As an iPhone owner, I’m familiar with the Griffin line of iPod/iPhone/Apple accessories. I’m also familiar with the shortcomings of the iPhone’s speaker, and that holding or cupping your hand around the speaker port will enhance (or at least change) the sounds coming from it. A friend of mine even suggested building a wave-guide to enhance the sound from the iPhone speaker. Griffin has done just that with its passive amplifier dock, the AirCurve. The iPhone sits in this plastic dock that has an acoustic wave-guide positioned directly under the speaker port. Modeled after the human ear canal, the waveguide amplifies and equalizes the sounds before ejecting them out the front of the device. It is completely passive and requires no batteries.



Link: Maximum CPU