Philips "fish eye" amplifier. Appr 1976. And the famous Motional Feedback ( mfb)-speakers, great product from Philips sound engineers in the sev… | Anni 50, Scultura
Philips Motional Feedback (MFB) loudspeaker
Philips 22HR541 MFB Performance Upgrade - YouTube
Philips 587 | Reverb
Philips RH 545 Studio | Inner Magazines
Philips MFB Speakers AH-544 - working Active Electronic Motion Feedback | eBay
Philips MFB 532 | Audiokarma Home Audio Stereo Discussion Forums
The Story Of The Philips RH544
Philips MFB Speakers AH-544 - working Active Electronic Motion Feedback | eBay