Is this $40 card a SCAM?

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Are you a distinguished audiophile who uses their PC for high-end audio reproduction? Or perhaps you just want the best possible sound to come out of your speakers… so can you smooth out the power delivery of your PCI-e bus with a $40 power filter card?
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  1. The Legacy

    The Legacy23 hours ago

    That was the most wholesome segue I've ever seen Linus do. :D

  2. KingsCrutch

    KingsCrutchDay ago


  3. River Granniss

    River Granniss2 days ago

    I love Linus' dad-ness. It's cute and I love it.

  4. Doug Gabbard

    Doug Gabbard4 days ago

    Playing Devil’s Advocate: Sort of hard to see how a power rail filter works without hooking up an oscilloscope to look for noise.

  5. pocoapoco2

    pocoapoco25 days ago

    A passive filter has to be in series , not in parallel in order to do anything. It’s a completely useless piece of junk.

  6. SilenceUnderFire

    SilenceUnderFire5 days ago

    Not going to lie. Was waiting for the "FULL BRIDGE RECTIFIER!" when talking about AC to DC conversion lol.

  7. NickShl

    NickShl6 days ago

    RightMark Audio Analyzer much better solution to try differnece that just ears!

  8. Toma Stefan

    Toma Stefan6 days ago

    1:27 fuuuuuuuuuuuul bridge oh wait wrong channel

  9. Ya Code's Development stuff

    Ya Code's Development stuff6 days ago

    Linus, connect cables from headphones to another PC's mic cables, and try recording in Adobe Audition and finding noise differences on the graph.

  10. SubVersa

    SubVersa6 days ago

    Try overclocking .-.

  11. Christian Sørensen

    Christian Sørensen7 days ago

    I had a system awhile back...and it picked up Russian radio.. Very low volume.. but when it was silenced not working.

  12. Austin Dean

    Austin Dean8 days ago

    Father Linus

  13. Ian Durbin

    Ian Durbin9 days ago

    Wow that’s cool Linus uses Grado hemps

  14. Dustin Haus

    Dustin Haus9 days ago

    There was a caller at Dell tech support, who's PC would go all wonky and crash randomly, all the time. turns out the PC was next to an elevator shaft, crashed every time it went by. EMI has come a long way. since the 70's

  15. Justin Higgs

    Justin Higgs10 days ago

    Sound Blaster Audigy Z2 gang


    MΛRCUS HΞLIUS11 days ago

    Good old E-Trash from China, they build polluting factories, that produce useless things that end up in landfill 90% of the time...

  17. Josh Rhine

    Josh Rhine12 days ago

    ironically, I have a wicked audio setup, and when he played those songs they genuinely sounded amazing in my headset.... far better than the rest of the video.

  18. Sergiu D

    Sergiu D12 days ago

    To hear hising, u have to use active speakers, not headphone. I've experience this kind of problems, on headphones it stays hiden.

  19. maverickbna

    maverickbna12 days ago

    One of the slots on that power filter card sure looks like a conventional PCI cardslot.

  20. maverickbna

    maverickbna12 days ago

    You're not using an oscilloscope to look at the noise? That would be an objective test.

  21. Mane

    Mane12 days ago

    3:28 Yeah, i but old hifi audio component's and a rack for 15 dollaridues and it works fine And the component are from the 80s and 90s

  22. sloma111

    sloma11112 days ago

    Without Anthony or someone wit actual basic electrical/audio knowledge this vid is useless. First of all I think you should use microfone recording noise as reference. I was confused Linus- were you listening to headphones or rather inside-pc-case noise? What is the testing method? Lame.

  23. Matt Dogg

    Matt Dogg13 days ago

    the only way to find if this card really works, is plug an occiloscope to the audio output, play some kind of square and sine wavess, and check the output waves fit

  24. Retnaburn

    Retnaburn13 days ago

    I haven't got further than the description of the card yet but wanted to say that I used a PC on a semi-truck, and when I connected the audio wired to the truck radio I would get a bad static due to some kind of power issue. I fixed it with a filter, but I imagine something like this (if it actually does what it claims) may have been helpful in that specific situation.

