MP3 Backpack Speakers

Hello. This is my first Instructable, so please rate, comment, and make suggestions. In this 'ible, I will show you how I wired and installed some cheap speakers into my backpack.
They produce fairly good quality sound indoors, but seem rather muffled when outdoors. I found this to be a great idea when it came upon me, as it would be convenient to bee able to carry my books in the bag and be able to listen to music "hassle free".

Step 1 Supplies

Tools:
Hot Glue Gun
soldering Iron
solder
soldering flux?
damp sponge
pocket/utility knife
scissors
lighter
electrical tape

Materials:
book bag/backpack 
cheap cassette/radio or speakers
a 3.5mm AUX cord (or old headphones/earbuds)
MP3 player 
old bags with mesh pockets/store-bought mesh material 

Comments

[ade souza]

You get cheap amps will work best for this. i made the same backpack but i connected a small radio and the speakers were soldered to the loud speaker of the radio. and i controlled the songs from my Nokia phone. with a Nokia transmitted. it worked out gr8. i made this in 2010 for some school fun.

[Vijster1]

Ahh, so you used a little amp from a pocket radio... I have tried before, but failed when I got to dealing with the input. How did you arrange the input on the pcb? how could you tell where to disconnect the radio's outputs?

[bowmaster]

This looks cool. Now I wanna make a system with a 5" subwoofer.

[Vijster1]

Lol, nice! Tell me how it goes if you choose to make one.

[bowmaster]

I would need an amp through.

[Vijster1]

I don't know if the amp in the link has enough power to drive a subwoofer, but there are plenty of small amps for sale on the internet that would be sufficient (and small enough). You could buy one if you are willing to pay the price. (You probably already know that.)

[bowmaster]

Yep, I was thinking of making a small amp, like in an altoids tin. I've seen a few on Instructables I believe.