Summary: I love these subs! Great quality and tight sound. They are not loud and obnoxious outside the vehicle and actually provide a very tight musical sound inside for the listener. I paired 2 subs, in 2 seperate .67 sealed boxes, wired in para with sound ordinance 1500 mono amp.
Pros: Tight sound
Cons: They don't include a protective grille and they're expensive to buy. This is very annoying since the piece of protective plastic is roughly 30% the cost of the sub. Not very consumer friendly.
Conclusion: Although I've spent limited time listening to the system in my boat cabin (where the Polks reside), so far I'm happy with the sound. They're installed in a dual sealed enclosure (I think 0.7cuft per driver) and they are driven by the 5th channel on a Cadence F100-5 amp and complementing four MB...
Conclusion: Have 2 of these in a sealed box running 250RMS to each of them. They are clear and have plenty of low end. When I first got them I was like eh.....I could use a little more output because I'm used to my JL 12w3v3 but once they broke in they really took off and play all types of music great and get...
Rob from Moose Jaw, Saskatchewan, Canada, Sonic Electronix
10 September 2013
Conclusion: I was originally skeptical about this sub due to the low cost and low wattage ratings, but after having this sub for about six months, (and after having been broken in), I am definitely very happy that I purchased it.
Conclusion: The Polk db1040 is just the ticket. It powers my 2 sets of Focal 5.25" coaxials and a 10" Polk sub thru an Alpine head unit. I have very good dynamic range and no distortion at levels that can go way louder than I will ever need.