Lvpin LP-838: LITERAL TRASH! Tested, drowned & burned

[@187DAFFY]

I have a similar amp, its called a Lepy LP-838. It looks identical. I dont have the squeel or bad feedback noise coming from the speakers and i use a 12v 3A plug, it works and sounds great on my TV. I also have my Tanoy speakers and a 130Watt subwoofer connected and works effortlessly 👍

[@_luisgutz_]

Because "lvpy" is a copy, the original is Lepy

[@dorsetminstrels3864]

I don't think the guy doing the review albeit 7 years ago realizes that it is a class "D" and if his demo was not working he must have received a duff i.e. faulty product. I have four for cheap studio monitor drivers powering passive "yamaha NS10s" and they work flawlessly .

[@Deangelo21530]

I never had a problem with my Lvpin LP-838 amp. I mean... its not TIP TOP perfect, but for the cheap price of 8 bucks, it sounds great!

[@si4632]

mine was a lepy 838 sounded good for a while then started losing volume

[@tronixfix]

Get a tpa3116 and rethink your comment... Tpa3116 is @ 9$

[@tronixfix]

@Lassi Kinnunen 81 nowhere, have to buy it without a case

[@jonkaz746]

It's not the sound. It's the performance. Anybody can make a great sounding amp for as little as $3 these days. But it doesn't mean anything if it clips at 9 or so inefficient it can only draw 1-3 watts out of 12 volts. And it's class A/B amp in such a tight enclosure. Class A/B amps are inefficient and as a result they get hot which means this amp will eventually melt itself. So it isn't even designed to last lol.

[@jonkaz746]

@Lassi Kinnunen 81 I wrote "And it's class A/B amp in such a tight enclosure". I was obviously referring to the possible heat dissipation issues. It's truly bizarre to misinterpreted a post that doesn't even require a high IQ to be understood and then attempt to correct the poster for a mistake that he didn't make. That's it. I'm just clarifying my point. I won't bother responding to your argument because you didn't even read my 1st post properly there's no reason to believe you're going to read my next post properly.

[@FarrellMcGovern]

Wow, that is one of the funniest examples of "extreme electronics testing" I've seen in a long time! Thank you!!!

[@wettuga2762]

The testing was very informative and the destruction bit at the end was hilarious! I'm definitely convinced to buy one now.

[@wal]

I bet your workshop smelled great after that torture test at the end. Great video, I just subscribed.

[@KingBeeversgaming]

I've had mine for the past four years and never had a problem what you need to do is change the power lead to lower output and you will have no problems nice sound good bass

[@infinitevolume2204]

I have that exact amp and my bass output is weird my sub is moving even when its off but anyway it play my 10 inch sub very good the sub is going crazy on 3/4 volume and its on one of the 2 channels not even on the bass output and for the price this amp amazed me!!!

[@kevinlivingston9563]

10:21 I don’t know why but this was the funniest cap failure I’ve ever seen

[@metalrott324]

I built a boombox using one of these amps and powering it with a 19v lithium battery. It's running 2x 1inch tweets 2x 4inch mids @8ohms and 1 6x9 subwoofer @4ohms, I built a compact T-Line enclosure. No distortion at Nominal volume. Minimal at Max Volume but it gets Hot quick. Sounds fucking BadAss...People always give me compliments and I even built 3 for friends.

[@metalrott324]

but it was a Lepai nit that name.

[@aeromotivecustoms1707]

working on a bluetooth 2.1 boombox /sound bar project,please advice

[@combatplayer]

such a weird concept. I have a similar amp, similar price, looks identical too, even branded "lvpin" but the innards are far different. it's a proper class D amp for starters and it puts out notably more power on my 8 ohm speakers. I cant measure it though as I lack the equipment.

[@oddballlw]

Such beautiful craftsmanship! Who doesn't love a good Jeff brand cap!!

[@rafagoes8035]

HOLY SHIT, THIS GUY MUST HAVE AN AMPLIFIER THAT'S REAL, IF THIS APARTMENT IS CHEAP, LET IT BE, NOT ALL OF US HAVE IT, LIKE THIS DEVICE IS VERY EXPENSIVE.

