0ur opinion: :P0LK PSW404 - This high quality powered subwoofer makes opens a whole new dimension of thrilling low end sound for audio and home theater systems alike. This versatile, clinically accurate beast handles bombs and bullets and delicate string sections with equal finesse. High current 200 Watt Continuous (450 Watt Dynamic) power amplifier Frequency Range - 25 - 180Hz Adjustable low pass crossover, phase switchand volume control for perfect blending with any main speakers Auto 0n / 0ff circuit Unfiltered LFE input Magnetically shielded Dimensions - 14-5/16H x 13-5/8W x 16-1/2D Weighs 46 pounds Warranty - 5 Years P&L Speaker; 3 Years P&L Amplifier Subwoofer cable required; not included
:Designed for mid-sized rooms, the Polk PSW404 200-watt powered subwoofer makes a great addition to your home theater or stereo system. The sub features a 10-inch long-throw driver that produces a longer excursion and better linearity than most comparably sized models, along with slot-load venting that improves the bass response by dramatically minimizing turbulence, noise, and distortion. The resulting thunderous bass shakes out all the thrills and chills of your favorite movie soundtracks, while its accurate musicality makes you sit up and take notice whether you're listening to rump-shaking hip-hop or a powerful classical piece.
Contributing to the distortion-free bass response is the rock-solid medium-density fiberboard (MDF) housing, which includes a 1-inch-thick front baffle that minimizes panel resonance. Additional features include a hi-roll surround that supports longer excursion; a high-current 200-watt continuous (375 watts dynamic) power amplifier; adjustable low-pass crossover, phase switch, and volume controls; and an auto on/off circuit that automatically turns on the subwoofer when it senses a program signal. lf no signal is detected, the amplifier turns off within 15 minutes.
The PSW404, which sports a genuine wood veneer finish in black, includes an unfiltered LFE input for use with low-pass filtered output jacks along with filtered speaker-level and line-level inputs. As a final bonus, the sub is magnetically shielded for safe, flexible placement near a TV or video monitor. The sub measures 13.62 by 14.31 by 16.5 inches (W x H x D) and is backed by a five-year warranty on the speaker and a three-year warranty on the amplifier.
What's in the Box Subwoofer, user's manual.
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Testimonials
Average Buyer Rating:

Buyer's feedback: 
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* SWEET Sound ...
I use to have the polk psw12 wanted some thing more compact and this blows it out of the water tighter bass and gives a real theater effect.
Buyer's feedback: 
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Musical sub
Not just a boomer. I generally can't appreciate most rap or any music that has a straight one or two note boom-boom low end. My cup of tea is music with lows that vary in frequency i.e. different types of drums, upright bass violins, tubas, pipe organs, etc. This sub holds clean and true to those and other instruments. Plus it can home theater great crashes and roars but you'll need to turn it up a bit for impact when watching movies. It does have the ability to rattle and roll artwork on the walls when required, but for that I'd prefer a more expensive sub from HSU or SVS. Anyways this sub is heavy, well constructed, has a fairly powerful amp and is just as ugly and/or just as nice looking as all the other black boxes...It should last me for many years.
Only one minus: it has a foam surround. So the issue is foam surround vs rubber. Foam supposedly deteriorates. I have a pair of Kenwoods with foam surrounding the large 15" base cones but the foam surrounds still rock and roll after 30 years...so I don't know...foam is OK with me. Maybe I'll win a lotto before the foam deteriorates on this sub and replace it with a higher end unit. Unfortunately, this unit is just recently out-of-production so if you can find one and can't afford a HSU or SVS, pick it up...it is a good box, no doubt one that you should be able to enjoy for many years...
Buyer's feedback: 
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* Good deal for the price ...
This sub is easy too hook-up, good looking, and delivers a good range of sound from the low-lows to higher notes. Hard to beat for the price. And if you get it delivered by JR, you'll get it very quickly (before the estimated date in my case) and in great condition.
The only downside is that it is a bit-larger and slightly heaver than I personally expected, but only slightly.
Buyer's feedback: 
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Great Product for the price.
Good sound. Not too "boomy". Very pleased with the looks and performance. Polk Audio is also a good company when it comes to customer service. I had a question about the subwoofer and I received a very prompt response.
Buyer's feedback: 
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* Awesome Produc ...
I just recently purchased this sub and lemme tell you, I couldn't be happier. This sub literately shakes the windows of my house. I am a college student so I use this sub mostly for music, and the bass it produces is extremely crisp and clear. It also sounds good hooked up to the surround sound for the TV. Just last week we had some people over to watch 300 and everyone agreed that it sounded better than in theaters...I actually had to turn the sub to half volume because it was too loud.