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

Комментарии • 3 806

  • DIY Perks
    DIY Perks  Год назад +138

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

    • DEADPOOL 55
      DEADPOOL 55 День назад

      Hello I got one of those and I was trying to change the mode but my screwdriver slipped and hit the two contacts on it and the sound stoped but the bored was still on and Bluetooth and it was all connected but I could not get the audio to come out again I put it in the other connector it didn't come out I put it on another one and it still didn't come out so all I'm asking is can you find a solution or help me please thank you

    • lucasrosmano
      lucasrosmano 4 дня назад

      Hey, man! Nice video! If I use this will be louder?
      Thank you!

    • Bas Ketbool
      Bas Ketbool 21 день назад

      DIY Perks ทำ

    • jakob findlay
      jakob findlay Месяц назад

      i have a question about your 2 bluetooth speaker builds in your opinion which of the 2 has better audio quality this amp or the one in the concrete speaker?

    • Kursad Polat
      Kursad Polat Месяц назад

      Would you still recommend this amplifier instead of another model?

  • Avi Assayag
    Avi Assayag День назад

    I'm sorry to say - but the whole thing doesn't work for me. II followed the instructions to the letter - and the cheap Chinese receiver didn't function. I had to throw it away, a real shame :-/

  • Basti !
    Basti ! 5 дней назад

    1:11 the butterfly is thinking like kill me please

  • Prince of Bama Dillingham
    Prince of Bama Dillingham 6 дней назад

    So I could power thur the fuse box in a car ?

  • Amanda Hugenkiss
    Amanda Hugenkiss 7 дней назад

    Baad asss

  • Anirudh Sharma
    Anirudh Sharma 8 дней назад

    can i use my 19 v 3.3 amp 60 watt charger.......if not please give another alternative........other than your smart charger ...thanks

  • Nadir Ilyas
    Nadir Ilyas 10 дней назад

    I love You bro Your invention is amazing

  • felix lu
    felix lu 10 дней назад

    hey bro the problem is that how you charge the battery? and what kind of battery you use?

  • Romulo Ceretta
    Romulo Ceretta 12 дней назад

    How many W and ohms in each bookshelf speaker?

  • Erik Stanek
    Erik Stanek 14 дней назад

    Hi, very smart video. I like this, because ist's cheaper than other building instructions.

  • Anel Redzic
    Anel Redzic 16 дней назад

    But how to charge it????

  • Anel Redzic
    Anel Redzic 19 дней назад

    But, how to recharge it?

  • Pra Yag
    Pra Yag 19 дней назад

    Does 2x9v battery is enough to power this ?

  • A⃟n⃟n⃟z⃟a⃟l⃟i⃟s⃟a⃟ A⃟n⃟n⃟z⃟a⃟l⃟i⃟s⃟a⃟

    eh i dont want my amplifier to be loud i want my speakers to be loud..

  • Albert Magdelphi
    Albert Magdelphi 19 дней назад

    Android app for all bluetooth audio device

  • Fran Maric
    Fran Maric 23 дня назад

    Can you use that 3.5mm jack as audio input?

  • Emmanuel Bekele
    Emmanuel Bekele 25 дней назад

    you dumb bitch. 12 volts kill the amp

    • Emmanuel Bekele
      Emmanuel Bekele 25 дней назад

      you didn't say shit about wattage
      learn something for fucks sake

  • TheResidentSkeptic
    TheResidentSkeptic 26 дней назад

    I finally got around to building this, but that amplifier is very distorted, even at just 75% volume with gain off. What gives?
    I've tried 8ohm speakers at 20v, and 4ohm speakers at 12v - same thing. Sounds like a dollar store stereo...

  • Another Dick
    Another Dick 27 дней назад

    Its loud more because speakers high sensitivity, 50w isnt something crazy loud.

  • Allan Camara
    Allan Camara 29 дней назад

    Hi! Do have any update for this video or build? Like adding a subwoofer?

  • GabrielTheGuitarist
    GabrielTheGuitarist Месяц назад

    Those are some really nice speakers...

  • GlareSoul
    GlareSoul Месяц назад

    How long does the batterys last?

  • Giossy
    Giossy Месяц назад

    How can you recharge the Batterypacks in these battery holders without taking them out?

  • Milton Freeman
    Milton Freeman Месяц назад

    this thing actually works just make sure u get the right one

  • Sebastian Beattie
    Sebastian Beattie Месяц назад

    What song was that? i love it!

  • Dominic Lakatos
    Dominic Lakatos Месяц назад

    That is seriously overpowering the drivers

  • Philip Feghaly
    Philip Feghaly Месяц назад

    Hey Matt,
    1- i have 2 spare 6 " speakers that i want to use for this project ( 25 W Nominal power & 240 W max music power ), Will the TDA7492P 50W+50W cover my needs ?
    2- i want to use 3.6 v 18650 batteries and charge them without the need to remove them, what additional hardware i need ?
    3- should i use 3.6 v * 3 or *4 or *5 (10.8 v or 14.4 v or 18 v) aiming for high volume.

  • charlie brownau
    charlie brownau Месяц назад

    higher bass doesnt equal louder volume if your going to only hear bass and miss out on guitar and vocals

  • mukesh kaviyath
    mukesh kaviyath Месяц назад

    How to charge those batteries? Can we use the same power jack?