[@buddhistsympathizer1136]

Those last two minutes were absolute gold! :)

[@twenty2082]

Should have returned it afterwards. " I don't know what happened. I plugged it in; I was Jammin' and then all of a sudden it went quiet!"

[@exiledinthepathofexile]

This is the best video about Lvpin Lp-838!!!! Ty vm i was completelly into buying one but now forget !!!

[@neardood1]

Can't say I saw anything inside it that surprised me for the price.

[@frv6610]

I have this amp but the speakers are buzzing when the volume knob is turned up a lot. The speakers are also hissing at any volume but this could be normal but is disturbing when sitting as close as i do at 80 cm from it. It's because the SNR is about 75, but it needs to be 100-110+ i think.

[@ariosx1969]

I use this to power 4 Dayton Audio bass shakers 20w pucks. It works decently for the bass shakers so I don't have to run them to my sub woofer amp which could quickly burn them. I plan on getting a Dayton Audio SA100 for them to get some more power soon. I only use the subwoofer out knob just for the bass shakers and considering I paid less than $15 for the this amp it gives my bass shakers enough to feel them quite well. If you are on a very low budget then this amp could be considered to get you by while you save up for a better 2.1 amp. But for just a bit more money you can get a much better amp out there.

[@marttimcfly]

Zckj capacitor. I enjoyed your pronunciation of it. LOL.

[@Glasrandkante]

Very nice Video! You should do something like that in your Streams, too ;)

[@FFcossag]

+FelixBraun I've considered streaming the filming of stuff like this, but it's sadly just too much work to set everything up. Looking at the timestamps for my raw video for this 12-minute review, filming it took over 3 hours - and that's 3 hours of basically working a job, where keeping an eye on the chat and making an effort to be socially acceptable would just make everything take even longer.

[@DougHNuts-ee3vn]

I love mine! It fills my car with bass! I have hooked to a home subwoofer and 2 speakers cut into the home sub cabinet and plugged into my car cig lighter. It rocks my car!!!

[@topali6657]

Sir how to connect it with car

[@topali6657]

Plz tell me

[@gorgi991]

first destruction video i actually enjoyed i would even wanna get this shit for free *desctruction intensifies

[@TDGalea]

Amazing, I bought this exact amplifier from Amazon not long ago. I get a bit of a high-pitched squeal out of the speakers but I'm unsure if that's the amp or the PSU I'm using. I personally think it sounds pretty good. I also have a Lepai two-channel amp that I bought this to replace (although the Lepai now has a new purpose).

[@FFcossag]

+Thomas Galea (UKZz HELLRAISER) As long as it's not built out of broken parts, the LP-838 could work just fine in theory. It's just built around a couple of REALLY shitty and weak ICs when it does.

[@TDGalea]

+FFcossag Guess it varies on the vendor, because Lepai have an exact clone of this amp too. Although Lvpin is the only one with any reviews, all claiming it to be good. Lepai, other vendors, no reviews. Natural instinct is to go with the one others have used.

[@anthonyduran30]

this amp is pretty good acutely i have that lil amp powering my surround sound and a woofer and it sounds dam good and gets loud as hell no bs had this set up for about a year now still running strong

[@FFcossag]

lol ok

[@RWL2012]

how can a stereo amplifier power surround sound...?

[@MrBrymstond]

You could use that casing for a real project...

[@dkookenizer988]

I have one because the sound on my Sceptre T.V. Is crap. I have a Lvpin 838 pushing a Bose sub and a pair of jewel cubes..For the money they sound incredible. Not audiophile standards but good enough for this 70 Yr. old. Plenty of bass and all the volume a sane person needs. I have it at the lowest bass setting and mid range on the other 2. I have a wall switched outlet so it goes off when the T.V. does so maybe it will last longer. It's a few years old and I'm totally satisfied with it. The newer model has a remote so I'll be getting it if and when it goes out.Figures it's more expensive though.

[@SinaShahsana]

dud you do great job in analyzing amps. do more of these, i love the part you dump all of your frustration on that poor board and blow every single ic and capasitor on it.

