Q-tuner is a Netherlands-based boutique pickup maker specializing in neodymium-magnet pickups for electric guitar and bass. The company's design traces back to a Dutch patent filed in 1991 and a corresponding U.S. patent in 1992, with early test-prototype production carried out in collaboration with Philips Industrial Electronics in 1993. Q-tuner positions itself as one of the first pickup builders to apply neodymium 'super-magnets' to electric instruments, claiming a stronger magnetic field, higher output voltage and more detailed sensitivity than traditional alnico or ceramic designs.

The core product line centers on the Q2.0 series, a passive humbucking pickup built with double-insulated magnet wire, electrical-steel blades and high-flux-density neodymium magnets. Bass offerings include J-bass dual-coil sidewinders, Music Man (MM) style pickups, and 4-, 5-, and 6-string variants, with transparent-housing versions available alongside standard finishes. Guitar pickups round out the catalog. Each pickup is hand-built — Q-tuner notes roughly five hours of labor per unit — and the company operates as a small workshop rather than a factory.

Q-tuner's reputation among bassists is largely tied to its 'hi-fi' voicing: a clean, tight low end with extended top-end harmonics that drew interest on forums like TalkBass, where players have discussed the pickups as an alternative to active electronics while retaining a passive signal path.

Q-Tuner has 4 products cataloged on Equipboard, including Electric Guitar Pickups and Bass Guitar Pickups. Their gear is featured by 2 artists, with the strongest followings in Rock, Jazz, and Metal. Notable users include Tosin Abasi and Javier Reyes.