All Audio Shelf Systems

The Bottom Line: The Polk Audio I-Sonic ES2 pairs the same excellent sound as its predecessor with an improved design--but we would've liked more features at this price.

Specs: Speakers, Stereo, Remote control, 14.5 in x 9 in x 4.8 in

The Bottom Line: While the Denon S-52 is chock-full of impressive features, its subpar sound quality makes it hard to justify the steep asking price.

Specs: Micro system, Stereo, 20 Watt, AAC, MP3, WAV, WMA, FLAC, Network audio player -, MP3, Remote control (Infrared), 15 in x 8.7 in x 5 in, 13.9 lbs

The Bottom Line: The inclusion of a CD player makes the Cambridge SoundWorks Radio CD 745i easier to recommend than its discless step-down model.

Specs: Clock radio, Stereo, Remote control (Infrared), White, 14 in x 9.8 in x 5.2 in, 11.9 lbs

The Bottom Line: The inclusion of a CD player makes the Cambridge SoundWorks Radio CD 745i easier to recommend than its discless step-down model.

Specs: Clock radio, Stereo, Remote control (Infrared), Black, 14 in x 9.8 in x 5.2 in, 11.9 lbs

The Bottom Line: The Delphi Premium Sound System is a nicely flexible portable boom box that will satisfy XM satellite radio owners with a hankering for bass.

Specs: 8.3 in x 15.7 in x 7.8 in, 9 lbs

The Bottom Line: The Sony CMT-DH7BT shelf system features Bluetooth connectivity, a DVD player, and XM-ready functionality.

Specs: Micro system, Stereo, Network audio player -, Remote control (Infrared)

The Bottom Line: The Sony CMT-HX7BT shelf system features Bluetooth connectivity, MP3 playback, and XM-ready functionality.

Specs: Micro system, Stereo, Network audio player -, Remote control (Infrared)

The Bottom Line: The Sony CMT-BX5BT shelf system features Bluetooth connectivity, MP3 playback, and a CD player.

Specs: Micro system, Stereo, Network audio player -, Remote control (Infrared)

The Bottom Line: The Tivoli Audio Music System sounds good and looks great, but its lack of any advanced features will make the sky-high price tag hard to swallow.

Specs: Radio tuner, CD player, Remote control, 14.125 in x 8.5 in x 5.375 nm

The Bottom Line: The Tivoli Audio Music System sounds good and looks great, but its lack of any advanced features will make the sky-high price tag hard to swallow.

Specs: Radio tuner, CD player, Remote control