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

Input:
Question: Does this sub work well if placed in a closet or closed cabinet?
Document: Don't ask. I don't need or want a prelude to an enema. Again, music is my interest, mostly classical, but reaching down as far as heavy metal, as well.It is also attractive in piano black, compact and works well, placed just about anywhere. The key controls in front is helpful, especially when I deign to put on a movie and have to make adjustments. Their positioning makes life easy.
I am going to try this little sub out in my home theater system to see how well it performs. If I feel the need for a little more I may just purchase the larger YST-SW315 based upon the performance of this little unit. At this point I could not be much happier considering the performance and what I spent ($160)...great value. And to top it off, the piano black finish looks great.
Easy access to controls from my chair if needed is a plus and the port is not near a wall so no boomy or muddy sounds. I have always liked and used Yamaha amps and the idea of the Yamaha Active Servo Technology on their subs, but never purchased one. The bass from this sub is deep, clear and tight from the well controlled 8 inch woofer. This system is a music only system from which I listen to Pandora, YouTube (music) and CD's.
This is $$$ well spent and Yamaha has another satisfied customer.
I've had this SW for about three years now and have been very satisfied with its output. The other day though, while watching an action BD, I noticed there was no bass. Disconnected the SW from the receiver in the living room and connected it to another receiver in another room; still nothing. I've read there may be a fuse that can be replaced? Haven't had time to check yet, but as of now I have a three year old Yamaha SW that doesn't work.
I wish I would have bought a bigger YAMAHA sub. YST10 or YST12. Or the BIC 1220 I have been looking at for the past year.
I buyed this sub in Adorama.com, because Amazon is unable to send this to M&eacute;xico, this little guy have big performance in my 13x13 room, I'm very impressed by the clear and big have bass that this guy makes, I'm a rock fan with technician skills, Yamaha will not disapointed to you, definitively is a very good purchase, not five I give 10 stars to Yamaha !!!!!!! !
I do not think I could have done much better at this price point for what turned out to be a very musical sub of this size. I know I could have spent much more for a small sub that I needed for my small space, but doubt it would have performed much better. I am not sure how it would perform in a full home theater, but I guess it would depend upon the size of your room.
I originally had a front firing Yamaha Sub. and replaced it with this one. The great thing about this sub is that it has great features and options which make it energy efficient and adjustable for various front and rear speaker selections. (adjustable htz high cut, auto shut off etc.) Personally I like the front firing Sub for Music and I like the downward firing sub for Video and Video games.
I got this unit about 2 months ago and have thoroughly enjoyed it. I am using it with a jbl on time clock radio/ipod speaker system and it sounds great. The controls are easy to get to and you can get a variety of different sounds from deep sub bass to more musical mid bass. The only draw back that I could find would be the the volume of the unit. It is perfect for my application but if I was using it for my home theater it might not be powerful enough.
Answer: Probably not.  It's design is for open air, and the great thing about this sub is its clear bass.  You would get some level of thump inside a closed space, but no quality lows.