i hooked up my car speakers to a home reciever a few times, if you have a powerful enough reciever you could i guesss just wire them to 8 ohm. the speakers got damn loud and sounded actuelly pretty nice so it's not impossible but lots of people dont wanna put the time and effort into doing it, its much easier buying home stereo stuff. just my 2 cents
oh and i just got back from mexico and saw they chnaged up ecoustics... seems kinda nice except the relevant product or w/e shows a camera??? lol i didnt know cameras were apart of car audio
fvuck car speakers, they have 4 ohm and 8 ohm speakers too. all different kinds of price ranges. pretty much anything you're looking for. also, great shipping. i've dealt with them a ton.