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Klipsch Synergy KSW12 12-inch 105-watt Powered Subwoofer | 
 enlarge | Brand: Klipsch
Category: CE
List Price: $499.99
Buy Used: $225.00
You Save: $274.99 (55%)
New (3) from $269.00
Avg. Customer Rating:  14 reviews
Media: Electronics
Shipping Weight (lbs): 35
Dimensions (in): 17 x 15 x 15
MPN: KSW-12
Model: KSW-12
UPC: 743878010466
EAN: 0743878014464
Availability: Usually ships in 1-2 business days
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| Features:
| • | 12-inch bass reflex subwoofer transforms songs into live concerts and movies into lifelike adventures | | • | Provides 105 watts of continuous power (440 watts of dynamic power) | | • | K-1071-K 12-inch down-firing fiber composite cone woofer | | • | Built-in discrete MOSFET amplifier | | • | Accepts LFE, line-level and speaker level inputs |
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| Editorial Reviews:
Product Description
Both audiophiles and videophiles agree, to get the most from today's digital soundtracks and music recordings, you need a quality powered subwoofer to accurately reproduce the low bass information. These most demanding listeners will only accept a sub that delivers hard-hitting bass, stellar sound quality, unmatched musical performance and contemporary design. For these reasons, Klipsch is the brand of choice among true music and movie lovers. Ground-shaking bass, soul-stirring performance, new design and new features provide a subwoofer guaranteed to please the most demanding listener. If you're looking for room-shaking bass, this is definitely the ticket!
Amazon.com Product Description
REVIEW: Complete a powerful home theater system with the deep, driving bass of the Klipsch KSW-12 powered subwoofer--perfect for combing with high-performance Klipsch Synergy Series surround sound configurations. It couples a 12-inch driver to the floor for optimal performance. This subwoofer's high-output, down-firing design "grips" the air and fills a room with low frequency energy that's heard and felt with undetectable distortion. The built-in discrete MOSFET amplifier and 12-inch fiber-composite woofer are as efficient as they are reliable. It provides 105 watts of FTC-rated continuous power, and it has a dynamic power rating of 440 watts. (Dynamic power indicates the actual power this amplifier will deliver to the woofer under normal operating conditions.) The woofer is composed of a Santoprene rubber surround with a fiber composite cone which enables Klipsch subwoofers to deliver on their promise of extended bass response and maximum reliability. This subwoofer accepts LFE, line-level, and speaker level inputs, making it easy to add to the Quintet Microsystem, the Synergy System 6, or any other Klipsch inspired arrangement. The KSW-12's jet ash veneer vinyl finish creates a deceivingly subtle exterior for its earthshaking sound capabilities. What's in the Box
One KSW-12 subwoofer speaker
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| Customer Reviews: Read 9 more reviews...
 OK for HT, poor for music October 13, 2005
53 out of 61 found this review helpful
Having heard this sub while back, I have to agree with the first reviewer. It's acceptable for HT use, but poor for music; regardless of their nonsense about dynamic power.
Although, movies may get away with "large, short-term peaks of power", many music will demand nearly constant, power. In virtually all movies, special effects and sound tracks last only a few seconds; all most all of it is a dialog between the actors. Certainly, there is no bass in dialogs. Music is different. I mean, how often do you hear a couple note of bass, followed by few more notes several minutes later?
I'm not sure where some of the reviewers get their information, but there is no such thing as a "crisp & sharp" bass. Crisp & sharp implies, fast rise time, which means there are significant higher harmonic(high frequency) contents in the sound. Anyone who understand the concept of harmonics and Fourier series should understand this. The "crisp & sharp" part of the "bass" comes from the satellites. The most common reason why some bass sounds muddy/boomy is because of poor integration between the satellites and the sub or due to the standing waves caused by the sub-room interaction.
I also don't get how anyone can get "imaging" from a mono sub. Even if you use two subs, low frequency sounds are difficult to localize. This is the very reason why you can place the subs significant distance from the satellites.
