Polk Audio MM6501 vs. DB6501

vermithrax

I've settled on Polk speakers for my front doors. Going to initial run off of a JVC 20w RMS head unit, with maybe an amp down the line sometime.

Which of these should I get? Money is tight, but $80 difference, so I could probably get the MMs if it is worth it.

I may get a powered sub if I feel my system needs it still.

What is the difference between these two speakers? Which will work better with my HU, without an amp. Will either give as much bass as the stock speakers running from the JVC HU?

I am torn, help me out guys.