Fiio E9i Desktop Headphone Amplifier for iPod/iPhone, 10Hz to 100KHz Frequency, USB Interface

The Fiio E9i Desktop Headphone Amplifier with iPod Dock is designed to work with the Apple iPod and iPhone. It features dual-channel power outputs for both 1/4" and 1/8" headphone plugs, as well as an additional RCA L/R audio output, USB interface and line input. The amplifier features a Texas Instruments main power amp integrated circuit with a low noise level, low distortion and a high conversion rate.

The E9i is cleverly designed with an iPod/iPhone dock for using the line out signal from the Apple 30-pin docking port. This provides better sound quality and makes the amp able to drive high impedance or low sensitivity headphones - giving you the clarity and punch to make your music sound alive and vibrant. Plus, it lets you charge and sync your iPod or iPhone with your computer as well. The E9i even has a Low/High gain section switch, LED power indicator and a built-in power converter to meet the demands of high dynamic signal processing.