Re: Randal RX120RH
You get what you pay for with those.
The head is nothing to write home about. It may sound ok through a good cab.
The cab may be ok. Undersized. The specs say it's made out of plywood. I doubt it's all plywood at that price, though. The speakers are not great, and they mount using either a 6 or 5 bolt pattern, I believe, so speakers swaps are not going to be that easy.