zvex imp amp stereo amplifier price : $619.00

the world's smallest tube hi-fidelity stereo power amp. the imp is intended for use with small sound sources such as ipods, phones, and laptops to power passive monitors. perfect for your office...you can put the imp amp right on your desk with bookshelf speakers and have a miniature tube hi-fi setup for your ipod! 1 watt per channel.

download the instructions here.