What has blown my tweeter????

If you suspect the Cap 101, I would try switching channel connections and listening at low volumes to see if the high frequency noise is recurring (don't fry your other tweeter!). If you can isolate the source of the noise to the Cap 101, I would write a description of what's wrong and send it into the factory for repair. I assume it's still under warranty if it's brand new. Unfortunately, you may have to pay for a new tweeter; I doubt you can get Classe to pay for the collateral damage. The new tweeter may sound significantly different until it's broken in.

Thanks Jameswei,

The dealer is presently doing some tests.

I'm curious to know if the tweeter might generate a very high frequency sound of its own before failure?

As for "collateral damage" it would seem to me that Classe should definately foot the bill for a new tweeter. Especialy if the Classe proves to be defective and the cause of the tweeter's failure.

A company as respected as Classe I imagine would have some form of professional ethics...?

An update:

The dealer has found that the tweeter is completely "fried". They will replace it for me and are sending the amp back to Classe. HFO seems to be suspected.

How will I know if it is truly fixed?