OK, with a tube amp you generally have (except for a couple special cases) an output transformer. As electronic geeks (and geek-wannabees, like me) know, continuous DC won't pass through a transformer; only a pulsed wave or AC. And the closer you get to DC, the more difficult it is to pass. Solid state amps don't use output transformers, and transistors (generic solid state devices) don't require output transformers, and are able to switch on and off at intervals as long as you like. So, are solid state amps inherently superior for very low frequencies? Discuss.