PAC Ground Loop Signal Isolator, SNI-1
PAC Ground Loop Signal Isolator, SNI-1
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PAC

PAC Ground Loop Signal Isolator, SNI-1

Key item features

  • Noise Elimination: Effectively eliminates ground loop noise occurring between the audio source and the radio, ensuring clearer sound.
  • Device Compatibility: Designed for use with portable devices featuring RCA audio outputs, including those with preamp outputs.
  • Signal Clarity: Reduces most noise present within RCA signal paths, enhancing audio quality.
  • Frequency Response: Delivers a precise frequency response of 0.03 dB across the range of 2 Hz to 20 kHz.
  • Audio Transformers: Incorporates proprietary audio transformers to achieve a 1.3-dB gain in the audio signal.
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Current price is $15.99
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  • Free shipping
  • Free 30-day returns

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Columbus, 43215
Arrives by Fri, May 1
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Sold and shipped by Deff Audio
4.328571428571428 stars out of 5, based on 280 seller reviews(4.3)
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3.4 out of 5 stars
stars11 ratings9 reviews
How item rating is calculated
  1. 5 stars45% (5)
  2. 4 stars18% (2)
  3. 3 stars0% (0)
  4. 2 stars0% (0)
  5. 1 star36% (4)
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Showing 1-3 of 9 reviews

Jan 9, 2014
Freeride4tom
5 out of 5 stars review

Verified Purchase

Perfect solution for new radio installations

I purchased a new Clarion head unit for my 2005 Nissan Xterra which has the Rockford Fosgate premium sound system ( 9 speakers ,380w amp, and subwoofer under seat). Every time I changed the source or turned the radio off I'd get a capacitor thump because the new radio grounds the RCA connector during no signal output. After installing (2) PAC SNI-1 units all noise was eliminated and sound quality wasn't changed. A simple solution for a big problem. Walmart price was better than Amazon and I picked them up at the local store in 2 days.

Helpful?7BNSI580NMQO21550471
Dec 12, 2025
Alvin
Sold and shipped byShopaudioxtc
5 out of 5 stars review

Verified Purchase

noise reduction must have

cleanes up my sound

Helpful?7BNSI580NMQO21550471
Sep 14, 2014
Anonymous1234567890123456
5 out of 5 stars review

Excellent

There was an annoying noise when I was using a cable from RCA red/white AV ports in the car to a 3.5 mm (headphone) connector to plug into my phone (so I could run audio from the phone through the car speakers). It was worse because I had to turn up the volume to hear which made the noise louder, etc. This device worked perfectly to completely eliminate the noise. I also love how Walmart only uses FedEx and it is free to pick up at a FedEx Office location if you won't be home to receive the delivery. I hate UPS and USPS.

Helpful?7BNSI580NMQO21550471