Continuing its line of universal fit, consumer-ready earphones, Westone's new Westone 2 ($249) has the same shape and general look as the predecessor model Westone 1, but ups the internal components to include twin drivers in each of the black earpieces, and swaps the green "1" badging for blue "2" icons. The performance jump from single- to double-driver hardware should result in a noticeable improvement in clarity, as well as some improvement in…