If you like SQ more, you'll LOVE the e10a in a sealed box. It is awesome, with bad *** SPL.Originally posted by KoBan715 dose a dd3510 sound better sealed than an Hc 10? My Hc is ok in sealed. I have ported box to but its to big and take up alot of trunk space. I like SQ more than SPL so hows the 3510 SQ?