Hi, I recently bought a Yamaha RX-V1400RDS Av Receiver and a pair of Monitor Audio Bronze B2 speakers ( the last version with two bass ports ) from a friend in work. I have wired the speakers in a bi-wire configuration - the tweaters from speaker set "A" on the amp, the woofers from "B". However, having had the speakers on my amp for a week, one of the tweaters has failed - completely stopped working. When the tweaters are swapped between the speakers, the failing tweater does not work in the other box, and the other continues to work in the other speaker. Would anyone have any idea why this might be as I love these speakers and have a worry I am doing something to damage them. I have checked for cross-polarisation and short circuit more than once. My concern is that the amp has 6 ohm/8 ohm speaker settings ( which I left at the default of 8 ohm ) and checking the spec of the lastest B2s, they are 6 ohm. Could this have caused me to blow the B2 tweater? Any help gratefully received!