Mr. Mark Trainer

Expert in transducers and acoustic system

Expert in transducers and acoustic system

Founder and lead engineer of Minimum Phase LLC


Mark Trainer is the founder and lead engineer of Minimum Phase LLC, a design consulting company helping factories and brands improve their audio performance by optimizing gain-bandwidth performance for each product category using a top down multidisciplinary approach of acoustics, electronics and software/firmware.

Mark spent 12 years at Harman designing transducers and acoustic systems for embedded audio in laptops, portable and desktop devices. Mark was an expat in Suzhou China to ramp up the engineering design and NPI team for OEM transducers and Harman’s iconic multimedia products. Mark was also the cofounder of Strata Audio (aka Soen Audio) where he developed and manufactured high performance transducers optimizing bass performance in small enclosures shipping products to TV, computer and tablet manufacturers shipping under the Soen brand name.