I would stay away from speakers which have an impedence which droops much below 4 ohms. It sounds like your amp doesn't have a very high current capacity. If the impedence of the speaker remains above 4 ohms and its efficiency rating is at least 90db you would be alright except for very loud levels. Moderate levels should be no problem.
Sensitivity, Watts and impedance: Speaker Matching
Which of these features is the worst enemy of low-wattage amplifiers (50W into 8ohm, 75 into 4ohm, like in my case). Should I steer away from 4ohm loads if my amp has between 50-75 watts? What if they are efficient (+90db) but low impedance?
I have in mind a pair of Audio Physic Tempo III but I don't know how good a match they may be with my Blue Circle CS.
I have in mind a pair of Audio Physic Tempo III but I don't know how good a match they may be with my Blue Circle CS.