21 in - 28.9 in Separate Speakers

The Bottom Line: Cambridge's radical design in its Newton Series P300HD Powered Subwoofer delivers extraordinary performance.

Specs: subwoofer, 8.5 in x 17.5 in x 27.2 in, Active

The Bottom Line: Klipsch's new trim speaker can provide the basis of a good-sounding--and good-looking--stereo or surround-sound system.

Specs: wall-mountable, 5.5 in x 4.8 in x 25 in, Silver, 2-way Passive, 8 Ohm, 95 dB, 100 Watt

The Bottom Line: These foldable speakers will bring life--and a lot of music--to any gathering. Despite light bass and some distortion at high volumes, we were impressed with what we got for the inexpensive price.

Specs: 20.9 in x 17.7 in x 28.3 in, Active, 8 Ohm

The Bottom Line: The LFM-1 is simply the biggest, baddest, and best-performing midpriced subwoofer we've ever heard.

Specs: subwoofer, 15 in x 22 in x 21.7 in, Active, 325 Watt

Specs: 5.4 in x 4.3 in x 25.2 in, Polished black, 2-way Passive, 8 Ohm, 89 dB

Specs: satellite speaker, 9.8 in x 4.9 in x 21.9 in, Gloss black, 3-way Passive, 8 Ohm, 88 dB

Specs: 9 in x 17 in x 23.6 in, Black, 2-way Passive, 4 Ohm, 92 dB, 200 Watt

Specs: 18.1 in x 15.7 in x 22.8 in, Passive, 8 Ohm, 95 dB

Specs: in-wall mounted, 7.7 in x 3 in x 23.4 in, 2-way Passive, 6 Ohm, 88 dB, 40 Watt

Specs: 9 in x 3.5 in x 23.7 in, 3-way Passive, 8 Ohm, 91 dB