[@bob4analog]

Yes, perfect exam of this amp! Great job!

[@FFcossag]

Thanks, I'm glad you see the value in its destruction - many don't.

[@Solar_Max]

The screws should go into the heat sink to use the aluminum case as a heat sink.

[@dani777dani]

at least you have a nice alu box :D

[@FFcossag]

It's spoiled by the burning of the amplifier, though; it smells like shit.

[@johnhenley5140]

For 10 minutes, your research is really very interesting and serious; but then it becomes childish.

[@FFcossag]

There's no reason to be serious about a product that is a joke.

[@gabrielh.50]

i have one and i play a pair of 3 way speaker whith 80w rms each and this thing is a beast.i am not a eletronic specialist and this amp is a BEAST (sorry for my bad english)

[@ChipGuy]

Nice video. The datecode on the Toshiba chip is week 14/1996 and the Philips IC is from Week 18/2000. WTF!

[@FFcossag]

+Chip Guy Vids Ha - I didn't even notice that! Good catch.

[@ChipGuy]

+FFcossag You are in Finland. Hydraulic press channel is in Finland. There are still remains...they could use some "We have to deal with it".. just sayin ;)

[@FFcossag]

Chip Guy Vids That's a novel idea, but I'm pretty sure they've already got all the stuff they need for crushing, given that people are literally giving them diamonds to "teel vit".

[@ChipGuy]

+FFcossag OK, good point :)

[@uxwbill]

Ouch! An swinging analog needle might have been a more entertaining way to show the DC offset issue. I guess they're trying to play on Lepai's much better name?

[@FFcossag]

+uxwbill I'm pretty sure I've actually seen this sold as a Lepai at some stage, but that was a while ago. It also does share the same exact knobs as the Lepai, so they probably share some roots. As for a swingin' analogue needle, I sadly don't have any analogue multimeter at hand which has a coarse enough scale to work well on video .

[@aydinhanay2796]

Was bout to switch over then u start experimenting so I watched loll. Cracked me up cheers mate. I just got the same amp given to me in a box. Wondering if I should just open it and salvage electric components?

[@sivalley]

You forgot to pour some "lemonade" and/or drop a dog or cat "loaf" on it at the end. **is soooooo mature**

[@Mikeywil0003]

The only "budget" mini amp I ever thought was any good was the Lepai LP-2020A, but only in modified form. I think the Chinese are trying to capitalize off the popularity of the Lepai LP-2020A. Lepai even has a version of this amp, and they have other models that are junk as well.

[@MarkGarth]

There goes the magic smoke :-)

[@FFcossag]

+Mark Garth The magic smoke dissolved into magic water, and while magic water might sound intriguing, I strongly urge you NOT to drink it. ;)

[@videocreation5206]

Personally think your wrong ,its actually a good amp ,have one myself and does not have a constant 2v output to speaker when idle ,i agree its not a powerful amp but for most general use its pretty good with 2.1 speaker s connected with plenty of bass .can only think you have a bad one. For the price its a good amp ,purchased one from amazon without any issues at all.

[@KulaGGin]

Hey, nice video, man. I am currently looking for amplifier for these speakers(headphones): Frequency response: 20~20.000Hz Max. SPL at 1kHz: 115±3dB Max. input power: 50 mW Drive diameter: 40mm Driver unit material: Neodymium magnet Impedance: 32Ω What amplifiers would you suggest(under $20) for my headphones? I am also thinking of buying lepy lp-838 or lepai lp-838. Which one should I buy if we choose out of these two?

[@FFcossag]

Those won't power headphones. In the VAST majority of cases, headphone amplifiers are entirely pointless.

[@KulaGGin]

FFcossag I understand that in most cases amplifier is not needed. But in my case amp is needed. I have this little project of mine: forums.anandtech.com/threads/need-help-choosing-amplifier-for-6-0-sound-system.2485904/ I've got Roccat Kave: hothardware.com/articleimages/Item1981/small_roccat_kave_remote.jpg img.clubic.com/04032756-photo-roccat-kave-hp.jpg Here's the link to the official page: www.roccat.org/en-UA/Products/Gaming-Sound/Kave-Series/Kave-XTD-5-1-Analog/ Originally Kave's got built-in amplifier powering from USB. I am using my Kave without amplifier at the moment. And sound is pretty weak. So I do actually need amplifier in my case. Can you suggest some stereo amplifier for my headset, please?