  • xX_AceHunter_Xx
    xX_AceHunter_Xx Месяц назад

    you sir must be awarded =)

  • Yağmur Bayrakdarlar
    Yağmur Bayrakdarlar Месяц назад

    Hi, what camera did you use in the field , end of the video?

  • Göran Gustafsson
    Göran Gustafsson Месяц назад

    does anyone know a similar amp but for 2*120W?

  • Des Chew
    Des Chew Месяц назад

    Well done. Enjoyed watching your video. A worthwhile knowledge learning session. While I am might not build one same as urs as we live in city and apartment. How about giving a tutorial to build a mini Bluetooth speaker?

  • niknik992
    niknik992 Месяц 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 Месяц назад

    It's called amplifier not blaster

  • Peter Hindes
    Peter Hindes 2 месяца назад

    what power jack do you need?

  • ibles bosuok
    ibles bosuok 2 месяца назад

    Awesome park

  • fredrik 887
    fredrik 887 2 месяца назад

    how is the piano background called?

  • Utkarsh Mathur
    Utkarsh Mathur 2 месяца 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 2 месяца назад

      you will need a 12V adapter

  • Julian Anthony
    Julian Anthony 2 месяца назад

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

  • Murilo
    Murilo 2 месяца назад

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

  • D- Gadgets
    D- Gadgets 2 месяца 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 2 месяца назад

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

  • Andrew Lofthouse
    Andrew Lofthouse 2 месяца назад +1

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

  • saad 208
    saad 208 2 месяца назад


  • Ali Waqas
    Ali Waqas 2 месяца назад

    Wasted your whole video on that fuc*ed up Music

  • Lev SC92
    Lev SC92 2 месяца назад

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

  • Vedant Ghadi
    Vedant Ghadi 2 месяца 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 3 месяца 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 3 месяца назад

    Work 2x9v ?

  • Mohammad Ali
    Mohammad Ali 3 месяца назад

    Super amazing video

  • Miguel Pagan Sr
    Miguel Pagan Sr 3 месяца 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 3 месяца назад

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

  • Truth Seeker
    Truth Seeker 3 месяца назад

    : ) !!

  • Ronald Lobo
    Ronald Lobo 3 месяца назад

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

  • Ronald Lobo
    Ronald Lobo 3 месяца 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 3 месяца назад

    RIP neighbors

  • Ahmad Idul Fatri
    Ahmad Idul Fatri 3 месяца назад

    Song is hooky with sloane audio library

  • Alex L
    Alex L 3 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 4 месяца назад

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

  • 3.467328168890698e+23
    3.467328168890698e+23 4 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 4 месяца назад

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

  • Plester
    Plester 4 месяца назад +9

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

  • Mogalize
    Mogalize 4 месяца назад

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

  • Taco J
    Taco J 4 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 4 месяца назад

    I just bought 2 :)

  • Savage Tech
    Savage Tech 4 месяца назад +1

    Can i use an 11.1v lipo battery?

  • Levi Jones
    Levi Jones 4 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 4 месяца назад

    You are the greatest

  • QUIT.
    QUIT. 4 месяца назад

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

  • Mike Anaya
    Mike Anaya 4 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 4 месяца назад

    man u have a good garden

    TRAFO COMCHAN 4 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 4 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 4 месяца назад

    Could I use this amp on a raspberry pi?

  • Timon Martin
    Timon Martin 4 месяца назад

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

  • Woody
    Woody 4 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 5 месяцев 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 5 месяцев назад

    Whats the input voltage neccessary for the chip?

  • G.P. Grobler
    G.P. Grobler 5 месяцев 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 5 месяцев назад

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

    • Gian Carlo
      Gian Carlo 5 месяцев назад

      DIY Perks , please reply

  • Piotrek Krolikowski
    Piotrek Krolikowski 5 месяцев назад

    congrats on 1 million subs

  • Daniel absi
    Daniel absi 5 месяцев назад

    congratulation for your 1M sub.

  • Selena Hiko
    Selena Hiko 5 месяцев назад

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

  • Subhadip Ghorui
    Subhadip Ghorui 5 месяцев назад

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

  • Max Timmins
    Max Timmins 5 месяцев назад

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

  • Tom Brown
    Tom Brown 5 месяцев 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 5 месяцев назад

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

  • pankaj purbhoo
    pankaj purbhoo 5 месяцев назад


  • pankaj purbhoo
    pankaj purbhoo 5 месяцев назад


  • Johnny Doe
    Johnny Doe 5 месяцев назад

    How do you charge the batteries?

  • NiC
    NiC 5 месяцев назад

    Anyone hera sweet home alabama near the start.

  • G.P. Grobler
    G.P. Grobler 5 месяцев 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 5 месяцев 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 5 месяцев назад

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

  • haseeb amin
    haseeb amin 5 месяцев 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 5 месяцев назад

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

  • DrkGamer21
    DrkGamer21 5 месяцев назад

    How do you recharge it

  • Hans Zimmer
    Hans Zimmer 5 месяцев 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?

  • Beat x
    Beat x 5 месяцев назад

    What for Speaker does he use?