AirPort Express features the ability to stream music across your network and into a stereo receiver. Using the 1/8-inch jack, tunes can be relayed to your best music gear. The Twenty Audio Amplifier allows you to directly connect speakers to the AirPort Express setup. So no receiver needed, but you do still need to get an AirPort Express.
The Twenty Audio Amp features 2.1 amp for 20 watts per channel and a subwoofer output. The system autos witches between 2.1 and stereo when a subwoofer is detected. The amp also accepts other inputs via S/PDIF optical and TOSLINK, so you could maybe hook up your TV or DVD/BD player, for example. Volume control is handled via a big knob on top. It's definitely a unique product.
Below is a hands-on video of the pre-released product at CES in January.
