13 in - 14.9 in Separate Speakers

The Bottom Line: In addition to delivering solid sonics, the Zvox Z-Base 550 sets itself apart from competing single-speaker units with the unique capability to double as a stand for your TV.

Specs: surround sound speaker, 28 in x 14.5 in x 3.4 in, Black, Active

The Bottom Line: Flexible configuration, a full list of features, and solid bass performance gives the Polk Audio DSW Pro 400 a leg up on similar-size subwoofers.

Specs: subwoofer, 13.7 in x 13.7 in x 14.6 in, Black, Active, 180 Watt

The Bottom Line: The able Polk Audio PSW111 subwoofer delivers seamless bass despite its compact size.

Specs: subwoofer, 11 in x 13 in x 12.1 in, Black, Active, 150 Watt

The Bottom Line: Zvox's "sound console" is a virtual home-theater speaker system in a box.

Specs: 17 in x 14 in x 4.5 in, Black, Active

The Bottom Line: The Diamond SW150 is the perfect match for Wharfedale's excellent towers and nimble satellites.

Specs: subwoofer, 13 in x 14.6 in x 13 in, Beech, Active, 10 KOhm

The Bottom Line: The Diamond SW150 is the perfect match for Wharfedale's excellent towers and nimble satellites.

Specs: subwoofer, 13 in x 14.6 in x 13 in, Silver, Active, 10 KOhm

The Bottom Line: The Diamond SW150 is the perfect match for Wharfedale's excellent towers and nimble satellites.

Specs: subwoofer, 13 in x 14.6 in x 13 in, Black ash, Active, 10 KOhm

The Bottom Line: The Diamond SW150 is the perfect match for Wharfedale's excellent towers and nimble satellites.

Specs: subwoofer, 13 in x 14.6 in x 13 in, Rosewood, Active, 10 KOhm

The Bottom Line: The Diamond SW150 is the perfect match for Wharfedale's excellent towers and nimble satellites.

Specs: subwoofer, 13 in x 14.6 in x 13 in, Cherry, Active, 10 KOhm

The Bottom Line: If you have the room to indulge your home-theater fantasies on a grand scale, Infinity's Beta towers merit serious consideration.

Specs: floor-standing, 10.4 in x 14.6 in x 41.3 in, Cherry, 3-way, 8 Ohm, 91 dB