I wasn’t a fan of Harman Kardon’s Soho headphones when they debuted a year ago, but the reason was unusual: they were seriously uncomfortable. Soho was a much smaller, wired version of Harman’s gigantic Bluetooth wireless headphone BT, notably using relatively tiny 30mm speakers instead of the 40mm drivers found in BT and many rivals, including Beats’ Solo 2 and Solo 2 Wireless. […]