Motional Feedback (MFB) is an active high fidelity loudspeaker system[1] which was developed by the Dutch Philips brand in the early 1970s.
], at the age of 86, Gouw is an active member of MFBfreaks.com, the home of Motional Feedback collectors.
[citation needed] He shares historical stories and answers questions on the forum.
Grimm Audio / Tentlabs have developed the Pro-ls1s-dmf, a digital motional feedback subwoofer which, according to the company, lowers low frequency distortion by 30dB.
A commercial product aimed at the end-consumer market is developed and build by Dutch Archidio, and uses the same technology as the original Philips implementation.