What was your first system? When was that?

My bachelor program university days circa 1971-1975 ( ...the Jurassic Era in consumer audio....)

JBL L100 speakers
MARANTZ 2245 receiver
ELAC MIRACORD turntable
SHURE V15 cartridge
KOSS Pro-4 headphones

This was considered the cat’s a$$ college dorm system of its time with its heavily coloured “California Sound” presentation with heavily spiked treble and bass that was mirrored by the rock LPS of its time. The reality is that it gets totally smoked by even modest audio systems of today. 

This system replaced my first year college system comprised of

SONY receiver ( model escapes me...)
DYNACO A25 speakers / EPI 100 speakers
GARRARD turntable ( ...cartridge escapes me ...,)

again.... fun for ITS  TIME Emphasis added) . BUT .... “ it’s time” was comparable to the technology with General George Washington and the Colonial troops at Valley Forge.

After escaping from high school in June of ’68, I got myself a job for the summer before starting college in September, mostly to get money for a car and a hi-fi. That Fall I bought myself a Garrard SL55 table and Shure M44e cartridge, a used Fisher X-100C integrated tube amp, and a pair of Acoustic Research 4x loudspeakers and Koss Pro-4AA headphones. After that, I upgraded as often as I could, at least once a year.

!959-Eico kit mono amp, Heathkit FM tuner, Garrard Changer, GE cartridge, Stevens speaker. Sound was fantastic.

1998 - Pioneer stereo receiver with Bose 301 Bookshelf speakers. 

My first real stereo was in 1980
Klipsch Heresy speakers ,Kenwood integrated amp,tuner and  Lafayette receiver- Anyone remember  them ?  Nakamichi 3 head 
cassete deck , Audioquest cabling. Technics direct drive turntable
audio shure  cartridge. In my neighborhood it was pretty dam good for a 22 year old kid.