SND, Same with me. I just upgraded from the JL W1 that comes in the Stealth Box to an Image Dynamics iDQ 10" and put 600 watts to it. Wow does that speaker shake. I can't even fathom two 15's. Talk about SPL instead of SQ, lol!!!

__________________
2006 4.8iS Black/Black with custom Audison Voce/Image Dynamics sound
Production Date - 10/05