WAudio AC Power Filter Power Conditioner - AC Power Purifier with Surge Protector

Solid unit, which solved the humming issue !

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.

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!

Funciona muy bien, mejora el sonido de mis dispositivos.

J’ai essayé ça sans avoir d’attentes sur mon Naim Mu-so 2 ans et ça a beaucoup amélioré le son. Une plus grande séparation, plus de basse et de clarté. Je le recommande pour le prix. Aussi bon qu’un modèle beaucoup plus dispendieux.