Griffin has launched Twenty ($100), a digital audio amplifier that uses AirPlay to connect the AirPort Express — or any digital audio source — to speakers. First seen at this year’s CES, Twenty basically turns any set of speakers into an amplified AirPlay wireless system.
Featuring 2.1 channel sound, Twenty provides connections for left and right channel speakers along with an RCA connector for a powered subwoofer. Although specifically designed to dock the original Airport Express, Twenty works with any compatible digital audio source.
It is currently available..