Yesterday, iRiver released firmware update version 1.30 for the AK100, which adds support for AAC, ALAC and AIFF files, which is great news for Apple iTunes fans!The AK100 alreay supports Mastering Quality Sound (MQS) lossless audio playback -- along with support for MP3, Ogg, FLAC, WAV, WMA and APE codecs, among others. If you’re willing to spend $700 – you can hear your iTunes library in a whole new way thanks to the Wolfson WM8740 Digital-to-Analog Converter (DAC) which iRiver claims will deliver digital tunes the way they’re meant to be heard!

iriver AK100

The Astell&Kern is the world's first portable audio device equipped with the Wolfson WM8740 Digital-to-Analog Converter (DAC). It contains 32GB of internal memory and can be expanded via two microSD card slots, each supporting an additional 32GB microSD card. The Astell&Kern is compatible with FLAC, WAV, WMA, MP3, OGG, APE, AAC, ALAC and AIFF audio files. Its 2,000 mAH battery provides up to 16 hours of playback on a single charge. The Astell&Kern offers numerous connection options, including micro-USB, optical in/out and headphone out.