[quote name='nash' post='1171455' date='Mar 21 2011, 10:33 PM']since when will you use 300 watts? let alone 400+.
too much power![/quote]
Nope, for a gigging amp, trouser flapping bass end AND dynamics needs loads of headroom to make it work. Id rather run a 400 watt amp at respectable volume then have all the welly there in reserve if I need it, than run a 200 watt at full pelt and flatten everything in the process. Also bear in mind that doubling the watts does NOT double the volume, and bass needs more power than top end does. Thats why you often see 300w bass amps alongside 100w guitar rigs, and the guitar rigs can still occasionally drown the bass out because they are projecting higher frequencies that are easier to amplify and reproduce, and (crucially) are much more directional. Also depends on the cab. An SVT through an 8x10 will knock people senseless at #5 on the master volume, but through a Hartke 4x10 it sounds a bit limp.