I use a "Rythmik" L12, bought after quite a bit of research. For a sealed 12" speaker I don't think its value can be beat and it can be made to operate seamlessly with almost any speaker. It is heavy for, among other things, it has a transformer powered amplifier rather than a switching one as in most of its competition. Very happy with the choice. As I use it for music, just one, it is subtle and visitors are unaware that I'm using a sub-woofer.
That being said, as compared to the SVS, the consumer pays for return shipping and these things are heavy. Also, because of the amplifier used in it, the "auto" power function is unusable in my system and, even where usable it saves very little energy. So I just leave it on. As the designer says, it is definitely not "green."
That being said, as compared to the SVS, the consumer pays for return shipping and these things are heavy. Also, because of the amplifier used in it, the "auto" power function is unusable in my system and, even where usable it saves very little energy. So I just leave it on. As the designer says, it is definitely not "green."