  25. NikonGuy

    NikonGuy13 days ago

    That card is literally the PC version of those magnets that are supposed to improve fuel efficiency by “reconfiguring” the fuel flow in your car.

  26. Isaac Cady

    Isaac Cady14 days ago

    PSA: A lot of those cheap DACs and Amps can actually create more interference than even the worst-offendong PCs. You may have success, but I've owned 2 Fiio DACs and one amp and an amp from another cheap company and they all sounded worse and more buzzy than the on-board audio. Also, they picked up my phone's radio interference a lot, making me think they're not shielded. (I never opened them up, because I just returned them.) I ended up with a schitt dac/amp combo. It works fine. Pricey for what it is, but it's still cheaper than audiophile stuff, so it's a decent compromise. Dunno if I'd recommend or not. The best solution for moust scenarios is to get a mobo with a sound chip you know is good.

  27. A.C.T. Solutions Inc

    A.C.T. Solutions Inc14 days ago

    Sad I missed this until now.... If that book is still available I'm buying one for my 4yr old little girl!

  28. bobingabout

    bobingabout14 days ago

    I used to hear the CD drive activity coming out of the speakers on my first PC

  29. Graham Davenport

    Graham Davenport15 days ago

    I see those Grado Hemp, Linus.

  30. Car

    Car15 days ago

    No way my grandma has this in her bathroom

  31. Viktor Moldvaji

    Viktor Moldvaji15 days ago

    Testing method was not OK. I don't know will it work at all, but on my opinion what you should have done is install some DAW software, set it for recording and check floor noise level with vs. without this mambo-jumbo card. - track level meters from DAW. There is no way that it can improve DA conversion quality or sound quality at general, but it could impact noise floor (again if it works at all).

  32. Parker Duncan

    Parker Duncan16 days ago

    Why not just buy a $40 USB audio interface at this point....... It will just have better sound period....

  33. Nathaniel Hellewell

    Nathaniel Hellewell16 days ago

    Are those Grado Hemps sitting on top of the PC?

  34. burra7

    burra716 days ago

    so maybe measure a sine wave, and see if one can even measure any difference

  35. koila maoh

    koila maoh17 days ago

    I have a nice speaker bar, which I would need to turn up full blast, to hear that annoying "buzzzing" static.. But if i Keep it normal, barely can hear anything. While my speaker bar has no base, its for "clarity" of voices and sound, very clear, lovely, sucks no base tho. Prety sure my desktop PC with its couple of fans are much louder. But If I were to use cheaper speakers with little base or surround sound ones I have, these produce static/noise.

  36. Giuseppe Rana

    Giuseppe Rana17 days ago

    The methodology in this video is laughable. No measurements whatsoever. Waste of time.

  37. Itsumademo Shiawase

    Itsumademo Shiawase17 days ago

    Linus Drop Tips continues to deliver!

  38. Marc VanTol

    Marc VanTol17 days ago

    Concerning the AC to DC conversion at about the 2 min mark. I showed this video to my pal Mehdi Sadaghdar and he recommended that the best circuit to use would be a "FULL BRIDGE RECTIFIER!"

