Summer Project - Make an INSANELY LOUD Bluetooth Amplifier!

  • Опубликовано: 17 авг 2015
  • Here's the amp we'll be using Amazon:
    eBay (ships globally):

    In this video we'll be making a wireless bluetooth-enabled amplifier so that we can put old bookshelf speakers to good use!
    Not only is the sound quality fantastic, but it can also go super loud! It's also quite easy to build, and doesn't require any special tools - you can get away with just a hammer, nail, and a screwdriver if needed. Seriously!

    Full parts list (includes international purchasing links):

    Happy building!
    Oh, by the way, here's the note about the little switches:
    These switches change the gain mode of the amp. If they're both on, the amp can reach insane(er) volume levels. However, to hit these volume levels without distortion, the amp needs 25v, which is more than our batteries can provide. The amp is loud enough with them off, and it also means that the signal to noise ratio is MUCH improved, so I don't really recommend messing with them.
  • Хобби и стильХобби и стиль
  • Длительность: 9:06
  • amplifier  sound  music  loud  bluetooth  wireless  audio  streaming  ipod  bose  beats  system  melhobankof  dekonifenta  diy  make  bass  project  boombox  Do It Yourself (Hobby)  summer  diyperks  record  cd  tunes  orchestra  drums  bookshelf speakers  vinyl  dj  

Комментарии • 3 756

  • DIY Perks
    DIY Perks  Год назад +128

    Now it's even cheaper! $11.88 from here, and it ships from the US:

    • Peter Hindes
      Peter Hindes 4 дня назад

      btw the aluminum sheets are no longer available, would an mdf sheet work

    • remo conan
      remo conan 4 месяца назад

      what can you recommend w ith 4 Ohm 80-120 watt 2 X 1.5 m speakers thanks!!!!!!!! Also could you wire this setup along say your Flatscreen TV!!!!!!!!

    • Rupesh Shrestha
      Rupesh Shrestha 5 месяцев назад +2

      What is the specification (watt, impedance) of the speakers you are using for this video?

    • Jp925
      Jp925 6 месяцев назад

      Coenie Barnard yes it will let you use bigger speakers

  • niknik992
    niknik992 Час назад

    Is there the a way to use this with a power bank powering it? All those batteries seem like a hassle to buy and charge every time?

  • Nikolay Amzin
    Nikolay Amzin 10 часов назад

    It's called amplifier not blaster

  • Peter Hindes
    Peter Hindes 4 дня назад

    what power jack do you need?

  • ibles bosuok
    ibles bosuok 5 дней назад

    Awesome park

  • fredrik 887
    fredrik 887 9 дней назад

    how is the piano background called?

  • Utkarsh Mathur
    Utkarsh Mathur 14 дней назад

    Can i connect this directly to the socket instead of using batteries.
    If yes then what all precautions should i take?

    • Awais Ali
      Awais Ali 8 дней назад

      you will need a 12V adapter

  • Julian Anthony
    Julian Anthony 15 дней назад

    Hey do you know how I can add an equalizer on to this?

  • Murilo Zontur
    Murilo Zontur 18 дней назад

    Adding some heatsing with thermal conductive tape in the main amplifier chip could improve it's durability, right?

  • D- Gadgets
    D- Gadgets 18 дней назад

    Hello. Can you help me? I want to know how to fix the loud poping noise when i turn on the switch!? Its making the speakers pop really loud when i turn it on..... Please help

  • Andrew Lofthouse
    Andrew Lofthouse 20 дней назад

    why didn't you use a power brick, like a Navpower.???

  • Andrew Lofthouse
    Andrew Lofthouse 20 дней назад +1

    how long did the batteries last??????

  • saad 208
    saad 208 21 день назад


  • Ali Waqas
    Ali Waqas 25 дней назад

    Wasted your whole video on that fuc*ed up Music

  • Lev SC92
    Lev SC92 27 дней назад

    Can you also connect it to the car battery since it's 12v D.C.

  • Vedant Ghadi
    Vedant Ghadi 29 дней назад

    Oh thanks, but I will prefer DC adapter instead of batteries, as they will make my amp smaller..... and more powerful on 25 V!!

  • RighteousBruce
    RighteousBruce Месяц назад

    How would one make like... 6 bookshelf speakers powered by mains but as one input to my PC via bluetooth or 3.5mm?

  • skyblou 87
    skyblou 87 Месяц назад

    Work 2x9v ?

