iFiiPower2 - Low Noise DC Power Supply - Upgrade Your Audio/Video/Electronics [9V / 2A]

You would perhaps not think that a power supply would make a whole lot of difference to the sound of components, but it really does. I have two of these for a streamer and a DAC. They really do eliminate any hint of hiss or hum. I can crank my amp volume up to maximum and hear silence, like there's no device plugged in at all. When playing music, everything just sounds clearer and more defined. Seriously, a night and day difference over the cheap wall warts that are supplied with most devices.

I was quite sceptical of this device but decided to buy one anyway. I am very pleased that I did. Substituting this for the supplied "wall wart" which came with my Fosi ZD3 DAC gave appreciable gains in soundstaging and stereo imaging.There are enough tips supplied to ensure it mates with almost any device, and also a separately bagged tip negative connector should you need one.Thoroughly recommended.

Great build quality, and lots of adapters in box. Did a back to back comparison, more transparency in sound.

Bought this for a lacklustre sounding WIIM MINI. Noticeable for me, had been the lively sounds stage. The highs sounded much more refined to my ears, the lows much more punchier cleaner and distinct. Happier with the sound improvement.This is the second ifi power

As I write this review I'm only half an hour into using the power supply and it's made a big difference. I've built a hifi system form older high quality component. Refurbished and improved them to make a very nice system. Quad 66 preamp, Quad 309 amplifier, Mission 773 speakers fed by a Wiim Pro plus and a Rega record deck. The Wiim always sounded bad in comparison to the vinyl.I've always bought good speaker cables so realised small things can make a big difference but have always been a bit sceptical about cables and accessories that claim to improve the sound especially when they involve a reasonable investment. However, purchasing high quality (expensive) cables to connect the components has made a big difference. So I thought it was worth a go at improving the Wiim with a power supply. I had tried it in many USB supplies. They do sound different but none sounded good.The difference the iPower supply has made to the Wiim Pro Plus is remarkable. Music is tight and controlled with a nice rounded bass. I'd thoroughly recommend it on high end components before you decide to try a more expensive streamer.

Low noise quality PSU for low powered audio devices.

It does make an impact. I am using it to power the internet router. Picture seems better (darker and smoother background) and the audio has improved, too.

I have several pedals that dont like cheap switch mode power supplies where the switching noise comes through with the signal. Although this power supply may seem expensive, for how it performs, it's worth every penny! It is as noise free (electrical noise) as a high quality low noise linear power supply. The lead is also far better quality than the usua onesl. I tried powering ten various pedals simultaneously and it worked flawlessly. If you want noise free effects, thoroughly reccomend getting one.