Quark fried, blown capacitor...

[BrianG]

Seems like a neat little package. The transient supressors sound useful to shunt spikes, and there are a few high frequency caps (which look like the one that burnt on the Quark BTW).

The description supports the theory that several smaller caps are better than one single one of the same overall value because there is more surface area to dissipate the heat. Unfortunately, the cap on there looks like it's only good up to 16v. I'm sure you can find low-ESR caps on Digikey - just look for caps with very low resistance and can handle up to 105*C.