Magnepan ribbons problems

I have the same speakers. I listen to a lot of music, including heavy metal/hard rock, real loud, and I've never blown a tweeter. I agree with the previous posts. Check your fuse value, and make sure you have enough power. A clipping underpowered amp can actually do more damage than over powering.

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.