I like the effort put into making the graphics in the video very explanatory.
@ashrafabro118
4 жыл бұрын
I just completed making this amplifier and I am quite shocked by its performance. Being so cheap it delivers a relatively high-quality sound.
@amitghosh6966
Жыл бұрын
Can we use 32 ohms headphones with this circuit?
@a00000z100
11 жыл бұрын
I'm addicted to watch these sorts of videos .. Keep going
@kuttalu
6 жыл бұрын
a00000z100 me too
@junits15
10 жыл бұрын
Why wouldnt you use a dual wiper pot? So that way you can control both channels with one knob and know they both have exactly the same settings. I guess its because "it's not available at Radioshack"
@WasAC
10 жыл бұрын
I tought the same hahaha
@ImHibby
11 жыл бұрын
If you cross your eyes at the two halves of the pcb in the first segment, it creates a stereo photo. That's some tight component placement.
@craftiebrown
11 жыл бұрын
Wow...a project without the overkill of an Arduino! I can actually give this video a like!
@isaacblackburn4892
10 жыл бұрын
the reason why he uses two pots instead of one dual pot is that one pot controls the high frequencies and the other controls the low frequencies. this makes a sort of basic equalizer allowing for the bass boost/reduction. a dual pot would take away this function, reducing this setup to an overly complex amp. hope this helps.
@Rouverius
11 жыл бұрын
Side note: great build instruction graphics. Really helped the narrative. Nice work.
@oj43085
11 жыл бұрын
You guys at MAKE sure are talented.
@4boyscouts
4 жыл бұрын
As far as I can tell that won't split into a high and low frequency branch, just a high frequency branch, and a branch with all frequencies. To filter high frequency (obtain low frequency) you would generally use an inductor, in the same way the capacitor was used to filter low frequency.
@4boyscouts
4 жыл бұрын
I am wrong, the low frequency branch is being created by grounding high frequencies through the bottom .22uF capacitor. Quite clever.
@arindambala6079
2 жыл бұрын
Thank you so much for this great video... I just build one same for myself.. with 5 volt and 9 volt dual voltage control... for low and high impedance headphones... It is just awesome...It is a classic product.. LM368 is not the best one but it is great for its simplicity... It has a 3 stage class AB amplifier with Lin Topology... 1) It has a simple differential input stage with emitter followers 2) a voltage amplification stage 3) and a output class AB stage with a compound PNP Transistor... 4) Internal feedback and gain control is awesome 5) Fixed Gain of 20 (great for headphones) Last but not the least : The Zobel Network at output and the BIG MUFF PI TONE control system at the input makes it classic. But I have one question please help me.. Which impedance headphones are best for this little classic piece... because 4.5 volt amplitude is not good(I am also use a 2.5 volt setting ) for 32 Ohm impedance... Voice coils will be getting heated due to large current flow... and for long use may be the cone will start damaging... 2.5 volt is also high for some low impedance headphones... Please suggest me...
@SomeAndrian
11 жыл бұрын
I'd control it digitally way before the signal goes into the amp. It could be an over kill, but that's the only solution I've done; I'm only a hobbyist when it comes to electronics but I've done my share with digital circuits; I'm a programmer by trade. I recently purchased a sounds system for my PC and the sub-woofer had potentiometers as additional controls. The amount of noise was unbearable; once I took them out I've never had noise. The reason I knew to take them out was from experience.
@fedeelias
10 жыл бұрын
You could use a 10K stereo pot, and dc power input jack with switch for external dc power or internal battery
@bonnjoemaroleocabrera1397
9 жыл бұрын
nice project :) you can use a dual gang pot for that circuit , it does make sense , and so you can change their volume in sync :D
@MrGosho5
7 жыл бұрын
Thank you guys for this project i made it and its so awesome. Soon i`ll post it on my channel.
@mrasrrcom111
11 жыл бұрын
My local radio shacks don't have most anything for these projects. the bins for parts are mostly empty and not organized
@HeartOfGermany
11 жыл бұрын
Some music has more bass on one side, so to change them independly is pretty good.
@greggismyname
8 жыл бұрын
The LM386 was never meant to be a headphone amp. It's a really low quality "amp" that can pump low quality audio into a low quality low power (350 mw) speaker, like in the old cheap transistor radios. Build it if you like but only if your're not serious about headphone sound.
@squat224
11 жыл бұрын
Seems like that should work just fine. you just don't have control of both channels, though in this application I can't see a reason you would need to. Unless you only plugged in one speaker at some point, then you could just turn down one channel.
@Struikbeheerder
10 жыл бұрын
Does anyone even bother to get all the tools and all the components needed to build these things?
@SuperZorark
3 жыл бұрын
i do because i have them available
@BabyHoldingGun
11 жыл бұрын
Nice editing it helped for most of the parts
@darkbiss
11 жыл бұрын
What about the usage of other batteries? Also I'd like to see a video for the mint tin being used as a solar charger for multiple devices. Thank you.
@RandyRandersonthefamous
11 жыл бұрын
Dude, those are some MDR-7506 (pretty much the same as the MDR-V6s. They have a near flat response, and actually curve UP at sub bass
@VitekSTZero
10 жыл бұрын
Super project! What's the music used in this video?
@colenave
11 жыл бұрын
Lol, I like how he's adding bass boost to one of the best pairs of headphones out there (Sony MDR-7506's) that do a decent job anyway :P
@p5y4n1d3
10 жыл бұрын
Anyone who's tried using good quality studio headphones on low power devices like cell phones and MP3 players know that a headphone amp is necessary, it doesn't matter how good your speakers are if you have no power to drive them properly.
@colenave
10 жыл бұрын
Agreed :-) I just think it's funny that he's adding bass to a pair that already do a splendid job of representing the lows (shrugs).
@nextstorming3908
9 жыл бұрын
+Garrett Mehre beats are shit (headphones)
@zezeA380
9 жыл бұрын
So, that's how the sub woofer circuit works, pretty cool
@tarstarkusz
9 жыл бұрын
No. A sub woofer with line inputs would have a much better designed amplifier and usually the filtering is done in the stereo so that you are only getting the low frequencies out of the sub output.
@zezeA380
9 жыл бұрын
Oh
@muffenme
9 жыл бұрын
I would it a little differently like more jacks instead wires coming out of your project. 6 5/4 AAA battery that give about 900 mAh.
@FelixTheHouseFreak
11 жыл бұрын
But it isnt for adjusting high and low frequencies its for adjusting the tone per channel which could work way better with a dual gang pot.
@CalebMcGrath
11 жыл бұрын
Why not use a double gang potentiometer, allowing both channels to be adjusted at the same rate and time?
@1225Forrest
10 жыл бұрын
I wonder if this could be used in the Monobox speaker, just to control the bass?
@kiranrana8601
10 жыл бұрын
What's the point of printing a specific type of PCB when you are going to run the wires around like that? you could have used a normal type of circuit board, right?
@tobiasolsen3148
4 жыл бұрын
Hey, can you post a complete list of the components and their specifications ?
@Krearc
8 жыл бұрын
Where are you from that there is still a Radio-Shack (r) to go to??? (even in 2013?)
@RuneDamsgaardRasmussen-1995
8 жыл бұрын
+Krearc Wondering the same thing...
@spokehedz
11 жыл бұрын
Dirty or cheap pots can have a bit of static on them, that is true, but good quality ones won't have those issues. And when they do, you can easily replace them later on down the line. I will bet if you bought quality pots online and replaced the ones in your subwoofer it would be fine. But I digress. Yes, a digital potentiometer is a solution, but they are quite a bit more expensive and require a microcontroller and... Just expensive and not a proper solution to the issue of noise.
@roxes787b
9 жыл бұрын
Wouldn't it be better to use a stereo pot indstead because i don't know why you would want to adjust bass individually for each channel :)
@evahle
9 жыл бұрын
Nice job! Thank you.
@iceberg789
8 жыл бұрын
why everyone just makes lm386, it doesn't even sound good.
@iceberg789
8 жыл бұрын
TDA2822 does work at 5V, also does PAM8403
@iceberg789
8 жыл бұрын
put a simple preamp stage before it, put a pair of 8 ohm speaker after it, and you may like the power. tda2822 non "m" version has some more power too.
