It's sad news. I always wondered if this model would ignite. I was hoping not given your use of external amps. I recall looking at the internal layout when you said you bought it. There is a fan but it's circulating air from the faceplate to the field connections. That does no good because the front and back are not vented. And the fan is actually blocked by the heat sink base! To top it all off, the fan is noisy as well.

A better design is to suck air from the bottom and blow it out the top across the heat sink *fins* and not the base - with a fan or two whose speeds are modulated by temperature so that noise is reduced.

I recall you added an external fan and the damned thing cooked anyway.

House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated