Raquel's original comment had me somewhat baffled; the follow up post clarified things. A 4 ohm load is harder to drive and to do it properly does require more from an amp. That's not the case with a more efficient load. A properly matched system can work well with a "lesser" amp in a well matched system, though at some point a matter of "degrees" will creep into any discussion of audio equipment.
Unsound makes some interesting points. In my limited experience there's validity to them all, but, again, it comes down to matching equipment. But Unsound also makes the best argument of ALL for tubes, albeit indirectly. They keep life exciting! Taking my Seedwings Sensor (Google it) out most weekends isn't enough. I need the excitement of tubes, too! :-)
Unsound makes some interesting points. In my limited experience there's validity to them all, but, again, it comes down to matching equipment. But Unsound also makes the best argument of ALL for tubes, albeit indirectly. They keep life exciting! Taking my Seedwings Sensor (Google it) out most weekends isn't enough. I need the excitement of tubes, too! :-)