Im looking at two alpine speakers which one would be better?

a href="http://www.alpine-usa.com/US-en/products/product.php?model=SPS-17C2&lang=en&tab=F" rel="nofollow"http://www.alpine-usa.com/US-en/products…/a this one is SPS-17c2 its 50 watts but its frequency responce is 35 hz to 30 khz and this one is 80 watts a href="http://www.alpine-usa.com/US-en/products/product.php?model=SPS-600C&lang=en&tab=F" rel="nofollow"http://www.alpine-usa.com/US-en/products…/a but the frequeny is 70 to 22 khz. I want a speaker to produce some b too so would the top one be better for this? or would it be the same difference? thanks!