Hi everyone, I'm new to this site, and new to home audio systems. I have four old speaker sets (total of eight speakers) that I would like to connect to an amp and use at home. I have attached images from each set. The sets are rated for 6 ohms except for one set which is rated for 8 ohms. I'm not interested in paying for a high-dollar amp, and have considered looking for one second hand. Can anyone recommend a good amp that will handle multiple sets of speakers but doesn't cost more than my old speakers are worth? Alternately, how would I look for a good amp second hand? What specs should I be looking for? Thank you all for your time!