Install Bay IBNF50 Noise Filter 50 AMP Each

After read many reviews for noise filters, I took a risk on this one. I wanted a 20 amp filter for my android head unit installed in my 2002 Honda CR-V with aftermarket alternator. (NAPA Brand). I had a background high frequency buzz that was RPM based and it was very annoying. The IBNF50 arrived overnight and I popped the metal back off to inspect the solder joints. Minimal build quality, but functional. Double sided tape provides anti-grounding protection to the metal box. I desoldered the provided wires (that were very thick and could handle 50 amps) and directly soldered it into the wire harness on the back of the Android radio. I used the yellow power for Vin and Vout and spliced directly into the harness ground rather than the car body. I reassembled the box, taped it up on the wire harness so it wouldn't create any wire stress and fed it all back into the dash. 100% cessation of alternator noise. Very happy with this solution. Given that the head unit has a 20 amp fuse it will never pull enough amps to saturate the noise filter windings. I will buy this again for other filter needs.

This does not do what I wanted. Electrical noise still appears on the line

Removing the "alternator" whine in the speakers from the amp did not work. Wiring the amp power with this item did not resolve the issue. High-quality product. Not the item's fault. Still "chasing" the issue. Recommend the item as a try, but did not solve mine.

Got this because of engine noise coming through in CB. A little tediuos to mount but works...

Quick ten minute install and seems to have completely eliminated my alternator-induced whine.

In my experience, it made absolutely no difference. Noise still present. It didn't even reduce it by a bit. It's fully there. I saw lots of positive reviews so I had faith on it, not anymore after trying myself

Opened to see circuit and quality. Believe it will work fine for AM broadcast and HF frequencies. It uses conventional Pi (C-L-C) design. I won't use it in my truck or car, since the case is 0 020" (0.5mm) steel and will soon rust. Base mounting plate is BARE (unpainted)! Furthermore the gap between base plate and case isn't sealed. Needs, at a minimum, caulk to keep water out. Buy if you don't mind painting and sealing it .

Great product. Works well.

Excellent! It removed the hazy noise ony car

didn’t really suppress the noise in the radio that much, slight improvement

The unit works as expected. Has nice connectors. I shaved the sides down so I could bolt them straight to my amplifiers. Good guage of wire provided. Well insulated. Flexible, braided wire. I'd certainly purchase them again! I had a loud alternator noise and my electronic aftermarket fans were quite noisy - I purchased two of them and they took all the noise out of the amps.

Works to remove alternator buzz. Wiring the ground is advised for better results. Took away the buzz at our headsets in our sport airplane

all good, works and easy install.