Audiophiles eager to get their mitts on iRiver's Astell & Kern-branded AK120 shout take note: the portable Mastering Quality Sound player just passed through the FCC's labs. The $1,300 AK120 is the bigger, 2.4-inch sibling to the $700 AK100, promising to net deep-pocketed audio perfectionists improved stereo imaging and dynamic range; this is achieved by two
