Altec Lansing InMotion iM7 The Altec Lansing iM7 offers good sound quality, flexible listening options, and handy features, making it a solid choice for any iPod owner in the market for a complementary sound system.
Specs: portable speakers with digital player dock, White, Active
Altec Lansing inMotion iM510 speakers for SanDisk Sansa The Altec Lansing inMotion iM510s offer sweet sound in a portable package for Sansa users.
Specs: portable speakers with digital player dock, 8.4 in x 2.1 in x 3.8 in, Active
Logitech Pure-Fi Anywhere (black) It may not be the most compact portable speaker on the block, but the Logitech Pure-Fi Anywhere offers useful extras and great sound for an affordable price.
Specs: portable speakers with digital player dock, 13.2 in x 1.5 in x 3.6 in, Piano black, Active
Griffin Amplifi Speaker System w/ iPod Dock The aptly named Amplifi has a singular purpose--getting your iPod to really crank without putting a hole in your wallet.
Specs: Active
Klipsch iGroove SXT Klipsch's entry-level iGroove SXT iPod speaker system may be short on features, but it delivers a big, muscular sound considering its compact size.
Specs: portable speakers with digital player dock, 12 in x 4.6 in x 4.8 in, Black, 2-way Active
Logitech mm50 Portable Speakers for iPod (white) The Logitech mm50 Portable Speakers for iPod are useful and affordable--and they sound good, too.
Specs: portable speakers with digital player dock, White, Active
Bose SoundDock (black) If you don't mind the high price and lack of an auxiliary input, the Bose SoundDock will turn your iPod into a nice bedroom or office stereo system.
Specs: portable speakers with digital player dock, 11.9 in x 6.5 in x 6.7 in, Black, Active
Altec Lansing T612 While it's missing a couple of key features found in competing models, the T612 distinguishes itself with a sleek design, decent sound, and some mobile phone anti-interference technology that makes the system particularly appealing to iPhone owners.
Specs: portable speakers with digital player dock, 13.9 in x 5.4 in x 8.2 in, Active