Originally Posted by ssa_whiskey
Well, here's the thing. All speakers are pretty much DC. Positive/negative. If you apply AC voltage direct to the speakers, you will get a 60hz hum from them right before they blow out and possibly catch fire just to get back at you for doing that to them!
Amps provide power in standard DC to the speakers. The question I think you need to ask is will the Amp take AC... The best way to drive your speakers is to connect them to a home receiver. At that point you need to be concerned about the resistance (ohms) the speakers offer. Most home stereos are about 8ohms (4 for the better ones!). If your speakers are 2ohm, you could end up damaging them in the long run on the receiver. Try to match the impedence (resistance, ohms whatever) of the receiver and the speakers.
Lastly, make sure that your source does not exceed what your speakers can handle. In essence, do not connect 85watt speakers to a 150watt stereo!
I use 4 10" car speakers in my home rig. They seem to work just fine.
A car amp on the other hand, was designed for DC, NOT AC. It will burn quicker than anything if you plug it into the house outlet!
So let's review:
1) If impedence doesn't match between speaker and stereo, don't worry too much, just don't turn the sound up too far.
2) Do NOT apply AC power to the speakers directly
3) Do NOT apply AC power to the amplifier from your car
4) Make sure the receiver you connect the speakers to doesn't overpower your speakers.
Class dismissed. I need more pizza.
Hope I could help!