  39. Lofi Urbex

    Lofi Urbex17 days ago

    I might be able to help explain some things. So first of all, the idea of having all kinds of different caps is that different caps can in fact help filter different frequencies. But the problem here is the sound you're hearing doesn't come from them not being filtered out, its coming from the 30-80k switching speed of a stepping transformer on the board. This is a normal function of inductors and no amount of filtering caps will help that. It is being produced artificially through the switch mode power supply itself. Hell, it's even in the name. SWITCH mode. It switches its frequency so fast, it literally shakes the coil on an atomic level, and this is what you're hearing. If you're wondering why you can hear it even though it's outside of our technical hearing range, it's because the harmonic frequencies ARE in our hearing range. Hence, you we hear a whine. Playing music actually masks this, as the song is able to over-power the noise floor. Its only when it's dead silent that you'll notice it. I notice it when I'm using photoshop and I'm adjusting things like color balance. I can hear an audible high pitch noise from my PC as I'm adjusting my sliders. The second I stop, it stops. The secret to stopping this is noise isolation, which will be built into high end boards. The way it works is that all the 'noisy' stuff happens on one side of the board, then they use an isolation transformer to send that processed signal to an electrically separated part of the board, which would be the output. Since the output side is isolated, this noise doesn't end up coming out your speaker, but that doesn't change the fact that the physical inductor on the non-isolation side is still susceptible to the high speed switching that must occur. So long story short, you can almost always stop it on the speaker side, but on the PC side, that's just dependent on the physical design and engineering of the components inside.

  40. Christopher Staples

    Christopher Staples18 days ago

    what is with the 100V caps ?

  41. Al Gritzmacher

    Al Gritzmacher18 days ago

    If you're really concerned with electrical noise from the computer, get the sound card out of the computer. Use a USB DAC. Most noise in external speakers, especially powered ones, is ground loops.

  42. Malware

    Malware18 days ago

    holy shit hes using the hemp headphones

  43. Dawn

    Dawn18 days ago

    Hey, I knew I recognized those headphones! Recently saw them on a Dankpods video, lol.

  44. Bubbax 12

    Bubbax 1218 days ago

    D is for dram cache!!

  45. Jeff B

    Jeff B18 days ago

    Linus: my first sound card was an audigy Me: *laughs in sound blaster 16 isa*

  46. Ian Stephenson

    Ian Stephenson18 days ago

    I use a ground loop filter between my Pc and my amp (Fender Rumble 60W) and it does get rid of the buzz- but that is directly between the two. For under £8 it works wonders.

  47. louisvl10

    louisvl1019 days ago

    He let it fall on the floor, that's why it don't work. SCAM

  48. MrDegsy69

    MrDegsy6919 days ago

    Fit a pci slot plate optical toslink socket to the digital out pins then connect to the optical in on an external dac. As you are streaming pure pcm binary data through a non electrical connection there will be inductance or capacitance distortion through ground loops of radio frequency switching effects from components inside the case.

  49. Branislav Mihaljev

    Branislav Mihaljev19 days ago

    For me, worst case is when people pay $$$ for ultra super silver/gold power cord to have a better sound and they claim they here "more open sound"... This card might even work... something, but that is a measurable thing, you know, using an oscilloscope.

  50. weetreat

    weetreat19 days ago

    My job would probably sell that aka scholastic book fairs lol

  51. Sean Cleary

    Sean Cleary19 days ago

    I am a drone pilot and I have built my own drones and tried diffrent things and can say with complete confidence that capacitors do make a huge difference. It all just depends where you put them. On my drones there is usually one big capacitor filtering directly from the battery and a few smaller capacitors filtering out the reverse signal coming from the motors. And on a computer I would say the best place to put any kind of filtering would be on the pins coming directly out of the power supply.

  52. radradroadbot

    radradroadbot19 days ago

    You need to power big speakers to notice. Not tiny headphones

  53. MrAlkaline

    MrAlkaline19 days ago

    I mean, i always had a soundcard in my pc 🤷‍♂️

  54. boranblok

    boranblok19 days ago

    Who else fully expected him to drop the entire pc at 9:45 ?

  55. Annurissimo 10

    Annurissimo 1019 days ago

    Why is Linus allowed to write a book about gaming? Who authorised that? Did you see Linus play any game, like, EVER?

  56. 1chi TheKilr

    1chi TheKilr19 days ago

    So I notice the videos from this channel are a different aspect ratio than the standard 16:9 from nearly every other channel. Just curious what it would be.

