Pioneer sound system?

I bought a pioneer sound system from my girlfriends brother. I payed 100 dollars for a 12 inch 800 watt and 10 inch 600 watt subs. A 760 watt 2 channel amp. And 1200 watt wires plus a scosche 500k micro farad capaciter. Was this a really good deal or is pioneer just cheap? It was used but is still basically brand new.