N_Cook wrote:

The view of this amp
is upside down as the fan is at the base. So drawing air horizonatally
theough a "designed" 5/8 inch space under the amp.

Hahahahahahahaa !

What LOONIES. That's STALLING the fan blades. NO wonder putting bigger feet on
helps.

How well would a propellor aircraft fly if you put an obstruction in front of
the prop ?

Graham