Rating: 
Summary: Descent inexpensive sub. Great Buy.
Review: I have a mid grade home entertainment center. I added this sub to my Sony system with 5 JBL mid rear and front speakers. I was only going to get a JBL Sub to complete my system but could not pass up this deal. .... This sub is worth every penny. I did no think it would make that much of a difference considering my front JBL speakers were 3 way speakers with a 15 inch woofer. I was wrong. I am hearing much better low end and a cleaner response. NOTE TO EVERYONE: IF your experience a hum comming from the sub. it is because of your RCA cable you are running to it. I had a really cheap cord running to it and I experienced the humm noise. I then went and bought a good gold RCA connection and the sub was perfect. SO get a good conector. I recommend turning the crossover to about 110 to 120 and the volume to 4 or 5. I am still playing with this but I think it works good. So for being a college student with not much dough and wanting good quality at a good price, I could not have asked for better.
Rating: 
Summary: About Hum
Review: I have been a stereo enthusiast since 1967, and have been a home theater enthusiast since 1988. Over the years I have owned many systems. Currently, I own three (3) complete home theater systems, including my main one which cost over $30,000. I just bought a KLH ASW10-120 for a desktop system in my office. Reason: Amazon's cost was right, the size is right, and KLH is an old, well respected name. Readers should know that the complaints about excessive hum is most likely caused by a bad cable running to subwoofer, and NOT by the subwoofer itself. Also, about the complaints about distortion when running at high volume: this is going to happen with a < $300 subwoofer! These low cost subwoofers are appropriate for computer systems, desktop stereos, and low-cost home theaters. Don't expect high end sound from this class of speaker. In fact, these are not really subwoofers in the true sense of the word. Better look at Velodyne, Definitive, Bag End, Linn, Ariel Acoustics if you want a true high quality subwoofer. Be prepared to spend the bucks too! There is a saying in high end audio: the bottom octave is the most expensive.
Rating: 
Summary: Dang, Belongs as One of the Greats!
Review: I hooked this subwoofer up to my 160 watt Aiwa, and it makes every single song I have 100 times better. This bumps my phone off of my shelf! Amazing power for a 120 watt subwoofer, especially with my 60 watt built in subwoofers. A definite 5 stars if your budget is under $160.00! I reccomend it to anyone looking for some serious bass!
Rating:
Summary: Very impressed.
Review: I picked this up as an open box item at Best Buy for 89 bucks. I needed something to go with my new Sony DTS/Digital system. I got more that I expected. I hooked it to the line level sub connection of my reciever. After playing with the settings I played a CD. Incredible. Now time to test it for what I bought it for. I popped in a movie and was totally blown away. Explosions shook the pictures on my walls. My kids nearly jumpped off the couch. This was great. I feel like a kid with a toy. My buddy spent tons more on a system and I don't hear much of a diff. I highly recomend this sub.
Rating:
Summary: Sounds Great
Review: I purchased the asw 10-120B at costco for 99 dollars and am very happy with it it doesnt have the humm and it is not real boomy but it helps to put a sock in the bass port. i read all of the other reviews and was sceptical about buying it but I already own some KLH model 4132 loudspeakers and am very happy with them. This sub is perfect because i have a 15 watt per channel reciever and it can still get to thunderous levels. I looked inside the sub and its got some acoustic filling and the port is plastic rather than cardboard And the thing others said about it not being loud was not true either I got the crossover at 90 and the volume at 5 and it shakes the walls. definetly worth the money.
Rating:
Summary: A great product for the price
Review: I searched the internet and offline stores for a new subwoofer to finish off my low cost home theater setup. I ended up purchasing it from costco for $99 (list price: $290). The KLH-ASW10-120 is the best subwoofer you can buy for the price. You wont find a ten inch driver paired with a 120 watt amp for less anywhere. i have read that this model outputs a hum and is not loud until you turn it up all the way. I found it to be just the opposite. This woofer produces great deep and tight bass and at times a rumble that you can feel but not hear(at half volume), it's great. The woofer is great because you can tweek all of the settings to match your equipment setup perfectly (not to boomy and yet enough to rock the room). Pair the woofer's settings with the setup on your reciever and you can achieve great sounding results. this model also offeres such niceties as: auto on/off, phase inverter, frequency response selector, and speaker and line level inputs (making it compatible with basically any home theater system). I also found the quality to be high (solid box). I have not experienced any of the sortcomings the others have written about. It is just what I was looking for, great sound for a great price.
