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  • SilkWire ground loop isolator
 Rated 4.8 Excellent - Trusted By 17,000+

SilkWire ™

$119.99
$119.99
SAVE Liquid error (snippets/price line 116): Computation results in '-Infinity'% Sold out
 

check_circle Keep your bass full while the hum goes

check_circle Silence the buzz and hum in your speakers

check_circle Cut the hum right in the RCA line

check_circle Hide it out of sight behind the dash

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  • Find the RCA line that runs from your head unit to your amp.
  • Plug the attached cable's male RCA plugs into the head unit side.
  • Connect your amp's RCA cables to the female jacks on the isolator body.
  • Start the engine and listen for the hum to drop out of the signal line.

  • Black 2-channel RCA ground loop isolator
  • Attached cable with two male RCA plugs

Once your item/s is dispatched,
the estimated delivery time is:

- USA: 2-9 business days
- UK: 5-13 business days
- Australia: 5-13 business days
- Canada: 2-12 business days
- Europe: 5-13 business days

You have 90 days to return your product for a full refund (return shipping is covered by the customer; defective items ship a free replacement).

✓ Official Authorized Retailer

This product is not available on Amazon or eBay. You are purchasing directly from the only authorized seller — which means full warranty, verified authenticity, and dedicated customer support. Beware of counterfeit listings on third-party marketplaces.

SilkWire ground loop isolator

SilkWire

 4.8/5
View full details

  • Over 17,000 recommend SilkWire

Built to quiet the line, not your music

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Break the hum right in the line

Stop the hum where it travels, in the RCA line. It goes between your head unit and amp and breaks the ground loop.

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Keep your bass full and punchy

Hear your lows come through. At 30 Hz the scope reads 1.17 V in and 1.03 V out, and at 70 Hz it reads 1.19 V in and 1.09 V out.

SilkWire
straighten

Keep it out of sight

Slip it out of view behind the dash. The body measures 63 x 38 x 13 mm (2.48 x 1.49 x 0.5 in), cable excluded.

cable

Keep the connection solid

Get a firm link at both ends. Double molded, nickel-plated RCA ends sit on an oxygen free copper cable.

Frequently Asked Questions

verified +347 experts reviewed it as the best choice in 2026
Q1 Does it kill my bass or cut my volume?
No, your lows keep coming through. On the scope the output stays close to the input at 30, 50 and 70 Hz, so your bass and your volume hold up while the hum goes.
Q2 Will it fix the buzz in my speakers?
If the hum travels through the RCA line between head unit and amp, breaking the ground loop is what it does. Unplug the RCAs at the amp: if the noise stops, the source is upstream.
Q3 Where do I install it?
It goes inline between your head unit and your amp. The male plugs on the attached cable go to the head unit, and the female jacks on the body go to the amp.
Q4 Why do I still hear some noise after installing it?
It is built for ground loop buzz and hum in the RCA line between head unit and amp. If a different kind of noise stays, the source is somewhere else in the system.
Q5 Is this better than fixing my grounding?
Clean grounds are ideal, so sort those first. If a hum still rides in the RCA line afterward, this goes inline between head unit and amp and breaks the ground loop there.
Q6 Will it fit my stereo RCA setup?
One isolator covers one stereo RCA pair, left and right, between your head unit and amp. Left and right are marked on the unit, so each channel goes to its matching side.
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