Conclusion: I got 2 of these for my nissan altima.Have them in sealed box 1cubic foot per sub on a hifonics brutus 1100 watt class d mono amp playing at 1 ohm and they sound great!!Would highly recomend these to anybody that likes quality speakers and sound.With these you get both!
Summary: very good sounding sub for the money. I got a polk sub, grill, and box for under a hundred dollars. this is in my 02 suburban, which I rarely drive, so I didn't want to drop a lot of cash to replace the dead factory sub.
Conclusion: this is a very good sub for the money installed 2 10s into 2 .66 sealed box with Rockford Fosgate Prime R1200-1D hits very hard and sound very clear. Would recommend them to any one im sure there are better subs out there but not at this price.
Summary: This sub really surprised me considering how inexpensive it was. I have always known Polk to be an excellent company. This sub seems to be built very well and really punches out clear tight bass. It doesn't require much airspace either.
Pros: Great sound, seems to be well built, seems to be able to handle much more than I will through at it
Conclusion: Installed this baby in a super crew sound sealed box and put it in my 2005 GMC Sierra 2500HD. I am pushing it with a Rockford Fosgate 500 watt amp running in parallel @ 2ohms and it sounds great. Cant go wrong with this sub.
Conclusion: I have a bachelor's degree in sound design, so I have particular tastes. I already had installed db series door speakers in my car, and really just wanted to complete the set, hoping that it would be a good match. It was.