@bubblelaber4909
8 жыл бұрын
yeah its a grandpa audio IC
@sarcasmidiot485
8 жыл бұрын
+iceberg789 i want build heaphone amp with schematic from this video. you said that lm386 doesn't sound good, so what opamp that sound good for that schematic? thank you.
@meg412
7 жыл бұрын
tda2822m works at 2v
@spokehedz
11 жыл бұрын
Okay, how are you supposed to control the project then? What is your solution to the problem of noisy pots?
@23brandonsch
11 жыл бұрын
it would be nice if they added a led to the circuit and a switch
@nextstorming3908
8 жыл бұрын
The chip he needs is the TDA1519A and a double gang POT
@THEKOSCKOHACKERCHANNEL
8 жыл бұрын
thats too powerfull for headphone use typically a headphone uses 10mW max headphone power could be 500mW and in big 60mm drivers one watt no more
@halfnelson6115
5 жыл бұрын
How bout a project so I can use my headphones on my Samsung TV. Now THAT would be useful.
@derbigpr500
10 жыл бұрын
Or you can just buy a portable DAC/amp for the same money that will offer infinitely more sound quality improvement, and use EQ to get a better bass boost.
@khebnaccountgemaakt
10 жыл бұрын
You obviously don't get the purpose of DIY'ing. It's not about the product, it's about the build.
@DaveK183
9 жыл бұрын
You two obviously don't understand this thing at all. Active, hardware bass boosting sounds ten times better than equalizing it in your computer software.
@redwanhasan1721
9 жыл бұрын
its pretty fun building something and using it, its not about saving money or something.
@Microwave414
9 жыл бұрын
DaveK183 I have a stereo amplifier with a bass boost 'loudness' feature, no. It's not better as it sound exactly the same. If your speakers/headphones don't have enough bass then you bought the wrong headphones/speakers for your personal preference.
@DaveK183
9 жыл бұрын
GregLH0 Umm, maybe its the same because your speakers can't even play those low frequencies.
@DrYopoke
11 жыл бұрын
because then you cant adjust the high frequencies separately to the low frequencies?
@saleemrafiq9024
8 жыл бұрын
Nice work
@kazbuks
10 жыл бұрын
uhm i have a problem with this one, all done, but when music is not playing there is that little annoying noise, any solutions?
@ManuelLanda
11 жыл бұрын
No body wants un-even bass. A double gang potentiometer can also be used to control the over all volume of the output. That way we don't have to use the volume control from the origin.
@mindaugas49ccm
11 жыл бұрын
Why you use 2 separate potentiometers , not one dual (stereo) potentiometer?
@Sloxx701
7 жыл бұрын
Just build the SSMH 12AU7 tube/fet headphone amp if you wanna build something yourself, they sound awesome.
@hristijank2
8 жыл бұрын
this will work with a stereo potenciometer for equal bass on both channels
@mark22732
8 жыл бұрын
+Chris Andonoski yeah, I think the design is just to keep parts simple and easily available from the common hobby stores like RS, but its not ideal and a single pot would not only work but be a lot better for practicality.
@nextstorming3908
9 жыл бұрын
Local radio shack, really because what if your country dosent have RadioShack
@JonThomas92
8 жыл бұрын
+NeXTSTORMING Yeah and with radio shack closing down
@mark22732
8 жыл бұрын
+NeXTSTORMING well what are you suggesting is more universal? He's obviously not going to list an online supplier that's going to cost $20 to ship a single projects worth of parts internationally, nor is he going to list a possible supplier for every country. By the time your building this you should have the intuition to find a store on your own. And its american content, so its nothing but reasonable for them to list a common american supplier.
@spoderman15
8 жыл бұрын
jameco.com?
@TheKetsa
7 жыл бұрын
ALIEXPRESS...
@sghost128
11 жыл бұрын
That's not really how it works. The pots at as voltage dividers for the input signal, the reason you have two is because you have to pass two signals both of which need dividing.
