Is the music from your iPhone sounding a little lifeless? The Vamp could bring your audio back from the dead with a built-in headphone amplifier and digital-to-analog converter (DAC) that bypasses the iPhone's audio circuitry.
Designed for Apple's iPhone 4 and 4S, the Vamp is also a very solid-looking case that's made from "aircraft-grade metal." Inside, there's a high-quality DAC and two 150mW amps (at 32 omhs) to drive headphones of various sizes. A rechargeable 2,200mAh battery powers the setup for up to 8 hours, which isn't very impressive for a high-end headphone amp.
It also serves as a backup battery for your iPhone, which will undoubtedly leave you with even fewer hours of music.
Other cool features in the Vamp include an optical audio output, which will come in handy when hooking up a hi-fi system, as well as two audio modes. The Pure mode is meant to reproduce audio naturally, while the VQ mode widens the soundstage while adding bass and treble enhancements.
This all-in-one package may sound like a godsend for portable audiophiles, but its price may give you pause. At $650, this amp is more expensive than many high-end portable varieties by brands such as ALO Audio and HeadAmp.
However, you do get a very attractive package here that should appeal to those who liked V-Moda's True Blood V-80 headphones.