Just find an old RECEIVER that has RCA inputs (to connect computer/cd player to). If you get one that is more than 60 watts, then you have to be careful. I would suggest finding one with 100watts. Just dont crank it all the way or bye bye speakers. Also, make sure the impedence (ohms) are matched. some older receivers have 2 or 4ohms resistance while newer ones have 4, 6 or 8. Check the speakers ohms and match that with the amp/receiver.