[@FFcossag]

I don't dabble in headphones, but you certainly do not want to buy something made to power speakers. Due to the way most cheap speaker amplifiers are built, they wouldn't even work for powering headphones, since headphones use a common ground for both channels. Get a cheap headphone amplifier.

[@chakra1373]

No second hand parts in mine had some good HiFI Leek KEF Ravensbourne etc this IS NOT a bad amp for the money!

[@ryantoomey611]

2 volts DC shouldn't break speakers unless they are really low wattage. With 4 ohm speakers that is only 1 watt of power. You'll just hear a "pop" whenever you turn the amp on.

[@FFcossag]

1 W with no cone movement to cool the coil is quite a lot to dissipate for even a reasonably large speaker. Nevertheless, DC offsets above the millivolt level are unacceptable from a performance standpoint.

[@tronixfix]

10$ for the case 2$ for the amplifier inside

[@tronixfix]

Divide this by 3 and you got the production price

[@beatsmyheart4539]

Can you repair the LVpin amplifier and output its output from 50 to 10/15 watts?

[@pokemondigimon8193]

i never had a problem with this device... i just used the correct adapter 12v with 2amps..

[@M0D60]

Does this amp include Mosfet circuitry?? When I go on eBay and search for Mosfet amps (sometimes) this amp Lepy lp-838 is shown??

[@lemaro1977]

I was thinking in buying one, but after your review, i will look some other product :) thanks

[@richms]

Wow, Mine was terrible too, 5v offset on the sub out with no load on it,., case got up to about 80 degrees pulling 4 amps and putting loads of that thru the sub out. I had 2 18" subs on that in series so 8 ohms, no worries of overheating those. I foolishly bought it assuming it was a class T one and paid considerably more than you paid for yours.

[@StopherB]

I dont get this, i've had this for years and my 1000W subwoofer seems to be banging to this day =P i only turn it up a quarter of the way too, or it gets too loud if my computer is at more than 50% volume. I bought a LEPY with bluetooth and it was not working at all and seemed like a cheap knockoff of the real product?

[@StopherB]

kzbin.info/www/bejne/kJrPfmCiiad7nMU - this is mine from a couple of years ago.

[@HardDiskLover]

Oh man these things XD there is an even smaller and cheaper version, which I got. The only reason why I bought it is for my HDD speaker. That's the only thing these cheap amps are really good for. I also had a peak inside it and it looks even worse. It also had a hole in the main capacitor.

[@und4287]

Nonexistant quality control...

[@zoranvalentak2902]

Hi, i'm not an audiophile and I bought this amplifier to use it with my sony ss h771 6 Ohm speakers which i hooked up using the amp to my PC. Amp was cheap, less than 10$ and I thought it would be good enough for what I needed it. It works for the most part, but there is a white noise kind of sound coming out of them at all volume levels which is very annoying. It's different from the noise you hear as the volume is increased. Do you think better quality amplifiers that you mentioned will still have this problem?

[@FFcossag]

These cheap Chinese amps can have all kinds of different issues, but I'd say that the VAST majority of them are better than this in every way. I personally like the Breeze Audio TPA3116.

[@zoranvalentak2902]

Thanks for the reply, I think that I'm too close to the speakers. I'm sitting around 1m from them. Amp is good if you are using it from across the room, for example. Dedicated PC speakers are usually completely quite regardless of volume and I thought this would be the same. Will try playing around a bit, with smaller speakers that I have lying around, and try buying a better amplifier in the future... cheers.

[@dkookenizer988]

Mine don't do that, no hissing ,clipping or anything other than clean crisp sound. It does clip when it's turned on or off though. You can hear it through the sub.

[@ercost60]

NIce destruction, but you could at least have shown it working.

[@FFcossag]

It didn't work from the factory, lol.

[@ayo4646]

whats with yours mine can power a 150w subwoofer and shake the whole house, whilst giving power to 2 200w midrange speaker units with no noticeable distortion in the audio.

[@reregeanid7196]

ic lvpin is mine using TA 7270 and tda 7057 for 2 months of use is already broken

[@IntelCoreI77700K]

I have an lp2020a+ and love it! I have it powering a sub and two small speakers, ima buy another one.

[@FFcossag]

Just don't buy an LP-838 ;)

[@IntelCoreI77700K]

FFcossag haha don't worry

[@yousufali4227]

@@FFcossag please suggest me which is the best

[@lowtierhuman69]

I quite appreciate you giving that piece of shit what for. hahahaha. Destruction is most excellent.

[@08krizkruz]

Nice Video, First time I watch someone's video showing his frustation in camera...

[@FrogFromFog]

its good amp for price, I was powering car subwoofer with it, cant believe you said it has 5watts, it was to loud for me in my small car

[@petermortensen8332]

Just wasted 12 minutes of my life :-)

[@FFcossag]

I do believe that is what this website was made for.

[@HDXFH]

had 1 of these the old Lepai version, only had the 1 Chip Amp IC!

[@ryantoomey611]

Couldn't you put a capacitor in series with the speaker output to remove the DC voltage?

[@FFcossag]

No, because the issue is that the chip is broken.

[@alsternerd]

Better get a PAM8610, it's cheaper and a real Class D Amp.

[@leongailberger7676]

alsternerd these cheap pam8610 board don‘t have an coils on the output and thats prety bad for a cöass d amplifier, because it‘s going to grill gweeters without that

[@frac]

Now send it back for your warranty replacement...

[@venkateshshiga]

Nice experiment well researched 😂

[@taodamata9869]

If you don't like it, why do it? Bad idea

[@dhastk]

What do you expect from an 11USSD amplifier ??? These oscilloscope tests do not interest me because I will not be looking at this pointer and hearing the sound in the boxes .. 😎

[@Nissik941]

will any 12v dc wall plug work on this?

[@DasMrOSi]

Is there a small, class d, 2.1 amplifier you would recommend?

[@FFcossag]

+Das OSi The Breeze Audio variants out there seem to be the best ones at the moment that I'm aware of - but I'm far from omniscient.

[@hene193]

I like that sticker on that HP!

[@und4287]

CALIBRATED SNAKE OIL DETECTOR

[@exiledinthepathofexile]

Hello bro, i Was so into that Lp838 cuz its so cheap but your video show me the truth LOL I bought a Nobsound 2.1 ns14g pro and i really impressed but im not convinced!!!! i Would apreciate so much if u could do such a great review like this on that Nobsound NS-14G PRO PLS PLS i would be so glad xD

[@FuskyTheHusky81]

hey go onto aliexpress and order the cheapest amp you can find they have probably down to 2$ amps.

[@kevinlivingston9563]

Sooo... stay under 48volts. Got it

[@SianaGearz]

Did you ever get the stink from exploding all those capacitors out of your room?

[@FFcossag]

Some sacrifices have to be made in this life.

[@xsoncheng3970]

My lvpin run so good on my aiwa speaker til my friend asked me how much i bought.

[@SCHRUBBE1966]

who cares if its really good. buy some old speakers at a charity shop and lets go

[@zx8401ztv]

It gives crap amplifiers a bad name :)

[@jesusch3000]

Is the LP-268 any better? It claims to be 100w+100w

[@FFcossag]

I have not tested that one.

[@FaithwalkerTodd]

Awesome!

[@dirtydon8661]

RIP lvpin

[@SinaShahsana]

do you know any small amp that can produce real 100w out there?

[@FFcossag]

No.

[@MrAlekoy]

I am guessing the smell it made was the best thing about it..

[@FFcossag]

+Aleksander Øyen I ran the cooling fan out of a 2 kW FM transmitter for a few hours after I filmed this. The room still reeks.

[@MrAlekoy]

eww

[@naturemacro]

Dude! All tht testing and no sound test?

