Alesis AmpCase: AmpCase receives a direct injection of unadulterated, noise-free audio directly from your iPhone's 30-pin dock connector. This unrestricted and uncolored signal enables you to enjoy the full dynamic range of any song. Alesis DSP technology pushes the best output to your headphones, with improved presence, punch and power.
If your new iPhone is too high tech looking, try a case that transforms it into a reproduction of the 2001 iPhone that complemented the brightly colored iMacs. This case simulates the iMac speaker, stereo headphone plugs and power button over a translucent body shell.