JDS Labs is an American audio electronics company based in Collinsville, Illinois, specializing in headphone amplifiers and digital-to-analog converters. The company was founded in 2007 by electrical engineer John Seaber, who began by modifying Chu Moy's open-source pocket headphone amplifier design and selling spare builds on eBay under the "cMoyBB" name. JDS Labs became closely associated with the objective audio movement after supporting NwAvGuy's Objective2 amplifier and ODAC, and the company designs, assembles, tests, and ships its products from its Illinois facility.

The product lineup is anchored by two main lines: the value-focused Atom series, which includes the Atom Amp 2 and Atom DAC 2, and the premium Element series of integrated amp/DAC units such as the Element IV, which introduced DSP capabilities and a discrete optical encoder. JDS Labs also produces the Atom Amp+ and Atom DAC+, the original Element, cables, preamps, USB isolators like the Synapse, and DIY kits and parts aimed at hobbyist builders.

The company emphasizes a quantitative, measurement-driven approach to electronics development, pursuing what it calls "audible transparency" rather than chasing headline specifications. JDS Labs gear has a strong following in headphone enthusiast communities, where the Atom Amp in particular drew attention for offering benchmark-level measured performance at an entry-level price.

JDS Labs has 2 products cataloged on Equipboard, including Preamps and A-D & D-A Converters.