Speaker to Headphone conversion, powering speakers?
Posted on 2006-04-23
Have 3 questions I hope hardware- audio people can help me on -
1. What type of resistor is needed to cut standard 8 ohm speaker output down for a headphone jack, and is this done on the 2 stereo live line, or also the ground? in nother words, how many resistors, where.
2. Is there any simple way to make mini-amplifier circuit for 8 ohm speakers that need power, when coming out of a MB that has not enough power. You know, you see these built into small computer speakers, with black DC converter, any easy way to make this DC circuit oneself?
3. How to power off a set of speakers when you plug in an extension speaker. Typical example is a TV, with two small built in speakers. Want to add extension speakers and when plugged in, cut off built in ones.
I am trying to add headphone jack and extension powered speakers to TV with only two tiny built in speakers. Budget for this about $0, keep that in mind. Please tell me briefly rather than links, I spend all day searching the net, dont need to do it any more. Thanks for your help.