I'm not a car guy, but I agree that 2 channel in the house is a very different animal. I'm probably like you though, because I build my speakers for two channel and "play" with crossovers and whatnot. In my opinion, you can get what you have in the car, in the house.....except for the sound pressure you can get in a car. For me, the minimum speaker needs to be a 2-way, but I prefer 3-way. After that it is the size of the system, just like the car. When I started out I liked huge watts and subwoofers in the house. Now I like the tight, fast bass I get from a really good 7" Scanspeak woofer and the nice mids and highs tube amps are capable of. One thing is for sure, when you get it right, two channel is very satisfying.