1st system was a Pioneer big round dial underdash Supertuner w/cassette(cost me $20 at a X-mas drive at school for raffle tickets),Kraco 5-band equalizer,Jensen 6X9 triaxials.That system went thru Quite a few vehicles.Then was sold to my brothers girl friend at the time for $125. 2nd system was a Pioneer KE-5100 in dash Supertuner with a 7-band booster equalizer, cant remember the brand,Jensen triaxial II 6X9's,2 supertweeters,2 tweeter horns.That system was in a 72 Grandville 2dr Brougham.At the time 81-82 it would rock.

I can also remember the Reverb on a 67 GP conv my dad had.Wow

was that something to hear!
Kendall