Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: What is the size L W H of the subwoofer
Document: This product was easy to hook-up, and has terrific sound for its compact size and cost. Broad range for remote control operation. This was a very good purchase, and I would recommend this to anyone desiring a economical upgrade from your standard widescreen TV sound system. Nice subwoofer.
Regardless, it does what it is designed to do. I am hiding all of my components in a closet so the positioning of the subwoofer isn't an issue but after seeing the size of it I can understand the issue this giant piece of equiptment has caused other reviewers. Also note, those mounting on the wall and running cables...this set up has a decent 10' cable that ties the woofer with the speaker bar.
I liked this product when I read about it. When I got it, I was surprised, and maybe a little disappointed, that the subwoofer was huge, about the size of a desktop computer tower. The other thing I was not happy about is that I was not sure what I needed to order for cables versus what was provided. FYI the only cable provided is a 2-meter or so optical digital audio cable. For the rest, you are on your own.
This product works fine for those lcd tv's most of which have inferior sound systems - it provides good sound and a powerful subwoofer for an extra bedroom or office, but do not expect the same results in a living room of any size. Also, note that it has only a digital input for tv output, no optical input, which is standard now for these type of devices. Makes you wonder when it was first created! You may have to buy a digital connector.
The matt black plastic sound bar is petite both in height and depth so its not too difficult to accept. The subwoofer though is just about ugly. And its big. The reviews that say its the size of a desktop pc are right on the money even down to the fan exhaust on the back. But how does it sound?Actually pretty good extended high frequencies, nicely balanced midrange w/ good presence and depth, not the least bit nasally.
The Sony HT-CT100, just recently introduced, fit the bill perfectly and comes at a price much lower than the Yamaha and Philips soundbar systems with optical inputs.The Sony HT-CT100 produces great sound. The speaker bar is very low profile and takes up very little space whether you sit it in front of the TV or hang it on the wall. The subwoofer is large (about the size of a desktop PC) and sits on the floor.
In terms of space savings and ease of setup, the system is great. Three HDMI inputs, with a single output to the TV, is exactly what I needed. (Note that you need to run an optical sound line [cable included] back from the TV to the subwoofer in a configuration like this.) The sound "size" is also perfect for me:  I'm in an apartment, and this gives a rich, full sound with deep bass without annoying the neighbors.
I was a little worried about the size of the speaker in front of my Samsung LCD 750 tv, but it isn't a distraction. It is barely visable while watching tv. The subwoofer/amp/switcher is rather large but it really handles all the audio signals- DishDVR, oppo 983h dvd player, PS3. This system has good performance for the price and it get's 5 stars with ease, considering it is not a real 5.1 wall mounted speaker system.
Both the sound bar and the subwoofer have clean lines and a simple black color. The soundbar is one of the thinnest ones I have seen and the subwoofer is roughly the size of a small PC CPU (it is important to note that the subwoofer must be placed on the right side of your setup and must have 30" of clear space for it to project base properly). The remote is simple to use and uses infra-red, rather than radio frequency, for communication with the system.
I realize to get this system at this price point Sony had to sacrifice something, but you should know going it you can't really equalize the sound field -- you can only use their presets: Movie, Sports, Music, etc.. which is annoying but okay, something had to go. The only other thing I would add (esp if Sony reads these things) is that I wish this system came w/ various size subs -- I would have liked to get a bigger subwoofer.
Answer: Looking at side with the base port to the front & speaker to the right as shown in the picture, the subwoofer is 6 1/2 " wide X 19 1/2 " high X 14 1/4 " deep.