my homemade speakers (need help)

[thebic4]

So i have always been a person to take things apart and make something out of it. well any ways when i found that my sister was throwing away her 7 inch POS tv she got when she little i went to work on it. taking out the speaker with the positve and negative wires intact it cannablized some old headphones and replaced the mini speakers with the nice tv speakers in an attempt to make a poratble sound system (some what portable :P)

i was not suprised that the rig did not work after plugging them in my laptop. My guess i need more volts or amp. what do you other tinkers think. Input would be nice.

 

 

O O

Y

I <-- speakers connected to headphone jacks

I

L

[Skevitj]

They're never going to work like that, TV speakers are usually around the 20-30W range, headphones are probably closer to 0.25W, a simple line amp should fix that up though. Voltage and current are not overly important when dealing with audio equipment as much as the impedance of the speakers and driving impedance of the amp and the power rating on both speakers and amp.

 

To use them you just need to turn the system into an equivalent home stereo, with the headphone jack plugging into an amplifier (possibly will need a pre-amp as well) and the amplifier driving the speakers. You'll want to determine the maximum wattage and impedance of the speakers first though or you risk destroying the speakers and or the amp. After that, you select a stereo amp with the same impedance on each channel as the speakers, and a power rating less than the max for the speakers and you're good to go. Wiring for the most part should be pretty straight forward, the main concern will be determining which wires are ground, left and right. and making sure you don't accidentally short anything out.

[thebic4]

They're never going to work like that, TV speakers are usually around the 20-30W range, headphones are probably closer to 0.25W, a simple line amp should fix that up though. Voltage and current are not overly important when dealing with audio equipment as much as the impedance of the speakers and driving impedance of the amp and the power rating on both speakers and amp.

 

To use them you just need to turn the system into an equivalent home stereo, with the headphone jack plugging into an amplifier (possibly will need a pre-amp as well) and the amplifier driving the speakers. You'll want to determine the maximum wattage and impedance of the speakers first though or you risk destroying the speakers and or the amp. After that, you select a stereo amp with the same impedance on each channel as the speakers, and a power rating less than the max for the speakers and you're good to go. Wiring for the most part should be pretty straight forward, the main concern will be determining which wires are ground, left and right. and making sure you don't accidentally short anything out.

Thanks for the help!