  • Mohammad Ali
    Mohammad Ali Месяц назад

    Super amazing video

  • Miguel Pagan Sr
    Miguel Pagan Sr Месяц назад

    You’ve inspired me to build something, I’m thinking of making a cooler radio build. I have the amp with its own 24 volt power supply and I’d like to add Bluetooth to it but the Bluetooth only runs on 12 volts, any ideas? Thanks

  • Dragos Cutian
    Dragos Cutian Месяц назад

    This guy looks like Jerry from Rick and Morty which is weird because Jerry is a retard.

  • Truth Seeker
    Truth Seeker Месяц назад

    : ) !!

  • Ronald Lobo
    Ronald Lobo Месяц назад

    I would like to know how much voltage battery u have used to do this.

  • Ronald Lobo
    Ronald Lobo Месяц назад

    I have brought the same chip but the sound on that chip is getting cut on bloototh and audio jack is not giving sound so what u think is there issue with chipset or I am going wrong.

  • Paul Leishman
    Paul Leishman 2 месяца назад

    RIP neighbors

  • Ahmad Idul Fatri
    Ahmad Idul Fatri 2 месяца назад

    Song is hooky with sloane audio library

  • Alex L
    Alex L 2 месяца назад

    18650's with a balance board would have made things smaller (due to higher voltage per battery), higher runtime, and the ability to be charged properly

  • anto leyo
    anto leyo 2 месяца назад

    Wonderful garden! I want to eat em all nyum-nyum-nyum

  • 3.467328168890698e+23
    3.467328168890698e+23 2 месяца назад

    I want to connect my computer to the speaker, but it can't find the bluetooth driver, is there a way I can create one or a site where I can download it?

  • Rafael Almeida
    Rafael Almeida 2 месяца назад

    Why did he used a battery instead of plugin in to the wall outlet ?

  • Plester
    Plester 2 месяца назад +5

    All the other kids with their pumped up kicks better run better run...

  • Mogalize
    Mogalize 2 месяца назад

    How long do the batteries last? Any chance of getting 10-12 hours from a battery pack?

  • Taco J
    Taco J 2 месяца назад

    i need an amp that can take 7 speakers that includes 5 high-mid speakers 1 bass speaker and 1 high speaker

  • luke leunes
    luke leunes 2 месяца назад

    I just bought 2 :)

  • Savage Tech
    Savage Tech 2 месяца назад +1

    Can i use an 11.1v lipo battery?

  • Levi Jones
    Levi Jones 2 месяца назад

    ok this is damn cool, considering the size of the batteries is there any system involved to let you know the battery level? Could you add something on like an LED to read out said level?
    Also could I bypass the volume buttons and replace them with a potentiometer?

  • I Make Things
    I Make Things 2 месяца назад

    You are the greatest

  • QUIT.
    QUIT. 2 месяца назад

    When I adjust the volume on my phone the amplifier beeps, is it the same with yours?

  • Mike Anaya
    Mike Anaya 2 месяца назад

    Looks like it has some defects, I tried to purchase this yesterday and Amazon send me this:
    Sorry to bother you. We are just told by the supplier that this kind of items has some defects and need to be returned to factory to test again. We are not sure when this process could be done. To protect your benefits and save your time, we would like to refund you first. Do you agree? Sorry for the inconvenience.

  • Jyothish P kumar
    Jyothish P kumar 2 месяца назад

    man u have a good garden

    TRAFO COMCHAN 2 месяца назад

    To be clear this is a 25w per channel amplifier so it may seem it's 50w each speaker (which would be a 100w stereo amp) so it's still a good amplifier it's only 25 per channel just to clarify things still good video

  • William Townsend
    William Townsend 3 месяца назад

    So I am wanting to make a Bluetooth speaker using the TDA7492 50 W + 50 W dual BTL class-D amplifier and a some automotive 2 way speakers. I also have 7 samsung icr18650-30a batteries that are 3.7v in series that's 25.9v and 19,000mah. So my question is what wall power adapter should I use to power and recharge the system? Also what would be the rough battery run time?

  • Kerry Kennedy
    Kerry Kennedy 3 месяца назад

    Could I use this amp on a raspberry pi?

  • Timon Martin
    Timon Martin 3 месяца назад

    Why didn't you do this project with a rechargeable battery, so it can be charged without removing batteries?

