your first system-

My first jump up to hi-fi in the early 70s was when I sold my Bose 901s and bought a stacked pair of Infinity 1001As with a Harman Kardon Citation amp, using my Pioneer receiver as the pre-amp. 4 twelve inch woofers really got my ELP albums thumping.

I can trace every piece of gear I own to my first cheap stereo system, I never started with a clean sheet, I always upgraded one thing at a time. I learned a lot doing that way over the decades. 

who has replaced the seats, the engine, the chassis ....

I have an old hammer that is so old it has had 3 new handles and two new heads!