Definitive Technology Sound CylinderPrice: $199

Website: www.definitivetech.com

Ian said: Regardless of what I threw at it, Definitive Technology’s Sound Cylinder was engaging with all types of music -- everything from Green Day, Adele, Daft Punk, and Bill Frisell to Dvorák and Copland. It may not unravel layers of detail like a pair of KEF LS50s or Dynaudio Focus 340s, or even offer the bass response of a pair of entry-level monitors like the PSB Imagine Minis, but it’s pretty obvious that somebody forgot to tell it that.

Reviewers' Choice

Read the SoundStage! Xperience review.

The gist: Highly potent little add-on for your tablet computer.