3D Printed Casing for Bluetooth Amplifier TDA7492P

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Introduction: 3D Printed Casing for Bluetooth Amplifier TDA7492P

I've earned an old amplifier with speakers that a friend was throwing away and since the amplifier was not working, I decided to recycle the speakers with an wireless bluetooth set.

Step 1: Check Your Speakers and Choose Your Audio Amp Board

there is a variety of audio amp boards you can get.

i got this one but you can pick an appropriated one for your project.

http://www.banggood.com/TDA7492P-50W50W-Wireless-B...

http://www.ebay.com/itm/TDA7492P-50W-50W-Wireless-...

in my next build i'll try this one for 3W speakers:

http://www.banggood.com/2x3W-Mini-Digital-Power-Am...

it's up to you or the needs of your project. just check some reviews first, the one i got didn't had an AUX line in...

Step 2: Choose and Check a Power Supply

check your amp board schematics for the power supply info.

in my case its 8-25V DC. and i have a box full of old ones.

always check the Voltage to see if it's working well

Step 3: Design a Fancy Enclosure for Your New Amp. System!

Measure the PCB and design 3D file in the CAD software of your choice.

ex.: solid works, fusion 360, sketch up, rhino, blender, etc....

Step 4: 3D Print or Build Your Own Case

if you use the same board as I did, feel free to download and print my design.

http://www.thingiverse.com/thing:1602238

if you don't have a 3D Printer you can always use https://www.3dhubs.com

Step 5: Assemble and Check One More Time If Everything Works

Step 6: Test It Again and Have Fun

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    13 Discussions

    0
    rene1234560
    rene1234560

    Question 8 months ago

    Hallo

    ich habe mir auch auch eine eine Platine gehört. Bluetooth 4.0 Audio empfänger digital TDA7492P 50W * 2 platine TE381
    Diese möchte ich im Bad vor meine Deckenlautsprecher schalten. Damit diese aber nicht immer Stromverbraucht habe ich noch keinen Wifi Switch von Sonoff davor geschaltet. Wenn ich über den Wifi-Schalter die Bluetooth-Platine anschalte, diese immer mit der minimalen Lautstärke gestartet habe, kann man diese dann nur über den Schnupper (auf der Platine) lauter stellen. Das ist aber schlecht, wenn stirbt alles in der Zimmerdecke verbaut ist. Gibt es eine Möglichkeit die Start Lautstärke gehört?

    Danke und Gruß

    0
    sbizarro
    sbizarro

    Answer 6 months ago

    Hi,

    My German skills are not the best ones and google translator does a really bad job on it.
    Didn't understand the question.

    Best wishes,

    0
    nstaas
    nstaas

    Question 2 years ago on Introduction

    We are doing a similar project for a school project. By any chance could you tell me where you got the Fusion 360 file for the TDA7492P board. Did you draw it? Would you share it with us? Thanks very much.

    EDIT: Thanks for sharing the board. Nice one!

    0
    Arthuro7
    Arthuro7

    3 years ago

    Hi @sbizarro

    How did you like the quality of the amplifier board that you used in your project?

    I'm thinking of using a similar board that adds AUX input https://goo.gl/1sSNbv

    0
    sbizarro
    sbizarro

    Reply 3 years ago

    Hi Arthur,

    the sound quality is really nice for the price. mine doesn't have a line in nor on/off button.

    still i use it almost every day and so far works great.

    0
    PandoodleR
    PandoodleR

    4 years ago

    Hey there. I also have some speakers that are not being used.
    What kind of wire goes into the speakers and to the amp?

    Cheers (;

    0
    sbizarro
    sbizarro

    Reply 4 years ago

    Hi!! you just need two wires for each speaker, and a power supply for the bluetooth audio amp. module.

    1.png
    0
    hpoche
    hpoche

    4 years ago

    This is very cool. so many things are Bluetooth. could the case be modified to include speaker jacks on back an house a small power supply inside? great project! -hjp

    0
    sbizarro
    sbizarro

    Reply 4 years ago

    Thanks!!! just need to redesign it... maybe in the next one. I really need an AUX Line In.

    0
    semaphoraus
    semaphoraus

    4 years ago

    This is a nice project!

    0
    sbizarro
    sbizarro

    Reply 4 years ago

    thanks!!

    0
    Irwini
    Irwini

    4 years ago

    Awesome housing for the board!

    0
    sbizarro
    sbizarro

    Reply 4 years ago

    thanks!!