  • Woody
    Woody 3 месяца назад

    I built this to work with high end Sharp speakers with low impedance. I will admit this amplifier can drive just about any set of speakers I own (a wide variety of different watt and impedance levels). But in order to drive the 3 other gain switches, let alone the default max volume, you need a much more reliable and constant power source. I wanted to do this project for sake of affordability, utility, and customization; but alas, I may have to spend quite a bit more money on a better battery system in order to use this to its fullest potential. It was never intended to run off of battery power. Cheapo dollar store AAs will definitely not cut it for this project the result of using such will cause the batteries to actually overheat and eventually swell and release an excess of battery acid everywhere. I'm not claiming that this video is falsely representing the capabilities of this amplifier, but you definitely need to pick an extremely reliable power source that can maintain higher voltages up to 24v and a longer lasting more consistent mAh rating. My battery setup contained a chain of 16 1.5v AA batteries in a 4x4 grid (using two 2x4 housing units).

  • Ante Odak
    Ante Odak 3 месяца назад

    Is there a possibility to connect the amp to the city grid cause i dont really get the whole battery pack thing

  • Ante Odak
    Ante Odak 3 месяца назад

    Whats the input voltage neccessary for the chip?

  • G.P. Grobler
    G.P. Grobler 3 месяца назад

    I have the TDA7492P amp and I know how loud this amp gets with 12v 3a or more, so I have no doubt on how low it gets :) :) :)

  • Gian Carlo
    Gian Carlo 3 месяца назад

    Do the speakers run solely off the 10 batteries or do they require an AC power source?

    • Gian Carlo
      Gian Carlo 3 месяца назад

      DIY Perks , please reply

  • Piotrek Krolikowski
    Piotrek Krolikowski 3 месяца назад

    congrats on 1 million subs

  • Daniel absi
    Daniel absi 3 месяца назад

    congratulation for your 1M sub.

  • Selena Hiko
    Selena Hiko 3 месяца назад

    would you be ale to send me one down to new zealand

  • Subhadip Ghorui
    Subhadip Ghorui 3 месяца назад

    Can i use a step up Volta regulater 5v to i can play with my power bank

  • Max Timmins
    Max Timmins 3 месяца назад

    how would you wire only one speaker because i can only find 50 watt speakers

  • Tom Brown
    Tom Brown 3 месяца назад

    Great project but how can I get this to work on a wireless Bluetooth speaker? Could I use a USB cable to connect the speaker to the amplifier? Or USB to power cable?

  • Bryan Agapito
    Bryan Agapito 3 месяца назад

    You look like “EverythingApplePro” lmaooo great video !!!

  • pankaj purbhoo
    pankaj purbhoo 3 месяца назад


  • pankaj purbhoo
    pankaj purbhoo 3 месяца назад


  • Johnny Doe
    Johnny Doe 3 месяца назад

    How do you charge the batteries?

  • NiC
    NiC 3 месяца назад

    Anyone hera sweet home alabama near the start.

  • G.P. Grobler
    G.P. Grobler 3 месяца назад

    Just a tip here to drill less holes and make the "package" look even better: you can use thin double sided tape to attach the battery boxes to the base plate. BTW I am very, very impressed with this amplifier.

  • Angga Furasesa
    Angga Furasesa 3 месяца назад

    how to connect this BT amp to 3 way passive crossover? is it possible? because I only found these over 300watt. thks

  • wchbd
    wchbd 3 месяца назад

    Is there a way to make something similar to this, but NOT with Bluetooth?

  • Zana Mustafas
    Zana Mustafas 3 месяца назад +1

    I like you man👍😉

  • haseeb amin
    haseeb amin 3 месяца назад

    hi.. i have a question. if we add lithium ion battery packs to the same system for example 3400mAh battery pack. what should be the recommended charger for it and how can the charging stop automatically one battery is fully charged.

  • Harshit Jaiswal
    Harshit Jaiswal 3 месяца назад

    hi can you make a video on how to make salt water lamp

  • DrkGamer21
    DrkGamer21 3 месяца назад

    How do you recharge it

  • Hans Zimmer
    Hans Zimmer 3 месяца назад

    I'm a huge fan of your videos and have finally tried a build myself :) But I have 2 questions about the board.
    Is it normal that the speakers pop out after you turn on the power? How can I keep them from doing that?
    And the startup sound is suuuper annoying, as well as the vol up down sounds. Is it possible to disable them?

  • Crafter Beat
    Crafter Beat 3 месяца назад

    What for Speaker does he use?

  • glide360x
    glide360x 3 месяца назад

    the second version can be find at only 7.21$ :))

  • Stonewolf1337
    Stonewolf1337 3 месяца назад

    The speakers worked great for a while but then stopped working when on battery (still working when connected to an AC plug), anyone had that problem?

