Mark pretty much got 'er there.

The QS8s, for instance, are rated for a "maximum" rating of 400W... will they handle more clean power than that? Of course... but that's a nice conservative estimate. Will they get damaged by being driven by a much smaller but clipping source - probably.

If you want an idea of how much power is needed to push your cones in and out, ask some of the tube-ers around here. Most of them are in the 5W-20W range.

Bren R.