Battery-powererd Bluetooth Audio Amplifier - packs a punch!

A wireless Bluetooth amplifier that doesn't include speakers - add your own to taste!

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    Description

    This design is right for you if you want to enjoy wireless music but aren't happy with how Bluetooth boomboxes sound or simply prefer making your own things (i do, too!)

    This efficient amplifier box is powered by the common Sony NP-F compatible LiIon batteries and pumps out 15W of audio goodness to each of the two stereo speakers! Connect with any Bluetooth-enabled device and you'll be ready for literally days of music playback from a single battery.

    Showcase and electrical wiring:

    Materials and methods

    Here's what you'll need:

    - Both printed parts
    - 2 M3x8 to M3x12 bolts, cap head, pan head or similar
    - 4 M3x12 to M3x20 bolts, cap head, pan head or similar
    - Bits of jumper wire
    - Drill (optional)
    - A pair of speakers
    - Any Bluetooth-equipped device that can play music

    - Amplifier board http://amzn.to/1RnSQww
    - Boost converter http://amzn.to/1WMEFch
    - Bluetooth receiver http://amzn.to/1WMERIx (get the ones that look like USB flash drives)
    - LED voltmeter http://amzn.to/1UbM0yK
    - Speaker Terminal http://amzn.to/1RnU6zC (might not be the exact one)
    - Batteries & Accessories http://amzn.to/20x1D5B
    - Smaller compatible batteries http://amzn.to/1Vh5zYD
    - 2.6mm plugs https://goo.gl/g25PmP (not sure where else to find them - let me know if you have a source!)

    Assembly:
    Remove the miniature plugs from their housing and make sure they fit their holes. If not, widen the holes in the printed part with a drill. Solder bits of jumper wire into their ends and use some super glue to fix them in place. You can use a NP-F battery to guide them to their final position!
    Route the wires into the enclosure and wire up the components as seen in the video. The speaker terminal screws in with the two shorter screws to the side, the two case parts match up with the longer ones. If threading the screws into the plastic is too hard, use a M3 tap or a slightly larger drill to prepare the holes.
    Make sure none of the components short out each other and use Kapton or electrical tape to insulate them.

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    Comments

    F02b16476bffd2535f391c9b42a29159?default=blank&size=40liu bing added this to the electrcs collection ago
    F6c2b80053cf43c103a4d15a2e036e27?default=blank&size=40marcofaby.73 added this to the Elettronica collection ago
    5243c8eed82be8d1dc4fee62bcc0a5cc?default=blank&size=40bic2017 added this to the Produit001 collection ago
    9e9f7b586c47c5c88b0abc134983a517?default=blank&size=40Jason Stokes added this to the Audio collection ago
    9430d7ed71063fecf9b8fbcdcce28a3c?default=blank&size=40dieweltstehtstill.de added this to the battery-related collection ago
    0adb9d11fce50ae39e271630493ed387?default=blank&size=40jake carvey added this to the Camera collection ago
    Mini ocieicon101 squareOcie Ward added this to the household collection ago
    423039edfb291edc269001c546204740?default=blank&size=40Patrick Sawyer added this to the To Make collection ago
    02a5aa315be5b16a840eeae7e71a09ee?default=blank&size=40kalfie7 added this to the Cool shiz collection ago
    51df1627020ceaa2798916667f9f8bd2?default=blank&size=40Pyromane added this to the To print collection ago
    Ff71fa0c8907c5a4a033ea72f13c7f2c?default=blank&size=40char.enar added this to the Electronics collection ago
    Mini miv izlr 400x400tca added this to the audio collection ago
    Afe7aba764a979794e4153e0ffcd3fef?default=blank&size=40BrianRidge added this to the Stuff to make collection ago
    F9a8fbf413f163a500a9aace8408806b?default=blank&size=40irrenhaus added this to the things to print collection ago
    Mini img 0315Bok NgSinco commented ago

    Is it just me or does the Amp Case Top have 4 tiny floating blocks beneath the 4 tabs for the battery catch?

    Mini dsc 1006 01 01 01Håkan Berg added this to the To print collection ago
    825344250ab66cc79d3724c820a9621b?default=blank&size=40Technoplunk added this to the Interesting collection ago
    A9a15fcec1ffd439e7c63c93b4c4fe11?default=blank&size=40nieborfax commented ago

    This is really cool. I had no idea stereo amplifier boards were so relatively inexpensive. Great project and Great Idea!

    Mini  1140400 ssqThomas Sanladerer published this design ago