[quote name='Bankai' post='1268693' date='Jun 14 2011, 02:39 PM']That impedance you would be selecting is the the minimum impedance, so you could still use an 8 Ohm load, but only receive half the total wattage you would normally get.[/quote]
WRONG!
This rule is fine for most solid-state power amps. valve amps are a different bag all together. If anything you're better off going slightly lower rather than higher impedance