There are a few threads on this topic and I've read them. What I know about the Heritage cabs: American-made Eminence 10's, an Eminence APT-50 instead of a Foster tweeter (in the 410), different/softer Tolex, snazzy grill cloth and better 15mm poplar plywood. I am interested in elaboration and clarification of the above. What exactly is different/better about the Heritage 10's? Is the cross-over different in the 410? What is the cross-over frequency in either 410? What else is different/improved? Maybe @hodgy will fill us in.