17 in - 20.9 in Separate Speakers

The Bottom Line: The Klipsch Synergy Sub-12, the company's most affordable 12-inch subwoofer, sounds great on music and movies.

Specs: subwoofer, 15 in x 19.9 in x 18 in, Black, Active, 300 Watt

The Bottom Line: The Aperion S-10 subwoofer is a winning combination of rock-solid construction, impeccable furniture-grade finish, and seismic, room-shaking performance.

Specs: subwoofer, 13.3 in x 19 in x 17.5 in, Cherry, Active, 200 Watt

The Bottom Line: Klipsch's Synergy Sub-10 is powerful and musical, and that's not something you always find in midpriced subwoofers.

Specs: subwoofer, 14 in x 18.9 in x 17 in, Black, Active, 115 dB, 200 Watt

The Bottom Line: M&K's powerhouse subwoofer pumps out bass oomph that poseur subs will never touch.

Specs: subwoofer, 15.4 in x 20.2 in x 18.5 in, Black, Active, 75 Watt

The Bottom Line: This robustly built subwoofer's performance is far from state of the art, but the price alone makes it worth considering.

Specs: subwoofer, floor-standing, 12.3 in x 16.5 in x 18.5 in, Active, 150 Watt

The Bottom Line: Mirage's midpriced subwoofer is the ideal match for its Omnisat satellites.

Specs: subwoofer, 14.7 in x 18.5 in x 17 in, Black, Active, 200 Watt

The Bottom Line: Hsu Research's most affordable subwoofer sings with micro satellites.

Specs: subwoofer, 10 in x 16 in x 19 in, Active, 150 Watt

The Bottom Line: Klipsch's midline subwoofer delivers room-shaking bass.

Specs: subwoofer, 12.5 in x 19 in x 17.6 in, Black ash, Active, 280 Watt

The Bottom Line: The E250P's well-defined bass rocks on home theater and music.

Specs: subwoofer, 14.4 in x 16.5 in x 19.8 in, Active, 250 Watt

The Bottom Line: This beautifully finished sub is too pretty to hide in a corner, and it sounds great, too.

Specs: subwoofer, 12 in x 14 in x 18 in, Active, 150 Watt