Magnepan ribbons problems


I've been using a pair of MG3.5 since 9 years, and though they've been performing superbly, I keep getting ribbon rupture problems. Due to the lack of local dealership, I've been doing the repairs myself, using their repair kit, but has anyone else encountered such problems ? I need to change 2-3 ribbons every year.

One of the speakers I'm considering upgrading to is the MG20.1, but I'm concerned about the tweeter. It's a right pain in the neck to change it.
cemil
I have 3.6's and have blown fuses rocking with a Spectron digital amp with 650 wpc available. It's incredible how it does not strain. But, to have the tweeters being replaced every couple of years I have not heard of. I am sure you have discussed this with the factory. I wish I had more to offer you except the thought that loud music might be a stressor.
Based on my experience, clipping an amp will blow those tweeters every time. Tons of clean power is the key to avoiding damaging those tweeters. I also agree with other posters' comments here that the fuse value should be checked.

I would not even consider powering Magnepans with less than 300 wpc (minimum) if I wanted to play them loud and not risk damaging the tweeter.
To follow up my previous post, the responses re: power are oh-so-correct. The MGIIIA (all 3.X series and up), demand power, current and finesse. I have driven mine with the Sunfire Signature, and the Aragon Palladium Monos, both put out >400 WPC. The only time the ribbons were replaced in mine were before I took ownership. Care must also be taken when moving or shipping these things: Use the magnetic ribbon protector strip even when moving them from room to room. They may be delicate, but they sure can sing.