  57. Jerri Coverstone

    Jerri Coverstone19 days ago

    Back in the day when copying music to make MP3s was really pissing off Metallica, various attempts where made to make copying music from Cds hard. Some things worked to digitally protect the music on a cd, but there was always one guarenteed but really slow way to do it, and that was to play the music at high speed and use a 3.5 audio cable from the output jack to feed back into the mic jack and just record as it played. Yep it worked but in many cases that natural hissing could be herd and defeated the whole super digital copying of a 50 minute music cd in 5 minute thing that was what it was about anyway. This card "might" have fixed that, but its only 18 years to late and solving a problem as Linus clearly states in this video Not worth the trouble to deal with, like when changing the led color.

  58. Rednassie

    Rednassie20 days ago

    Woah, those are a _lot_ of capacitors

  59. eric k wat

    eric k wat20 days ago

    Maybe? Run the audio into a line in on something that can record, that can have gain added to the signal. Then run it with and without that card and see if there’s a difference?

  60. Мартин Диклиев

    Мартин Диклиев20 days ago

    G is for git gud noob

  61. Олег Волгин

    Олег Волгин20 days ago

    Why don't you just make an empty track in audacity?

  62. lumin media

    lumin media20 days ago

    This would benefit me I have some studio monitors (Rockit 5) and is has a very load hiss when no audio is playing. It's worse when the screen is displaying a white background such as an internet browser etc etc. Very strange, I suspect it's from my video card. Anyways, like Linus says, I'd be better off upgrading internal components or better off, buying an external sound peripheral to remove the effect as well. This seems like it'd be a LAST case scenario and even then unlikely a good choice.

  63. The Cube

    The Cube20 days ago

    The fact he has the Grado Hemps is fucken awesome.

  64. Gamma1734

    Gamma173420 days ago

    11:14 Yep. Like glueing a little strip of electrical tape on the ground pin of your usb cable 😬 works well

  65. RogerWilco

    RogerWilco20 days ago

    9:50 Youngsters might not remember this, but there was a time that a computer without a sound card only had the PC speaker. I even got a better speaker to make some games sound better. Sorry Linus, but you're a youngster as well. Don't pretend to be otherwise, unless you've been around since at least the 8086 days. I made my own "sound card" by coying the Covox DAC design on the Centronics parallel port.

  66. Sean Sollars

    Sean Sollars21 day ago

    Yeah the fans in my new build are loud, might seek Be Quiet fans in the future.

  67. Sean Sollars

    Sean Sollars21 day ago

    Why face the fan of the PSU up not down?

  68. Tintin

    Tintin21 day ago

    I thought it has sli

  69. Name here

    Name here21 day ago

    Grado Hemps (Nice)

  70. James Baynes

    James Baynes21 day ago

    I've got an Aurorus 570 motherboard and I still get wicked bad static through my speakers when no audio is being played. A painful experience.

  71. ilerien

    ilerien21 day ago

    Hmm what about recording audio

  72. Dylan Shah

    Dylan Shah21 day ago

    Should've connected it to speakers no?

  73. Yorick Hunt

    Yorick Hunt21 day ago

    As manufacturers catering to the high-end audiophile market have discovered, this product's biggest failing is its price - if they bump the price up to $4K or more, it'll perform far better (just ask the "discerning listeners" who'll happily pay $7K per metre of "directional" speaker cable). The age-old axiom "a fool and his money are soon parted" applies very well here.

  74. John Soon

    John Soon22 days ago

    Furman makes excellent power conditioners. I don't really worry about electrical noise, but it's an easy way to protect your gear

  75. Lord Trump

    Lord Trump22 days ago

    Why don't linus buy some good expensive pc components from China. Always buying some cheap low quality stuffs. Then saying blablabla, it was fun to watch at first, but you are making too many videos about these things now. Nah.... I will give it a dislike.

  76. MohamedMahmoud Ali

    MohamedMahmoud Ali22 days ago

    If you don’t like that sapphire card’s noise i would be more than happy to adopt it from you 😅, my pc litterally sounds like a jet taking off.

  77. ZG 1K

    ZG 1K22 days ago

    Should have output to a recording device and evaluated it digitally instead of relying on your hearing.

