i got two 12" 12.1 infinity perfect with a sony 760 watt xm-1502 amp and in my '86 honda civic hatch back, these suckers pound.
i have irritated people on the streets and businesses, and my friends who are like one block down with their cars was always complaining and saying "**** dude, your car is too **** loud...!"
technically, i'm giving each sub 190WATTS x 2 @ 2 ohms. these suckers can do 350watt rms and 1400 peak. i don't think i want to go that loud because my hatchback is like a **** bandpass box and it hurts my ears so bad...
but trust me, infinity perfects are a good buy. i don't know about type r's though.....i would suppose they are good as well since they are made by alpine.
i'm happy with my infinity's though. they hit, and they hit hard with my crappy *** sony amp.