# Speaker cable ferrite cores
**URL:** https://discourse.midwestaudio.club/t/speaker-cable-ferrite-cores/753
**Category:** General
**Created:** [September 3, 2026, 11:06pm UTC](https://discourse.midwestaudio.club/t/speaker-cable-ferrite-cores/753 "2026-09-03T23:06:44Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@tajanes](https://discourse.midwestaudio.club/u/tajanes)
#### Post date: [September 3, 2026, 11:06pm UTC](https://discourse.midwestaudio.club/t/speaker-cable-ferrite-cores/753/1 "2026-09-03T23:06:44Z")
Science or Snake Oil ?
The British Audiophile suggests trying a ferrite core over one wire near your speaker. ???
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### Author:  [@Wolf](https://discourse.midwestaudio.club/u/Wolf)
#### Post date: [September 3, 2026, 11:35pm UTC](https://discourse.midwestaudio.club/t/speaker-cable-ferrite-cores/753/2 "2026-09-03T23:35:17Z")
Won’t do much at speaker voltage. Line level, signal level from RCA or 3.5mm is a different story.
The only reason I’ve used them on speaker wires is to cover up a visual blemish.
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### Author:  [@4thtry](https://discourse.midwestaudio.club/u/4thtry)
#### Post date: [September 4, 2026, 12:55am UTC](https://discourse.midwestaudio.club/t/speaker-cable-ferrite-cores/753/3 "2026-09-04T00:55:36Z")
RFI suppression? But a well designed amp should already have this issued covered.
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### Author:  [@Tom\_S](https://discourse.midwestaudio.club/u/Tom_S)
#### Post date: [September 4, 2026, 2:49am UTC](https://discourse.midwestaudio.club/t/speaker-cable-ferrite-cores/753/4 "2026-09-04T02:49:21Z")
See if that British guy has any skin in the game when it comes to selling these things. Too many shills out there hyping stuff for a little commission these days.
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### Author:  [@tajanes](https://discourse.midwestaudio.club/u/tajanes)
#### Post date: [September 4, 2026, 5:01am UTC](https://discourse.midwestaudio.club/t/speaker-cable-ferrite-cores/753/5 "2026-09-04T05:01:57Z")
Thx, answered