A friend wants a sub for his car. He asked me for recommendations so I did some web research. I couldn't find any car subs for the same price(or close) to the Shiva in terms of performance. At least according to my rudimentary understanding of T/S parameters. He wants something that has decent SQ but also booms, almost seems contradictory to me but I guess his idea of quality is differant than mine. The box would have to be small, less than 2 cubic feet. I was thinking of tuning it fairly high, around 35hz to give the punch he wants. Also, should he just get a car amp or would the sub100 amp be enough for this?