Power line noise: it’s everywhere
It comes from light dimmers, computers, cell phones, TV’s, even stereo and video equipment in your home as well as those of your neighbors.
Your equipment doesn’t want these power line noises because they can cause a hard and bright sound as well as muddy up the colors of video.
To battle them, we place filters between the equipment and the AC line. While these help reduce noise feeding into the equipment, they do not eliminate it.
Introducing the PS Power Noise Harvester™, the world’s first true parallel power line noise converter that actually eliminates power line noise – instead of shuffling it off somewhere else.
What isn’t talked about
When it comes to power line filters there are two types: series and parallel. The vast majority of power conditioners are series devices meaning they are placed between the AC wall outlet and your equipment. They can be effective in reducing noise but they are one more obstruction in the path of power getting to your equipment.
A parallel filter is placed across the hot and neutral of your AC power and does not obstruct the flow of power. Unfortunately these filters are typically inaffective at reducing noise. What little they do is accomplished by shifting line noise from one place to another.
Noise that comes in the hot side of the line may be sent over to the neutral or ground side. It is not removed or reduced.
All that has changed with the Noise Harvester which does not obstruct the path of the power yet permanently removes line noise from your home.
Energy can neither be created nor destroyed.
Unless we choose to ignore it, we only have two choices: rerouting it or converting it to another form of energy. Rerouting the noise is not a good option if we want to remove it forever.
We want to eliminate line noise, not just hide it somewhere where it can still cause trouble.
Since we cannot destroy noise all we can do is convert the unwanted noise to another form of energy: heat, light, or movement.
PS Audio’s Noise Harvester™ does eliminate a measurable amount of power line noise from your home. But we don’t do it by defying the laws of physics: we do it by taking advantage of them.
The Noise Harvester™ is a plugin module that can be placed on any AC receptacle. Once connected, the Noise Harvester begins to harvest and redirect the AC line noise into a storage tank and then converts it to light.
Plug the Noise Harvester in and watch it go to work. Each blink of the Harvester LED is power line noise gone forever. It’s been converted to light.
But is it measurable?
You bet! You can count on PS Audio to provide real power solutions that are both measurable and audible.
If we want to measure the results of the Harvester™ we first need to make sure there’s a steady source of line noise to view on the ‘scope.
This scope photo shows what dimmer noise actually looks like if you were to ‘freeze’ it. The ‘noise event’ is being shown both in time and level on the ‘scope. See how jagged and nasty looking it is?
What you want is less of this nasty waveform, or even better, just a straight horizontal line with nothing vertical at all. The loudness of the nasty buzzing noise is represented here by the vertical information.
What happens to this noise when the Harvester is added? It reduces significantly by converting this unwanted energy into light and thus removing it from the AC line.
While it’s doing this, the Harvester is blinking like crazy!
When more is better
So, if one Harvester is reducing line noise, what happens when you add multiple Harvesters? Improved noise reduction.
Harvesters work in parallel, each removing 8 to 10 watts of line noise each day. The more you have connected, the more wattage converted and the lower the noise on your power line.
In our sound room we have a small extension strip with 5 outlets. We’ve plugged in five Harvesters, plugged the strip into the wall, and the background noise of the system has gone down dramatically.
So not only is the effect addictive, it’s also additive.
Here are the facts
Typical power line filters either redirect the AC noise from hot to neutral or place an intrusive circuit between the AC source and the connected gear.
The more common Series Filters like those from Monster Cable, Panamax and even our own Dectet add resistance at noise frequencies between the AC outlet and the equipment, thus building a partial barrier between the noise and the gear.
They work well to block some portion of noise from the equipment, but they don’t lower noise on the AC line – they reduce noise only to the connected equipment. Power line noise is not actually eliminated on the power line itself, it is simply redirected away from the equipment and this is far less effective than actually eliminating it.
Only the Noise Harvester collects the noise, removes it from the house power line and then converts it to light. So you can see noise being eliminated.
Works great as a measurement tool
Harvesters work great as a noise measurement tool as well. Plug the Harvester in at various outlets in your home to discover which are noisier than others. By narrowing down the noise culprits, you can then decide where to place the Harvesters for best benefit.
So, does it replace my power conditioner?
No, it supplements it. Power conditioners, Power Plants or any type of power line noise filters reduce line noise by a certain amount depending on their design.
The less noise you have on the line in the first place, the better your power conditioner will work. So, the Harvester is your first line of defense against noise.
Use as many Harvesters as you can to lower the overall line noise in your home. They can be placed anywhere in the home to do their job and the more the better.
Once the line noise has been harvested, then you use your power conditioners, Power Plants or other noise filtration systems to feed your equipment.
Think of the Noise Harvester like a water filter. Water filters don’t produce pure water, instead they produce cleaner water than what went into the filter in the first place.
So, the cleaner the power line is to start with, the cleaner the power going into your equipment is.
The bottom line?
With any audio system, no matter what brand of power conditioner you’re using now, you’ll hear the improvement. Plug in just one Noise Harvester and the improvement will be both immediate and obvious.
Background noise and the apparent blackness of the musical soundstage is improved with just one Harvester in place. The more you add, the blacker the background gets. Harvesters also remove some of the hard glare you hear on music – a glare most of us aren’t even aware of until it is gone. Add a Harvester and the improvements are immediate and obvious. No break in time required.
The more Harvesters you add to the room, the lower the noise level on the line. Which is cool, since they’re incredibly small and affordable devices. They make an immediate sonic and visual improvement.
Harvesters really work and should be placed around the listening room as well as next to appliances throughout the home that are noisy. Place a Harvester as close as possible to your television, computer, any type of modern power supply for cell phones and mobile devices, and certainly anywhere there is a light dimmer in play.
Harvesters just may be one of the most effective noise reduction devices you’ve ever added to your system. Available in singles or you can save with a 5-pack.