JDS Labs' overachieving headphone amplifiers
John Seaber started JDS Labs in 2007 with the cMoyBB headphone amp, which is based on an open-source design. Seaber revamped the cMoy's power supply and volume control, added a DC power jack, and a special bass boost switch. The tiny amp sold well and got the company off the ground. The cMoyBB is still being made, in an Altoids tin box, and currently sells for $60. Seaber is 26 and has an electrical engineering degree from Missouri S&T University.
The JDS Labs Objective2 (02) sells for $144, and it's equally adept with full-size and in-ear … Read more