00:00That awful buzzing sound in your car speakers, you know the one.
00:03That low, constant hum that shows up the second you plug your phone into the AUX jack
00:08and gets louder when you press the gas?
00:11Yeah, that's a ground loop, and it's not your stereo going bad.
00:15It's a fixable problem, and the fix costs less than lunch.
00:19I've gone through the top 5 audio isolators that actually kill hum and noise,
00:23found the best deals on all of them, and I'm breaking them down right now.
00:28Starting with the Essager 3.5mm AUX Audio Noise Filter.
00:33This is the one I'd hand to a friend who just wants the problem gone with zero thinking involved.
00:38It's a straight-inline 3.5mm isolator, plug it between your phone and your head unit,
00:43and the transformer inside breaks the ground path that's causing the buzz.
00:47What I like is the build quality here, the housing feels solid, the connectors are snug,
00:52and it's not going to rattle around in your center console.
00:55Nearly 5,000 of these have sold, sitting at a 4.5-star rating, and it's $7.61.
01:02For $7 to make an annoying noise permanently disappear, that's an easy yes.
01:07Next, the ABZZ Audio Signal Noise Reducer, and this one's for a totally different setup.
01:13It's a two-way RCA isolator, so if you're running a proper amp, a subwoofer,
01:18a home stereo receiver, or a turntable setup, this is your guy.
01:22RCA connections are where ground loops love to live, especially with amplifiers sharing power
01:27with your car's electrical system. Two channels in, two channels out, clean signal through.
01:33It's $7.56, 4.5 stars, and almost $4,900 sold. If you've got an amp whining at you every
01:41time the
01:41engine revs, this is the fix. Third up is the plain and simple 3.5mm audio AUX cable with the
01:48built-in noise filter. This one's different because it isn't a dongle, it's an actual AUX
01:54cable with the isolator built right into the line. So instead of stacking adapters and having this
01:59awkward dangling thing hanging out of your phone, you just swap out your existing cable and you're
02:04done. Cleaner, less stress on your phone's headphone jack, and one less thing to lose.
02:10$5.75, 4.5 stars, and nearly $4,800 sold. If you are already going to buy a new AUX
02:17cable anyway,
02:18honestly, just buy this one instead. Number 4 is the WVV MVV speaker line noise filter,
02:25and this is the value pick of the whole video. $4.69. That's it. And it's rocking a 4.8
02:33star rating,
02:34which is genuinely higher than most of the pricier options here. It handles both car stereo and home
02:40stereo setups, and people keep saying the same thing in the reviews, plugged it in, buzz gone,
02:45didn't think about it again. At under $5, this is the one where I'd say grab two.
02:51Keep one in the car, keep one in the bag, because you'll eventually want a spare.
02:56And rounding out the list, the highest rated of the bunch, this 3.5mm anti-interference ground
03:02loop isolator at a 4.9 star rating. That's about as close to perfect as you'll ever see on a
03:08product
03:08with this many sales. It's an inline AUX isolator with anti-interference shielding, and it doesn't
03:14just tackle the alternator whine, it also cuts down on that electrical hash and RF interference you get
03:19from charging cables and cheap USB adapters. $5.71, and 3,800 people have bought it. If you want the
03:27one with the best track record, this is it. All five of these are linked down in the description,
03:33and I've matched them up with the best prices I could find, so go grab whichever one fits your setup.
03:38If this saved you from throwing out a perfectly good stereo, hit that like button,
03:42and subscribe for more cheap fixes to annoying problems. I'll catch you in the next one.
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