You could work for any manufacturer, past or present...

Perfect, I am in Illinois where recreational is legal and Master Kush is 86% THC - might not even need the time machine

.....and Time....*inhale & hold*(pause)*exhale*....

is not only Relative....but is tending irrelevant....of late....

....damn time machines always seem to dump one into the wrong era, anyway....

Devore Fidelity 

Past: Nikola Tesla
Present: Paul McGowen 

1.)Harry F. Olson, engineer at RCA Victor. Awarded 100 +patents including the 44 and 77 series microphones. Loudspeaker baffles anyone?

Yes, the criticisms of Dynagroove were certainly warranted. IMO, it was simply a serious attempt to improve the listening experience for people with less than ideal audio equipment. (His book, "Music, Physics and Engineering" is available on Abe Books for $6.16 w/free shipping.)

2.) Ed Miller & John Wood (Sherwood).