@mariopiacenza1295
9 жыл бұрын
I ACTUALLY FINISHED IT BUT FOR SOME REASON, WHEN I CONNECT EARPHONES WITH A MIC THE AMP DOESNT WORK VERY GOOD , UNLESS YOU PRESS AND HOLD THE PLAY/PAUSE BUTTON ON THE EARPHONES; THE SOUND QUALITY CHANGES IMMEDIATLY. ITS SO WIERD AND I HAVE NO CLUE HOW TO FIX IT!! HELP
@novaorbitdragon
11 жыл бұрын
It's kind of like building the mono box speaker amplifier
@DoctorThe113
6 жыл бұрын
My skull Candy headphones has already built in bass amplifier.
@joe2501echo
11 жыл бұрын
I've never used one of those, but I DID take a capacitor out of a stereo system and touched it to my tongue. It was the size of my fist at the time, and it tasted like blue. It was possibly the 6th dumbest thing I have ever done with electronics.
@amitghosh6966
Жыл бұрын
Can I use 32 ohms headphones with this circuit? Can more than one headphones be used with this circuit say 4 headphones in parallel?
@AllElectronicsGr
10 жыл бұрын
Ridiculous! You need to match the pots, i'm lefting now
@lucasdala
10 жыл бұрын
Olha quem encontro aqui . Faaaallllaa galera do all eletronics !! Curto muito seus vídeos :)
@ElaBellll
10 жыл бұрын
i bet you could wire it so you only need one.
@AllElectronicsGr
10 жыл бұрын
I could. I could also use a dual pot.
@GregKarz
10 жыл бұрын
yes, when I saw it, I was like seriously dude? WTF??
@julianpiper240
6 жыл бұрын
All Electronics use a dual gang pot
@muzraz87
10 жыл бұрын
you can use a dual gang pot instead of 2
@gerryroberts662
Жыл бұрын
I wonder if i could build this amp for my old disk cutter, This has base, i like base,,
@FutureAIDev2015
8 жыл бұрын
Will this boost bass on speakers that normally cannot handle bass?
@iblesbosuok
5 жыл бұрын
Why don't you use LM1877? Cheers from Indonesia
@benitorossi9380
3 жыл бұрын
this amp cannot work with the 100 ohm resistor from input to ground, no preamp can drive a such low input impedence.
@experimentalist1494
8 жыл бұрын
wonderfull project i made it
@ICanHasSmash
9 жыл бұрын
LM386 for a "high quality" headphone amplifier? You've got to be kidding me...
@Brokenrocktail
9 жыл бұрын
NoBudgetTech thats what i was thinking! Haha, single stage op-amp circuit... guess their definition of lo-fi is using a push-pull set of two BJTs hahaha
@ChaoticaExtreme
9 жыл бұрын
Evan Johnson LM386 is an audio amplifier chip. Not an Op-Amp. My suggestion would be a TDA2822, stereo, though still not 'quality'. I would replace the pots with a DPST switch and have boost on/off. Use a DPDT switch for 2 positions and off.
@Brokenrocktail
9 жыл бұрын
ChaoticaExtreme apples to apples. They call it a low voltage audio amp, but functionally it is a high powered, low frequency Op-Amp. It even has the same schematic symbol and differential inputs. Maybe they choose not to call it at op-amp, but I consider it to he one. If it quacks like a duck...
@ChaoticaExtreme
9 жыл бұрын
Evan Johnson So if I buy say, a PA amplifier with balanced inputs, I've actually bought a discrete op-amp....
@ICanHasSmash
9 жыл бұрын
Technically, yes. Let's remember here that op-amp is basically any amplifier with differential inputs, op-amp doesn't mean tiny. A balanced input power amp is indeed a huge op-amp. Just like power amp chips like the TDA2030, LM1875, LM3886, etc... are just high power op-amps. And yes, they have the same schematic symbol often. Technically, every amplifier that has a feedback loop is an op-amp. The LM386 is a high power op-amp with fixed gain, it basically has the feedback loop built in.
@ekasatriabahari2264
Жыл бұрын
why don't just use dual gang potentiometer?
@RavsAjay
10 жыл бұрын
its awesome man
@dahorn100011
11 жыл бұрын
or solder both channels to the same poteniometer? (or will that mess things up?)
@R.Rumian
10 жыл бұрын
It may be better to use a potentiometer 2X10K?
