John Atkinson is a road warrior: When he attended the DC area’s Capital Audiofest in July of last year, he drove there in his vintage Mercedes-Benz coupe, all the way from his home in Brooklyn. He did the same in 2011, too.

Because I regard night driving with the same revulsion that Dothraki horsemen reserve for travel by sea, and because any round trip between upstate New York and our nation’s capital is bound to include at least some driving after dark, I took the train.

Apple's iPod came of age in the fall of 2003, when, with the release of iTunes 4.5, the player was no longer restricted to lossy compressed MP3 or AAC files. Instead, it could play uncompressed or losslessly compressed files with true "CD quality"; users no longer had to compromise sound quality to benefit from the iPod's convenience.

Enter Astell&Kern. At the beginning of 2013, this brand from iRiver, a Korean portable media company, introduced its AK100, a portable player costing a dollar short of $700 and capable of handling 24-bit files with sample rates of up to 192kHz.