[@FFcossag]

I don't need to hear trash to know it's trash.

[@chrisellingson123]

Is it missing decoupling capacitors?

[@FFcossag]

+Chris Ellingson It's probably missing all kinds of stuff. Why do you ask about decoupling caps in particular? If you're thinking about output caps to kill DC offset, it's not supposed to need them since both amplifier chips are BTL.

[@kose2ik]

Never ever trust what written (drawn) on product. I get this product whith chips (alldatasheet.com can watch wath chip can do): TDA7057AQ (2×8 W) and LA4445 (1x15W) (I think this LA4445 was reused seconhand chip). [TDA7057AQ] 2×8 W stereo (40dB) (input 12v, output 8ohm 2x5.3W; input 12v, output 16ohm 2x3.5W; input 15v, output 8ohm 2x8W) ; [LA4445] (subwoofer amplifier chip) Maximum 1x15W, normal 1x11W (46dB) (2x5.5W(4ohm) 13.2v(10v-16v)) (without 2x 1000uF output capacitor)

[@kose2ik]

+kose2ik My taked pictures goo.gl/photos/g3mnomZ8R9Win3Eb9 and description plus.google.com/113040175642762602810/posts/KvZJW64ZQHB

[@kingfly6858]

It is literally garbage. I tried testing it on my small speaker and it blew it up. Than tried it on my big bass speakers and turned it up, nearly blew them. This Amp is an absolute piece of garbage

[@aguila413]

Bass mine is not working

[@Paaaull]

Suomi mainittu! Torilla tavataan.. Ei ois uskonu suomalaiseks, tilattu! :)

[@metalrott324]

Can you do a video if Upgrading one with new Internals? 😂

[@CSO3DOnline]

cheap amplifiers are they any good? short answer:not really

[@Paaaull]

Nobsound Mini is good cheap amplifier(for the price ofc). Z Reviews reviewed it. If FFcossag would buy it too and do all the measurements that would be cool.

[@FFcossag]

At least one Nobosound Mini variety seems to be the same as the Breeze audio amplifier that I've tested on this channel.

[@Paaaull]

That's the first video i watched from you! :) But the Nobsound mini/micro has different chip (TPA3110). What if i buy that someday and send it to you for testing?

[@FFcossag]

***** Hm, one of the ones I saw (There seems to be a few different ones) has the same PCB as the Breeze - it seems very far-fetched that that paticular one would be anything but identical. The other varieties, however, are certainly going to be different. If you want to send me one, I'll definitely check it out. Send me a message or e-mail if you want to know where to send it.

[@lcrowI]

山寨卡屁 eh

[@tyttuut]

It seems like Chinese sellers are just tossing a few random letters on their cheap junk. I can just mash keys and get a cheap Chinese seller name: isbwi bwbid lownd kwnjd

[@geppetto8013]

asliii niihh amp kereeenn 🎧👍👍👍👍👍

[@puarisha2503]

Nice ending though.

[@dj5quar3]

Great Video! Great channel! +1 Sub

[@FFcossag]

Glad to hear it, I hope you'll enjoy my stuff in the future.

[@Alexelectricalengineering]

Thumbs up :)

[@eduard9449]

I don't understand English very good, so, my question is, it's real 20w*2 and 40w bass????

[@FFcossag]

No, it's shit.

[@eduard9449]

FFcossag can you recommend me one amplifier at 12v?

[@eduard9449]

now I have www.ebay.es/itm/162159609415 but I want more W

[@FFcossag]

Eddy Macovei Breeze Audio TPA3116

[@eduard9449]

FFcossag thank you very much!!!! You know if I can use a car battery, I've seen it gives 24v and 5amp

[@gotj]

Is it hi-fi then ?

[@tronixfix]

11:39 was that a laser gun?!

[@nacabaro3737]

Hewlett packard calibrated snake oil detector

[@-abacchus]

Can you name an amplifier that is "around $8 more" that is much better..?

[@FFcossag]

Any of the $20 china amps. Literally.

[@thetityclub]

I believe it I got this thing for free 😂😂😂😂