No a 10 inch won't beat a 15 inch, Mark is quite correct
Those 10" speakers are mid range units. I used to design and build equipment for 1 man bands and used 10" Zomax speakers as midrange units coupled with 15" Zomax speakers and Sammi bullet tweaters using a three-way second order filters from my hi-fi speaker designs. They were awesome and rattled the foundations.
The huge subs are impressive.
The fashion sense isn't.