AudioQuest - Niagara 1200 Power Conditioner with NRG-Y3 Power Cable (15A, 2m)

I had big noise sounding issues with my Yamaha hs8 monitors and has8s sub. When not playing music the noise would emanate through the speakers and when playing music you could hear it . Not so much the sub but I connected all three and my RME dac into this unit and it complety eliminated all sounding noise coming from my speakers. I couldn’t believe it. I had been looking for a resolution for years and this was it. I disconnected everything again and back into the wall and the loud noise issues came back immediately. Connected everything back to the Niagara and zip nothing. It’s outstanding . Aside from that the sound became more powerful to put it simply . I can turn up the volume on my dac to full volume when silent and the noise does not move. You have to put your ear next to the tweeter or dome to hear the slightest hiss. Move back and there’s nothing. Thoroughly impressed and it’s staying with me. I have read tons of snake oil about this and on you tube and they are lies with flawed tests and reviews. If you have noise issues then buy it. The worst that can happen is you return it. When I first plugged it in, it took about 5 -10 minutes to completely drain all noise. That was a really weird phenomena if you would which they call a break in and that it needs to do that. It hasn’t come back since it’s first plug in.

Beautiful clean power to my components let's them play full potential

My 2 channel listening system is Lumin U2 mini into Anthem STR integrated amp, and out through Paradigm Persona 3F speakers. I performed A/B/C testing with amp plugged into the Niagara, then direct to wall, and lastly an old Monster Cable surge box. For me, across 10 different test tracks, the vocals were more articulate and resonant, the soundstage wider, instrumentation more clearly defined, and low end less muddied WITHOUT the Niagara.To be clear, I live in a single family suburban home so perhaps there isn’t much electrical noise to “clean”, but I wasn’t expecting what it did to the quality of the listening.Sending it back.

Great product! Givev it time to break-in.

It lowered the noise floor in my music considerably and gave a clean sound at all times during the day. I don't have to wait for the night to have a good listening experience (AC power is usually cleanest during the late hours when most businesses are closed).The improvement was noticeable on first use. Subwoofer Bass was punchier and the music had more presence for the same volume. I had less ear fatigue when listening with headphones and the 60 Hz hum on my Tube Amp is almost imperceptible when no music is playing (basically it doesn't exist anymore).This product greatly exceeded my expectations. It's a shame I didn't look into power-conditioning sooner.

I can't hear any difference with my devices plugged into this or into the wall. For $1000 bucks and the company's claims, I expected a noticable difference in the sound v. wall socket. I have a high end system and can think of better places to spend $1000.

This item did not remove or reduce buzzing and hissing sound from my speakers. Glad Amazon has a 30 day return/Full refund policy, sent this item back with the quickness.

We live in a house built in 1935. While we have grounded our outlets, the wiring is still quite dated. Unit seems to do its job. No flashing lights, bells or whistles. is a solidly built unit. No heat problems. No noise.

Moved to a new to me house so still getting used to the room and have done only a little experimentation with speaker placement. My venerable APC S15 died in the move, APC tech support was great but they could not revive the 17 year old machine. So chose the Niagra 1200 which the book says will improve slowly over the first 2 weeks. At day 10, yes the Audioquest is better than the Dollarama power strip I used to give life sustaining music once I had system in place. Is the Niagra 1200 better than the S15, I will never know for sure. Based on what I hear the Niagra has improved with age and works, good dynamics and clear high end without being fatiguing. The blue pilot light is way too bright, seems like space lasers, pew pew pew.