There is no "bad" anything.
In fact,
The ADD-Powr idea is not about filtering noise.
It adds signal, and does not filter nor address noise.
Do you remember the term signal-to-noise ratio, or S/N?
If you increase S what happens to the ratio?
My math says the ratio gets larger.
Go get yourself a dB sound level meter.
Play pink noise or white noise into your system.
Send it as mono or stereo feed.
Take said meter locate and position and point it at:
1 - 2 feet from each speaker
Repeat from 5 feet.
Repeat from the sweet spot between speakers
Record the measurements.
Plug in an ElectraClear or any ADD-Powr product, and repeat the above.
End of story.
In fact,
The ADD-Powr idea is not about filtering noise.
It adds signal, and does not filter nor address noise.
Do you remember the term signal-to-noise ratio, or S/N?
If you increase S what happens to the ratio?
My math says the ratio gets larger.
Go get yourself a dB sound level meter.
Play pink noise or white noise into your system.
Send it as mono or stereo feed.
Take said meter locate and position and point it at:
1 - 2 feet from each speaker
Repeat from 5 feet.
Repeat from the sweet spot between speakers
Record the measurements.
Plug in an ElectraClear or any ADD-Powr product, and repeat the above.
End of story.