  • Channel 13 π
    Channel 13 π 4 месяца назад

    Who else is thinking that the guy is a fucking millionaire ?? :D

  • Creative Builds
    Creative Builds 4 месяца назад

    Hoe many wats choud The speakers be

  • BraydenRaleighTech
    BraydenRaleighTech 4 месяца назад

    Check the max continuos power of the speakers and the power of the amp, if the amp wattage is higher then don't turn it all the way up unless you want to break the speaker

  • Piotrek Krolikowski
    Piotrek Krolikowski 4 месяца назад

    what type of plug did he use to plug the batteries onto the amp?

    HISU HAN 4 месяца назад

    This is looks very cool

  • Cederic van Rossum
    Cederic van Rossum 4 месяца назад

    How much voltage do these things take? can it be anywhere from 5v to 35v?
    Nice video as usual!

  • ori sir
    ori sir 4 месяца назад

    You deserve more subs!

  • Mark Godfrey
    Mark Godfrey 4 месяца назад

    If you care about quality look for boards with TPA3116 amp + CSR8645 (has aptX) bluetooth

  • Murilo Zontur
    Murilo Zontur 4 месяца назад

    Aside from the awesome project, i must say: Your garden is like an paradise, man! What a beautiful and relaxing place to be...very well done, in the same quality level and effort that you put in your projects! Cheers!

  • Peace Lover
    Peace Lover 4 месяца назад

    Where into the module did you wire the batteries?

  • Venkatesh Bhat
    Venkatesh Bhat 4 месяца назад

    Bro I need your help. I want to run 2 speakers which are of 200w each could you please suggest me an amplifier suitable for that. Thanks a lot waiting for you precious reply. Best of luck for your future videos tc.

  • bob bobson
    bob bobson 4 месяца назад

    Amplifiers aren't loud their powerful; speakers are loud...

  • nastyboy infante
    nastyboy infante 4 месяца назад

    Can you add a bluetooth module to it?

  • Chris G
    Chris G 4 месяца назад

    OK I want to do this but have zero skills on this department 😂

  • Matthew Finch
    Matthew Finch 4 месяца назад

    How did you power the speakers in the field test?

  • Sipriano Tomas
    Sipriano Tomas 4 месяца назад

    So does this a make a speaker louder ??

  • labib laksana
    labib laksana 4 месяца назад

    God, I envy you the way you do your life is so beautiful :) :)

  • Yargadarg Productions
    Yargadarg Productions 4 месяца назад

    Your neighbors must love you.

  • Marwin Talens
    Marwin Talens 4 месяца назад

    Well then I need 2x 180 watt 4ohm and one subwoofer channel 200watt 8 ohm

  • Berin Bosnjakovic
    Berin Bosnjakovic 4 месяца назад

    Can i make this and connect it to two 12 watt 8 ohm speaker?

  • Berin Bosnjakovic
    Berin Bosnjakovic 4 месяца назад

    Can someone tell me the watts of the speakers he used?

    PARK CIRCUS FOOTBALL CLUB 4 месяца назад

    Bluetooth BR/EDR audio streaming
    it's so frustrating how can I Bluetooth module for a headphone like this I have provided the link above,
    can you give me the names of the Bluetooth since you are a tech savvy person, and know a lot about the technology
    you Can provide me with such module name or links , i saty in india so amazon .in would help

  • Denis Sato
    Denis Sato 4 месяца назад


  • Andrew Riegel
    Andrew Riegel 4 месяца назад

    Instead of the batteries..can I use a rechargable ones?

  • Fjodor Grenz
    Fjodor Grenz 4 месяца назад

    Gonna put dis in mah homemade pc

  • BoxexasDeveloper
    BoxexasDeveloper 4 месяца назад

    Hi, i have a question. I connect this on my speakers and battery car but when i volume up above medium the sound break but if i try with a charger they work fine! What can be the problem?
    The same happens when i try with pc battery.

  • Mr. Ws6
    Mr. Ws6 4 месяца назад

    Can this be water proof?

    • Fjodor Grenz
      Fjodor Grenz 4 месяца назад

      Mr. Ws6 ummm if you make it waterproof yes.

  • MLGmutter 69
    MLGmutter 69 4 месяца назад

    Hi Whats the Name of the Song you use?

  • Buchanan _MJ
    Buchanan _MJ 5 месяцев назад

    £9.99 on ebay with free shipping. Couldn't resist.