents:W-3900 power filter x 1 power cord x 1

Review: Solid unit, which solved the humming issue !
Review: Se nota una diferencia notable en la calidad del audio, la compré más como protección que como acondicionador de sonido, pero logró darle más claridad a las frecuencias altas, ampliar el escenario sonoro y la imagen estéreo. Las frecuencias bajas suenan más definidas. Lo uso con Cambridge Audio y bocinas Focal.

## Features

- ❤️ PHASE DETECT - Phase and the ground wire connection of AC source can be detected automatically.
- ❤️ OVERLOAD PROTECTION - The sockets will be powered off when total current over 15A, press RESET button to restore power supply.
- ❤️ VOLTAGE PROTECTION - Its circuit detects dangerous voltage irregularities and provides the highest level of surge & spike protection.
- ❤️ HEAVY DUTY DESIGN - Metal casin with thickness aluminum plates, come with 6pcs hospital grade filtered outlets and 4pcs industrial grade direct outlets.
- ❤️ POWER CLEAN - It ensures that all devices connected to W-3900 receive clean & filtered power, which reduces noise and ensures better sound and picture quality from amplifier, DJ equipment, home recording, projector, TV, computer, and other electronics.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00XWL2VVK |
| Item model number | W-3900 |
| Manufacturer | Mistral Audio |
| Product Dimensions | 45 x 14 x 9 cm; 2.6 kg |

## Product Details

- **Brand:** WAudio
- **Colour:** Silver
- **Connector type:** Barrel Connector
- **Item weight:** 2.6 Kilograms
- **Material:** Aluminum

## Images

![WAudio AC Power Filter Power Conditioner - AC Power Purifier with Surge Protector - Image 1](https://m.media-amazon.com/images/I/61A1hPHyxoL.jpg)
![WAudio AC Power Filter Power Conditioner - AC Power Purifier with Surge Protector - Image 2](https://m.media-amazon.com/images/I/61EMto-PbbL.jpg)
![WAudio AC Power Filter Power Conditioner - AC Power Purifier with Surge Protector - Image 3](https://m.media-amazon.com/images/I/61LbWk+2-AL.jpg)
![WAudio AC Power Filter Power Conditioner - AC Power Purifier with Surge Protector - Image 4](https://m.media-amazon.com/images/I/61OX03ueYxL.jpg)
![WAudio AC Power Filter Power Conditioner - AC Power Purifier with Surge Protector - Image 5](https://m.media-amazon.com/images/I/61if+vc916L.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: Where is the waudio ac power purifier with surge protector made?**
A: China

**Q: Does this protect against brownouts / under current as well, or just surge and spikes?**
A: No. You'd need a UPS for that.

**Q: Will this help clean harmonic distortion put into the line from a generator?**
A: This filter is very simple, it will clean some types of RF noise and that kind of thing, but it sounds like you are looking for something to re-shape the 60 Hz sine wave. This will not do that.

**Q: since this is also a surge protector, what is the joules rating?**
A: 1875 joules rating.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***S on 3 November 2025*

Solid unit, which solved the humming issue !

### ⭐⭐⭐⭐⭐ Review
*by A***L on 27 January 2025*

Se nota una diferencia notable en la calidad del audio, la compré más como protección que como acondicionador de sonido, pero logró darle más claridad a las frecuencias altas, ampliar el escenario sonoro y la imagen estéreo. Las frecuencias bajas suenan más definidas. Lo uso con Cambridge Audio y bocinas Focal.

### ⭐⭐⭐⭐⭐ Review
*by L***C on 26 February 2021*

I’m going to combine one review for two items, because they are related, and so I don’t have to write two separate reviews: 1) iFi Power Supply 2) WAudio W3900 Power Conditioner... After the usual audiophile tweaks to my mid-low system (Teac CD transport, SMSL DAC, Schiit Freya+, Parasound Power Amp, Focal Chorus), I decided to try some some power supply tweaks—knowing that it could improve sound, or could be snake oil. The iFi power supply arrived first, so before installing this, I played and listened to one of my favorite test tracks, then plugged in the Power Supply to my DAC... Lo and behold, the difference was significant, and I could easily hear that the low end became much more meaty and solid. I was surprised what an improvement there was! I couldn’t tell any high end difference, which was fine, as I feel my system was a bit top heavy (bright) anyways, so this change went in the correct direction. A few days later, the W3900 came in. I listened again to my test track again, then unplugged my entire system from a cheap surge protector, and plugged everything into the conditioner. Surprise: Again, the difference was not subtle. This time, the conditioner effected the sound in a different way. It focused all the sound instrument more coherently, causing a major improvement in imaging. It seemed to do this by clearing out what seemed like some low level music details that was scatttered/floating over the entire sound stage... leaving the music very clean, and focused positioning of the musical instruments within the stage... So both experiments turned out great! Then I decided to test out what a YouTube reviewer said about power conditioners being inherent “current limiters”, and hence will hurt power amplifier performance. So I selectively unplugged my power amp from the conditioner’s “filtered” section, and plugged it into the “unfiltered” section... BOOM, the music went less focused again! So, done, all my components will go through the conditioner’s filtered outlets. I’m a happy camper. My conclusion is that power supply tweaks are NOT snake oil with the following caveats: 1) That your speakers or room acoustics are not max’ed out—and still have the extra capacity to reveal any improvement tweaks. For instance, if your room acoustics are so bad that even if you improve real sound quality, the room has no capacity to reveal the improvement... then no matter how real the sound improvement you achieve, it will not show up in a room with bad acoustics. (In my experience, the two most important and significant sound tweaks are speak placement, and room acoustic treatments. After you get these two items settled, then go on to the smaller tweaks like cables, power supply, etc. 2) The second circumstance when a power supply tweak won’t show is if your system is super high-end and already optimized to the max. In this case, a small change in power supply will have no noticeable effect, and may even degrade the sound somewhat.... Other than these two conditions, I think you will have great results and fun playing with these power supply tweaks!

## Frequently Bought Together

- AC Power Filter Power Conditioner - WAudio AC Power Purifier with Surge Protector
- WAudio Hi-End HiFi Audio AC Power Cable Power Cord US Plug - 10FT (3M)
- WAudio 3.3FT AC Power Cable 10AWG HiFi Audiophile Power Cord with US Plug IEC Connector

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-10*