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JacobsParts AFILTER-B 2-Channel RCA Stereo Ground Loop Isolator

3.7 3.7 out of 5 stars 220 ratings
$9.99
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Purchase options and add-ons

Manufacturer JacobsParts Inc.
Mounting Type Surface Mount
Brand JacobsParts
Number of Channels 2

About this item

  • Eliminates humming and buzzing due to ground loop issues
  • Filters out DC current in the signal path
  • Connectors: 2x RCA Male, 2x RCA Female
  • Passive in-line device
  • Current Rating: 20A

Additional Details

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Product details

  • Package Dimensions ‏ : ‎ 5 x 4.72 x 1.26 inches; 3.56 ounces
  • Item model number ‏ : ‎ AFILTER B
  • Date First Available ‏ : ‎ February 9, 2015
  • Manufacturer ‏ : ‎ JacobsParts Inc.
  • ASIN ‏ : ‎ B00TED5T64
  • Customer Reviews:
    3.7 3.7 out of 5 stars 220 ratings

Product Description

Eliminate ground loop humming and buzzing noise between an audio source and an amplifier. When used with car audio, this isolation circuit goes between the head unit and the amp or EQ.

Looking for specific info?

Customer reviews

3.7 out of 5 stars
3.7 out of 5
220 global ratings

Customers say

Customers like the performance of the electronic component amplifier. They say it really works and cuts almost all humming. However, some customers have different opinions on sound quality and quality.

AI-generated from the text of customer reviews

24 customers mention17 positive7 negative

Customers like the performance of the electronic component amplifier. They say it really works, is awesome, and is a pretty cool gadget. Some say that it provides more highs when connected and is very reveling and detailed.

"...to them thru my home DJ setup that has 5 subs and 4 tops and it's very reveling and detailed as well, so if there is an issue you will hear it...." Read more

"Works well." Read more

"...the unit came quickly and when they said it would - It just doesn't work for my problem." Read more

"These are awesome!" Read more

4 customers mention4 positive0 negative

Customers like the value of the electronic component amplifier. They say it's perfect for the price.

"...I would buy it again.Was worth the under $10 price tag." Read more

"...It's cheap enough to give it a try. Good luck." Read more

"Good price, good quality and fast delivery!" Read more

"Perfect for the price..." Read more

34 customers mention21 positive13 negative

Customers have mixed opinions about the sound quality of the electronic component amplifier. Some mention that it eliminates alternator whine and makes the noise essentially imperceptible. Others say that it increases the level of hum and reduces bass audio by more than half.

"...the new Kenwood deck and amp, and they completely eliminated the noise without degrading sound quality...." Read more

"Killed my bass to my amp, horrible static sound intensified" Read more

"IT WORKED FOR ME!! Buzz noise totally gone but there is still a small slight hum noise still noticeable but not present in the audio/music is..." Read more

"...It done as advertised and got rid of the hum. That said there was severe drop in overall db output for my subwoofers...." Read more

10 customers mention6 positive4 negative

Customers are mixed about the quality of the electronic component amplifier. Some mention it's a quick and reliable fix that takes care of the problem instantly. However, others say it'd be disappointing and cause a severe drop in overall db output for subwoofers.

"...I love this unit, it is a quick and reliable fix to get rid of most if not all ground loop issues, and there are plenty of good (copper) cables on..." Read more

"...That said there was severe drop in overall db output for my subwoofers...." Read more

"Works great and solved him problem" Read more

"This product was very disappointing. It actually greatly increased the level of hum rather than reducing it!" Read more

Work very well!
5 Stars
Work very well!
I use this on my computer with 3.5 male to RCA male adaptor, and it got rid of the ground loop coming from the pc when I watch movies on my laptop, I listen to them thru my home DJ setup that has 5 subs and 4 tops and it's very reveling and detailed as well, so if there is an issue you will hear it. RCA cables are unbalanced and sometimes pick up EFI signals or produce ground loops as it did in my system: even some of the best and more expensive round wire RCA cables have this flaw although they are less noticeable in most costly cables and not hardly at all in flat wire RCA cables.You must first find where the issue is in your signal path to hook the unit up in it's proper place and it should work for you. I also us it sometimes to get rid of the hum from RCA cables when running my controller into a system that I plug into of a clients that my not have a balanced inputs. I love this unit, it is a quick and reliable fix to get rid of most if not all ground loop issues, and there are plenty of good (copper) cables on the market that won't break the bank if you do your research. I recommend this product. Sure there are lots of products that can perform better and address multiple issues' but they are also 4 times the price or more for just about the same result. ultimately it is what works for you. This worked for me!
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Top reviews from the United States

