I would guess the ans. would be in the spec.sheet of the speaker.i.e. for this wattage one would want 8ohms no major dip below 6 anywhere, and decent sensitivity such as 90/92.
You must have a verified phone number and physical address in order to post in the Audiogon Forums. Please return to Audiogon.com and complete this step. If you have any questions please contact Support.
