(Buy.com (dba Rakuten.com Shopping))Price: $124.99
The Sub10D Down Firing Subwoofer was designed to provide both seamless acoustic integration with a variety of speaker setups for both music and home theater applications. The Theater Solutions SUB10D is compact and perfect for medium sized rooms. Theater Solutions subwoofers have been solid performers with excellent components. This home powered subwoofer is made to be affordable, but don't underestimate it's performance and capabilities. The specially built in cabinet amplifier has high level left/right spring terminal inputs. The 24db per octave crossover is continuously variable from 25Hz-150Hz. The built-in Eco-auto shut off helps conserve energy, if two minutes goes by and sub does not receive a signal it switches to stand-by mode to conserve power and your pocket book. Volume and crossover frequency dials round out the special features on this super powerful subwoofer. The 10 inch long throw bass down firing woofer has a frequency response of 25-150 Hz +/- 2db. The port design smooths air flowing in and out of the cabinet, reducing turbulence and port noise. The ports also increase linearity, lowers distortion, reduces 5th order harmonic distortion and provides an increased output as high as 2-3 db. The Sub10D also offers a black wood finish, cabinet feet, 115 AC cord, and includes RCA cables and RCA Y adapter.
(Buy.com (dba Rakuten.com Shopping))Price: $128.88
This is from Acoustic Audio's line of Home Theater Series subwoofers. No one knows bass better for home theater systems than Acoustic Audio. This has a down-firing long throw sub with a Poly Zirconium cone for 30% more controlled bass. It also has a 400 WATT built-in Digital Drive high efficiency amplifier housed in an Advanced RFL Bass Reflex cabinet with a slot port. Because of the high-impact low frequency response this sub can produce dead accurate bass from 24Hz - 200Hz. It has an adjustable gain control and a variable crossover so you can perfectly match the bass response with your speakers. The high and low inputs let you use any receiver or amplifier. The black ash cabinet fits with any decor.