CNET también está disponible en español.

Ir a español

Don't show this again

Altec Lansing inMotion iM4 review:

Altec Lansing inMotion iM4

  • 1
MSRP: $99.95
Compare These

The Good Excellent sound; portable music players fit nicely on the rubberized base; retractable minijack cord; speakers tilt at any angle; can be powered with batteries.

The Bad No remote control; slightly large and heavy compared with other small speaker sets.

The Bottom Line The Altec Lansing iM4 finally delivers the bass we've been craving in small portable speakers, and they're not iPod-centric, so you can use them with any MP3 player.

Visit manufacturer site for details.

CNET Editors' Rating

7.3 Overall
  • Design 7.0
  • Features 7.0
  • Performance 8.0

Music to go: Altec Lansing iM4

We like big bass when it comes to our tunes, and the Altec Lansing inMotion iM4 finally delivers the low-end sound we've been craving in small portable speakers. While it's slightly larger and heavier than other small speaker sets we've tested, it leaves its predecessors, including the nicely designed but anemic-sounding and expensive iM3, in the dust with its robust, sonic performance. At $100, the iM4's price is right.

Measuring 10.3 by 5.3 by 1 inches, the folded-up inMotion is roughly the size of a slim hardcover book, and at 28 ounces, it's a little heavier than other portable speakers in its class. The twin speakers swing open in a smooth, firm motion, and you can tilt them at any angle, up to 180 degrees from the base. The power switch and the volume slider sit on the curved front section, while behind the base, you'll find an AC input, a minijack port, and a minijack plug on a retractable cable. There isn't a custom dock for an iPod, but our 20GB model sat comfortably atop the rubberized base. You can also plug the iM4 into your laptop with the included minijack-to-minijack cable. All that's missing is a remote control--a disappointing omission, given that the iM3 comes with a nice, wafer-thin remote that slid right into the assembly.

We were pleasantly surprised by the Altec Lansing inMotion iM4's full-bodied sound. In our experience, fold-up, portable speakers usually can't hack it when it comes to bass (the iM3 comes to mind, actually), but the iM4 delivered rumbling lows and crystal-clear high notes--impressive, considering the speakers' small size. We dialed up Led Zeppelin's Physical Graffiti, and the iM4 cranked out the thumping bass and soaring strings of "Kashmir" without skipping a beat, even when we turned up the volume to ear-splitting levels (very nice). The iM4 can also power from four AA batteries for a promised 18 hours of sound.

  • ELAC Uni-Fi UB5

    Starting at: $449.00

    The ELAC Uni-Fi UB5 shattered our expectations for the sound quality we could expect from...

  • LG SH7B

    Starting at: $364.22

    The LG SH7B proves how far affordable sound bar/wireless subwoofer systems have come,...

  • ELAC Debut B6

    Starting at: $279.98

    The ELAC Debut B6s offer sound quality that beats speakers that sell for more than double...

  • KEF Q350

    Starting at: $649.99

    This bookshelf speaker seems much more expensive than it really is.

  • Emotiva Airmotiv T1

    Starting at: $349.50

    The Emotiva Airmotiv T1's dynamic sound will appeal to budget audiophiles hankering for...

This week on CNET News

Discuss: Altec Lansing inMotion iM4

Please log in to CNET to comment
Post Comment As...