Sonus Faber Driver Blowouts

I have a pair of Sonus Faber Cremona Monitor M speakers and had to replace the driver in one of them after 3 or 4 years. Now a 3 years later, according to the dealer, the same speaker requires another new driver. Has anyone
else had this problem with these speakers or other Sonus Faber speakers? I am wondering if something in the speaker wiring is blowing out the drivers. The dealer stated the driver wires were simply wrapped around the post rather than soldered so he soldered the wires onto the post, but still no sound. I live in an apartment with neighbors all around, so I do not play music loud. There must be something causing the drivers to blow. Any suggestions?  The drivers are $650 and to put new drivers in every 3 years does not seem normal or acceptable.