I am a bass player, my first rig was a Memphis six string guitar with only the bottom four and I shared the input on the guitarist's Crate with one 12 inch speaker in it. Next I got a crappy Magnum bass from the pawn shop and an actually quite decent used Yamaha 1x15. I cant remember the model number but it sounded good.
My first "real" amp was a Galien Krueger 800 RB. I kept melting the transformer in the thing until I figured out to keep a clip on extra fan on the back!
For the last 15 years I have been playing through a Seymour Duncan Bi-Amp 8000. It like a car stereo on steroids but it never breaks and the tone stays the same.