  78. lno_onel da Asian

    lno_onel da Asian22 days ago

    everyone: whoa, what a scam, how could someone do that me: whoa, he bought the helps!

  79. AsyTTV

    AsyTTV22 days ago

    When Linus is his own ad... Mad respect :D

  80. Chris Monkman

    Chris Monkman23 days ago

    He needed a much cheaper motherboard with rubbish onboard audio - mid and upwards motherboards usually have a ton of shielding and filtering to prevent noise creeping in. External soundcards also help with this.

  81. DeFlyer

    DeFlyer23 days ago

    Linus, go get a shave already

  82. S0dfish

    S0dfish23 days ago

    Is vinyl lossless?

  83. Master 09

    Master 0923 days ago

    What's about a dirty Wifi-Connection or bad Frequenzy from network and when i install in the next pcie-Port(under the Filter- Card) Can you have seen differents?

  84. Daco

    Daco23 days ago

    wait, are those the weed headphones?

  85. Biggs

    Biggs23 days ago

    ohh yah i still have that sound blaster in my studio

  86. Doug McGuffog

    Doug McGuffog24 days ago

    There shouldn't be an apostrophe in ABCs.

  87. R4Z0R84

    R4Z0R8424 days ago

    You'd also have to put the card into the first pcie connector and put the graphics card in the second. Assuming that's how the power is wired lol. Still is a huge difference going back to the audigy it's so clean and crisp

  88. R4Z0R84

    R4Z0R8424 days ago

    Should of just opened excel/Google sheets, the white and black lines makes GPUs make a high pitched buzzing sound all the time if you have it not full screen with black background.

  89. ToatsMcGoats

    ToatsMcGoats24 days ago

    a USB audio adapter does the same thing.... for $5

  90. Aaron Martin

    Aaron Martin24 days ago

    *laughs in European quality electricity*

  91. T B

    T B24 days ago

    The ABCs of FBRs...

  92. Rena Lockwood

    Rena Lockwood24 days ago

    using a high end asus board, expected to see a difference, need an older mobo that is buzzy and hissing to try it.

  93. William Winner

    William Winner24 days ago

    Why didn't you hook it up to something that could make a spectrogram? Just turn on the system and see what no sound looks like through the audio output with the volume cranked up. Then put in the conditioner and re-visualize it

  94. Lowie De Malsche

    Lowie De Malsche24 days ago

    if the thing actually does what it says it does, it should decrease power supply load by reducing the reactive current. The only way to test this properly though would be to measure the current draw and not the wattage because the wattage is the active current and not the reactive current

  95. Leo Minecraft Play

    Leo Minecraft Play24 days ago

    To be specific those are grados hemp

  96. Kr173r10n

    Kr173r10n24 days ago


  97. Dylan Connors

    Dylan Connors24 days ago

    I think I see a pair of Hemp-phones up on that case!!!

  98. Kair Hatchet

    Kair Hatchet25 days ago

    Yea its for sure a DJ Thing

  99. Kair Hatchet

    Kair Hatchet25 days ago

    If you were surrounded by inductive loads this could make sense. This is like, for DJ's and shit who want to have their volume at over 6000% It should be able to filter out all those very high hisses you always get when plugging multiple amps into each other. Plug your laptop into some desk speakers, plug your headphones into your speakers, crank the headphones, laptop, speakers. All that noise you're hearing, imagine that on stadium amounts of speakers. yeaaaaaaaaaaaa Gotta filter that shit out

  100. Kair Hatchet

    Kair Hatchet25 days ago

    I'm guessing that white noise you hear when your headphones are CRAAAAAAAAAAANKED And listening to nothing is what they're trying to filter out. Other then that, no fucking clue. The best way to produce music is with multiple headphones. Start with a semi decent pair, move onto absolute garbage, clean up with pro headset. This way you can tell how everyone will hear your music. The 1% who can here the flaws won't care enough for it to matter. They're too rich to bother with you.