jl 10w6v2, jl 500.1, and a pioneer p880prs head unit.

I won't have an amp for the components, so it'll just be running off the deck.

My budget is like 150. Its down to these 4.

-Polk MMC6500

-DIAMOND AUDIO D661

-Polk db6501

-JL AUDIO VR650

I just need to know which would I get the most out of if I'm not hooking it up to an amp.

 

imo, just wait until you get an amp to power some components... if not, the speakers won't be pushed to their potential.

in the mean time, buy some nice coaxials and power them from your HU. im currently running Pioneer TS-A1672R... they fit perfectly with the stock basket (no need to mod basket) and sound great for the price of $50 shipped on ebay.

but if you insist on getting components and getting an amp later i would go for the diamonds.

 

Diamonds are too power hungry for no amp, you may blow them before you get the amp put in.

 

I don't think you need in amp in all cases. The speakers can still sound pretty good just off the amp. Especially in the small cabin of the s2000 where its so compact.

I guess cross the diamond audios off the list if they are power hungry.

 

from woofersetc.com, it looks like the Polk db6501 are the most efficient
of the ones you listed, so they'd probably be the best off of headunit
only power.