In another forum I inhabit, someone posted details about a National
Panasonic amplifier and speakers that employs a Motional FeedBack system:
https://www.hifiengine.com/manual_li...l/sa-52h.shtml
I was more than a little surprised, as I assumed that Philips invented
the system for their famous range of speakers, released in the 1970s.
Anyway, I did a little digging and found that the National system was
based on one invented by Luxman in the 1960s:
http://www.proaudiodesignforum.com/f...php?f=12&t=707
Impressive technology for a domestic product for the time.
--
Trevor Wilson
www.rageaudio.com.au
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