Guys!
Save yourselves all the thinking and hard work on a sub and just buy one of these.
Recently bought one and just tucked it behind the passenger seat and it seriously does a really good job loud and or soft with no distortion and a really well rounded bottom end.
No boom and not soft or under powered by any stretch.
I recently installed a whole new system which includes a Pioneer 7"Screen which runs Alpine 4" speakers in the dash and a Kicker amp which runs Alpine 6X9" Speakers in the doors and of course the Kicker Hideway Sub.
Could not be happier and its sounds fantastic with its clarity,separation,volume and power as a whole system and ease of install.