My first "system" was an Ampex 8-track AM/FM deck, Jensen 6X9's, and Radio Shack 5-1/4's. The deck only had 2 channels so the fader control was a passive resistance control (potentiometer).
circa 1969, probably before most guys around here were born lol.
1999 Buick Park Ave Ultra
Head Unit: JVC KWHDR720
EQ: Audiocontrol EQL
Front Stage: Hybrid Audio Technologies Imagine 5.25 mids, Morel Maximo tweets
Sub Stage: Boston G3 10", 0.5 cu ft sealed
Amp: PPI Phantom 900.4
Rear Fill: Boston SE953 6X9's