@patrickiman3394
11 жыл бұрын
Great video!!! But....if you have android,just use viper and some decent headphones;)
@roboticdroidrobotic5942
6 жыл бұрын
Nice work"
@bappa6912
7 жыл бұрын
nice bass
@Omi142
6 жыл бұрын
bappa bera chutiya
@MakoEve
11 жыл бұрын
Does this also bass cut in addition to bass boosting?
@roboticmind23
11 жыл бұрын
BUT WAIT... where does the arduino go?? im so lost without it...
@TheodorFritz
10 жыл бұрын
That motion track at the start! OMFG HAHAHAHA
@nextstorming3908
9 жыл бұрын
Oh wow
@tubaman76
10 жыл бұрын
Is there a way to use One pot to change the bass instead of having to match up two?
@Moleek7CZE
10 жыл бұрын
Yes. Just use stereo pots. It's basically 2 pots with common shaft.
@RavsAjay
7 жыл бұрын
What? if I use one B100k Potentiometer for dual channel, Does it work.
@jinhyeokyang1259
8 жыл бұрын
well..what resistance do i need? 100ohms, 10Kohms?
@000000t
11 жыл бұрын
You're right this project could be done way better
@subramanya.k
Жыл бұрын
Which is this background music ❓
@arvindabharat8862
8 жыл бұрын
Procedure was not clearly described
@thetechfreak90
11 жыл бұрын
Can Colin make a remake?
@spokehedz
11 жыл бұрын
What is your reasoning behind this?
@laurentamurat1676
7 жыл бұрын
If I use a 6watt speaker will it be loud?
@nellpastelin3661
8 жыл бұрын
esta muy chido me gusto
@DonAndresz
10 жыл бұрын
how long you been working on this video?
@keithdalton3004
10 жыл бұрын
Cool dude
@ojkolsrud1
10 жыл бұрын
So, I'm gonna build this, but I'd like to build it using a stereo pot. I'm not sure what I'm looking for, as most schematics say "stereo" or "dual" etc, not mentioning other technical data. I've done a search on my electronics supplier page for "potentiometer" - could someone with knowledge please find me a couple of alternatives which fulfils the stereo requirement? www.elfa.se/elfa3~eu_en/elfa/init.do?cat=0&sq=potentiometer&sel=2&solrRows=10
@ThePurplePupUwU
8 жыл бұрын
I'm just going to make,some of these and add 47 more from Amazon and then I will have the perfect headphones for freaks timmy trumpet
@alainmorales7954
10 жыл бұрын
will it work in a car battery of 12v?
@roxburgrivera2080
7 жыл бұрын
what is the name of the circuit board
@taitaylor86
8 жыл бұрын
it would work out cheaper buying a mid to high range set of headphones. if you need to buy all the tools that is.
@SomeAndrian
11 жыл бұрын
potentiometers always introduce noise
@MyBigThing2010
7 жыл бұрын
local radio shack? what's that? XD
@TheGreenLift
8 жыл бұрын
There is no RadioShack in germany :/ no electronics market nearby:(
@JoshuaNorton
8 жыл бұрын
+TheGreenLift reichelt.de
@hugovanrossum7829
8 жыл бұрын
conrad.de ist gut
@Ezoteriusz
8 жыл бұрын
tme.eu
@Furby_assassin
10 жыл бұрын
Why not just make a cmoy amp?
@tubeDude48
6 жыл бұрын
Radio Shaft is no longer in biz'ness!
@freesoftwareextremist8119
8 жыл бұрын
Or you could just set different equalizer settings...
@teun7923
6 жыл бұрын
yea because base in ur left ear more than ur right is nice.....
@WRCX212
10 жыл бұрын
This looks like a mono amp?
@ZexyZe
10 жыл бұрын
OMG.... They said like 10 times Left and right...
@Tome4kkkk
11 жыл бұрын
Great project! Quick tips: 1. Next time check the music sound quality of the cell phone you're about to buy before actually buying it. Instead of buying s*t and supporting s*tty producs with your money that is. 2. For nutless computer sound - do yourself a favor and buy ASUS Xonar USB sound card. They eat Creative equivalents for breakfast and you'll get to show a finger to Creative and their decade long monopoly they abused :)
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