Rating:
Summary: low price but also low quality
Review: I shopped around for a subwoofer to replace my overly-large Audiosource SW15 and settled on this little KLH. I have been a fan of KLH, as they put out (usually) good sounding speakers for a very good price. In the store (Best Buy) the ASW10 sounded good, but I guess they set it up so everything does. When I brought it home, the first thing I noticed was that this sub doesn't put out much sound- not even in a corner of a small room. I have a modest 100 watt/channel receiver with front/rear speakers, and my new sub has to work hard to keep up in volume. Since I need to put the crossover frequency and volume levels near max, I can't turn up my receiver volume past half-way, else the KLH sub would blow. There is also a rattling, sputtering sound that comes out of the bass port at high volumes (like the exhaust of an old car). This is a design flaw that we consumers can't fix. I agree that this paticular sub would work well on smaller systems and shelf systems where it doesn't need to be turned up to max, but it just can't keep up with full-sized stereos. I'm not sure if any other 10-inch sub could, and I'm not going to plunk down hundreds of dollars for an Infinity, Velodyne, or Polk to find out. I'm hanging onto this little KLH for a bit, but I'm already looking for a replacement. I wish I had gone with a medium-priced 12 inch sub, rather than this cheap 10 inch model.
Rating:
Summary: A decent supplement for a pair of bookshelf speakers
Review: I'm using this with some pretty decent full range bookshelf speakers that get close to 50HZ (NHT 1.3). While there are certainly better subwoofers this product did manage to improve on a good set of speakers with relatively little expense. Keep in mind though that my listening room is fairly small so I'm not really pushing this subwoofer hard. At first, I found it really difficult to get the level right in the 30-50HZ range. What was all right with Wilson Pickett was came accross as a terrible wolf-note when the pedal harpsicord cut in in the Brandenburg Concertos. What finally worked was playing some music with lots of mid-base, setting the cross-over frequency to 150HZ and running the gain up from zero until I judged the mid-base material to be about 3 dB louder than with the main speakers alone. I then used my speaker switches to alternate between the subwoofer and the main speakers to check that they were at the same level in the mid-base. I then ran the cross-over back to 50HZ, and put on some material that went further into the low base. This resulted in even sound over a wide variety of of music, levels, and tone-control settings.
Rating:
Summary: Great Bang for the Buck
Review: I've found, especially with audio systems, that price doesn't always determine quality. You have to base your choices on what you want the equipment to do, how you are going to use it, and how much you can get for the money (obviously). I bought a KLH ASW10-120 nearly a year ago to boost the bottom end on a Sony/Marantz Home Theater system. It has not only turned out to be the perfect choice (At a substantially cheaper price than the JBL unit I was considering), but it actually helps put to shame a much more expensive system in the next room! If you know nothing about audio and are intent on spending too much just to impress someone, there are always plenty of overpriced alternatives. If you have only your ears to impress, and want great bass end support for your Home Theater system at a great price, this is it. I've found no hum, plenty of volume, clean sound, low price, and excellent reliablity. Can it be "smoked"? Maybe, but I haven't done it yet, and I can't blame the device for operator problems!
Rating:
Summary: Great sub worth more than what it is!
Review: I've had this sub for a couple months and have been completely happy with it. I have done some minor mods on it though. Use a good sub cable to get rid of hum. And some stuffing in the box will get rid of that boxy rumble sound it can give. I've done this and been happy to know that I saved quite a bit of money for a good product. There are pros and cons about this sub, as with any speaker. Some of the bad stuff is that it could be louder. It's plenty loud, but when cranked it just moves the woofer more instead of getting louder. And there is some port noise at higher volumes, but it's usually unnoticeable unless it's cranked on something with a lot of bass. And that's about it for the bad stuff. Everything else seems just fine. Gives some real kick to my wharfedale speakers and makes movies better. I recently bought a new reciever, and it made the sub sound twice as good, I don't even notice it's there anymore, it blends in so perfectly. But that's what I get for buying an aiwa reciever:( And I got mine at costco, and they said that they've never had anybody bring them back for bad sound, and only a couple for them blowing up. So I wouldn't worry about it too much. The people that usually blow things like that are the ones who put the crossover all the way up and crank the volume expecting too much from it. Then they rush here to put 1 star in to screw things up. But as far as this sub goes, don't expect to dj with it, but for average home use, it's perfect, and is plenty loud for nearly all tastes. .... With all that said, I highly recommend it for a lower cost sub.
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