want to make a decent iPod/mp3 amp?
these speakers are powered via a PP3 9V battery
snap on clip for 9V batter
soldering iron and solder
Step 1: Disassemble Speakers
disassemble the speaker with volume and power input, unscrew it from the back, there should be a transformer attached to the back, this is what takes the 230V (110V) down to 9V or the working voltage for your speakers.
on the transformer it should say the primary and secondary voltage, the secondary voltage should be lower, 9V hopefully, if it is not 9V you may still be in luck, if it is 3V use two AA batteries, if its 6V use 4, if its 12V use either 8 AA batteries or a car battery or gel cell battery, look online for one.
however, if you want, you can put a batter inside if you have room, or outside if you dont, and put the speaker cases back together.
Step 2: Removing Board, Speakers, and Wires
Step 3: Adding Power Connector and Removing Second Speaker
for these speakers to be powered from a 9V battery or whatever battery is used you need to add the connector, if you are using a 9V battery, use a PP3 battery clip, you can either solder it directly onto the board or you can cut the wires from the transformer and add it there, this will give you more cable length, and mean you wont have to desolder and solder onto the board.
if going for the second method strip both wires (teeth or wire strippers) then add the connector and twist the wires together and apply some solder.
if you want you can test it now, plug the input jack into your audio source, mp3 player etc.
if you hear music, well done! if not, not so well done, check cables, and battery life.
if all goes well, time to remove the second speaker, unscrew the case and then unscrew the speaker from the casing. now you will have to either cut the cable from the speaker to the board or melt the solder off, thread it though the hole in the back of the case, then resolder, i went for the first option, but as the cable broke off the speaker later i ended up doing the later option but slower.
Step 4: Finishing Up
hope it all works! have fun sharing your music tastes to the public!!!