When Altec Lansing introduced the original inMotion, it set new standards for sound and size and let a whole lot of music out of the iPod. Now Altec Lansing raises the bar again with an innovative and performance-leading new model. The Altec Lansing iM600 sound system offers stereo sound from dual 2-inch neodymium drivers optimized for high-frequency extension (better highs, in other words). It offers more power and output than any other system in its class and, what’s more, it features another Altec Lansing engineering innovation called the Stereo Field Expander: SFX for short. SFX makes the speakers sound further apart than they really are, giving the user a heightened stereo effect.