NVCanuck
5.0 out of 5 stars Worked perfectly for me, a bit bulky
Reviewed in the United States on December 22, 2019
Verified Purchase
I tried everything to resolve a ground loop problem. Developed a loud alternator whine after replacing stock head unit on an old Benz with the factory Bose system. I installed a pair of these between the new Kenwood deck and amp, and they completely eliminated the noise without degrading sound quality. They are quite large, so for some applicstions it may be tricky to tuck them in the dash behind the head unit. Mine was snug but fit. Very happy with purchase!
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DJ MARVELL
5.0 out of 5 stars Work very well!
Reviewed in the United States on May 27, 2022
Verified Purchase
I use this on my computer with 3.5 male to RCA male adaptor, and it got rid of the ground loop coming from the pc when I watch movies on my laptop, I listen to them thru my home DJ setup that has 5 subs and 4 tops and it's very reveling and detailed as well, so if there is an issue you will hear it. RCA cables are unbalanced and sometimes pick up EFI signals or produce ground loops as it did in my system: even some of the best and more expensive round wire RCA cables have this flaw although they are less noticeable in most costly cables and not hardly at all in flat wire RCA cables.
You must first find where the issue is in your signal path to hook the unit up in it's proper place and it should work for you. I also us it sometimes to get rid of the hum from RCA cables when running my controller into a system that I plug into of a clients that my not have a balanced inputs. I love this unit, it is a quick and reliable fix to get rid of most if not all ground loop issues, and there are plenty of good (copper) cables on the market that won't break the bank if you do your research. I recommend this product. Sure there are lots of products that can perform better and address multiple issues' but they are also 4 times the price or more for just about the same result. ultimately it is what works for you. This worked for me!
Customer image
DJ MARVELL
5.0 out of 5 stars Work very well!
Reviewed in the United States on May 27, 2022
I use this on my computer with 3.5 male to RCA male adaptor, and it got rid of the ground loop coming from the pc when I watch movies on my laptop, I listen to them thru my home DJ setup that has 5 subs and 4 tops and it's very reveling and detailed as well, so if there is an issue you will hear it. RCA cables are unbalanced and sometimes pick up EFI signals or produce ground loops as it did in my system: even some of the best and more expensive round wire RCA cables have this flaw although they are less noticeable in most costly cables and not hardly at all in flat wire RCA cables.
You must first find where the issue is in your signal path to hook the unit up in it's proper place and it should work for you. I also us it sometimes to get rid of the hum from RCA cables when running my controller into a system that I plug into of a clients that my not have a balanced inputs. I love this unit, it is a quick and reliable fix to get rid of most if not all ground loop issues, and there are plenty of good (copper) cables on the market that won't break the bank if you do your research. I recommend this product. Sure there are lots of products that can perform better and address multiple issues' but they are also 4 times the price or more for just about the same result. ultimately it is what works for you. This worked for me!
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One person found this helpful
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David
1.0 out of 5 stars Poor product
Reviewed in the United States on January 29, 2024
Verified Purchase
Killed my bass to my amp, horrible static sound intensified
Helpful
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DDPlace
4.0 out of 5 stars Buzz gone!
Reviewed in the United States on December 15, 2019
Verified Purchase
IT WORKED FOR ME!! Buzz noise totally gone but there is still a small
slight hum noise still noticeable but not present in the audio/music is played. I would buy it again.
Was worth the under $10 price tag.
Helpful
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Kevin Robertson
3.0 out of 5 stars Kind of works...
Reviewed in the United States on October 3, 2020
Verified Purchase
I installed this in a home theater system to help with the hum I was having in my dual subwoofer setup. It done as advertised and got rid of the hum. That said there was severe drop in overall db output for my subwoofers. I had to readjust all subwoofer settings and I'm still not exactly at the same output that they were at prior to installing. This will work for now because hell it was only a few bucks. But still looking for a better fix.
4 people found this helpful
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jjm
5.0 out of 5 stars eliminated alternator whine
Reviewed in the United States on June 13, 2019
Verified Purchase
I installed this into my 2003 Chevy Avalanche, after installing an aftermarket system. The alternator whine was unbearable before, and these took it away. This is installed in the speaker line - I installed it direct to the head unit, connecting the speker lines to it. BIG thumbs up. It was a bit cumbersome to shove this back into the dash, but I had to add a custom install kit for my vehicle, so if you're just adding a head unit, with a standard wiring harness, it'll go much easier. I had tried an isolator on the power line, and it helped a bit, but these took the rest away. I'm happy, and my kids can hear their movie, now. That alone made this a critical piece of the install.
One person found this helpful
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Some bloke
2.0 out of 5 stars Didn’t work
Reviewed in the United States on January 24, 2018
Verified Purchase
Didn’t eliminate the alternator whine coming from the speakers.
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Rollis
5.0 out of 5 stars Well made
Reviewed in the United States on July 9, 2023
Verified Purchase
Works well.
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