Hello Audioholics, \n\nI've inherited a pair of kef reference 203\/1's. I've managed to blow up a musical fidelity a300 amp and am now trying to get them running on a cyrus system. \n\nI have got 2 x-powers driving just the subs (bottom speaker terminal) with each x-power in mono mode on one speaker. Another x-power is driving the rest of the speakers in stereo mode. \n\nI would have thought this was more than enough power but the mono mode amps still get very hot with the volume not turned up very far and if I push them they cut out. \n\nI have now noticed that one speaker has the 2nd from bottom driver not working. Could this requirement for power be caused by damaged crossovers?\n\nBoth bass amps get a hot as each other but the amp driving the mid and tweeter is as cold as ice. \n\nMy monitor audio rs8's can go twice as loud without any amplifier breaking sweat. \n\nAny ideas?