Amazingly Slim and and powerful 1200W.
Just Sony SW1 300W amp is sufficient.
Slim and it could take only 5 inches[including box] of depth in your car's boot.
Sony did not compromise the quality of sound to size.
My way of getting the most of it:
Car head unit :Sony GTX-45U.
Rear Speakers :Sony GTX - 6930 400W.
Amplifier : Sony SW1 350W.
Woofer : Sony XS-L10S - 10".
Woofy Cabinet :Enclosed and big one.
Car type : hatch back
Quality of sound :The depth of bass is amazing, I even compared running a same song in other cars with sony sound systems, but the bass coming from this slim woofers were deeper and powerful. I had that punch in the beats.
A must buy.
Bottomline: Superb bass from slim wonder.