The rattling of the object in the room has EVERYTHING to do with the bass, regardless of the distortion. Obviously, the reviewer has never experienced the room pressurized by two 15" subs driven by 1000+ watt pro-audio amplifier. You can barely hear it, but you will definitely feel it. If you have never heard/felt a real sub, then you really don't have a good reference point to judge the other subs. All you can do is note the significant improvement KSW-12 made over the original 8-inch "sub".
That being said, the KSW-12's low end of the frequency response is bit lacking for an "almost-high end sub". It seemed to struggle with the loud rap, as well as the classical music. For movies, it wasn't as bad. It handled most action scenes well, but combat scenes with exaggerated explosions, the sub clearly ran out of gas.
Objectively, the specs are some what misleading. Why would anyone spec the subs at 1/8-space? I've seen half and 1/4-space specs, but 1/8-space? Also, how dynamic is the "dynamic power"? This sounds too much like my plastic 2" 100 watt(PMPO) multimedia speakers I had back in college.
In short, KSW-12 has respectable volume, but is unsuitable for continuous music with significant bass content. It also doesn't have the low end impact. It's spec are completely unrealistic and you won't get anything near the listed spec in a typical living/family room playing music, or movies with heavy action sequences. In the end, it's only a bit better than a typical consumer level 12" sub.
Stick to subwoofer-only manufacturers... June 19, 2005
38 out of 60 found this review helpful
I listened to one of these the other day at a local shop, it was very disappointing. If you are buying it for movies only then maybe it wouldn't be too bad but for music it is useless---hits low but very muddy and slow, couldn't keep up with the main speakers but often drowned them out instead of blending in smoothly.
I liked that it has a range of input connections, but the bottom line is that the sound quality is mediocre to horrible. And to think that this thing originally retailed for half a grand...what a joke!
My brother has a Hsu STF-2 and a SVS PB-10, both of which easily blow this thing out of the water for both movies and music. Small wonder, both of those companies make ONLY subwoofers and they sell direct online so you get much better bang for your buck with no middleman retailer adding on his cut.
Decent and average! March 13, 2006
15 out of 19 found this review helpful
I bought this sub based on the reputation of the company; BIG MISTAKE! Yes, the sub gives decent movie bass but it is almost useless with music. The bass produced by this sub is one note, slow and, although it hits fairly hard, it just doesn't hit you in the gut like it should, it is also somewhat boomy and the crossover is very loose. Overall: I PAID TOO MUCH FOR THIS THING and I am stuck with it. Again: it is decent, but that is all!
Klipsch KSW-12 an excellent subwoofer July 20, 2005
8 out of 15 found this review helpful
The Klipsch KSW-12 Synergy 440WATT Subwoofer produces superb bass without boominess. I have the KSW-12 connected to a Harman Kardon DPR-2005 system with oldish Bose series II 10.2 speakers. Unlike some subwoofers that produce muddy or boomy bass, the KSW-12 produces bass that sounds crisp & sharp. Moreover, the KSW-12 does not cause the walls, objects in the room, or windows to rattle. For readers unfamiliar with sound production, objects rattle due to the distortion produced by a speaker--not from the bass sound wave it produces. The KSW-12 gives the listener a feeling of being at a live performance. Purchasing the KSW-12 at the low price of $299.00 is almost criminal.
 Clean and deeeep! August 17, 2005
6 out of 8 found this review helpful
This subwoofer is the perfect addition to the SF-1 series tower speakers by Klipsch. When watching Star Wars the other day with my family, and there was a sudden explosion in the opening scene, someone asked if something had hit the house. I was proud to assure them that the sonic effect was being produced by this subwoofer.
Its completely configurable too, so if you have the sound turned down but you still want to feel those subsonic frequencies you can turn both the volume up and the cross over up, until you can hear it again.
Also, it turns itself off automatically if you play music that doesn't contain sub sonic frequencies, so all your music doesn't artificially boom.
When listening to Trance or House music it really shines and give your stereo a bigger than life sound.
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