Mini ~$150 Ultimate Boom Box Lepai 2020 ++ ??

[ph123]

Hi Everybody,

Thanks for the awesome forum and all the knowledge I have found here. So now I am making my own boom Box that I want to take outside to the fields where we play Ultimate Frisbee / Goaltimate. (Ok, that last part is irrelevant.) The relevant part is my friend Adam brought out this awesome DIY BBOX with a Lepai 2020 (http://www.amazon.com/Lepai-Tripath-TA2020-Class-T-Amplifier/dp/B0049P6OTI/ ) that sounded great, and I wanted something just a little better.

Anyway, he convinced me to get the amp, and I am searching for very efficient (marine?) speakers. He got these: http://www.amazon.com/Audio-MR50B-5-25-Inch-Marine-Speaker/dp/B000FKP7MQ/ref=sr_1_9?ie=UTF8&qid=1320870992&sr=8-9

I am considering these: http://www.amazon.com/Infinity-Refer...rhf_dp_p_img_1

or these:

http://www.amazon.com/Polk-Audio-6-5.../ref=de_a_smtd

Can anyone recommend better speakers?

And is there any chance there is a cheap Equalizer that can be added without destroying my SLA 12 v 7 mah batteries life? (6 hours preferred...)

I am also considering using a pair of existing Boston Acoustics A-40 as the speakers with a little box & (sideways) H clamp to hold the components and speakers together.

Sorry for the incredibly NOOB post, but I'm hoping to get up to speed soon.

Thanks for all replies. Much appreciated.