Remember this - 75W of guitar amp is not the same as 75W of bass amp. The rule of thumb is that you need 3-4x the wattage as the guitar, and enough headspace to cut through the drums and other noise factors associated with gigging.
75 x 4 = 300 Watts - exactly what was mentioned earlier. Get something with no less than 300W in a ported cabinet so that the air movement is good - this is the most important factor in good live bass sound. Read this article:
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Lots of good stuff in there about amps.
I also agree about buying used - tons of great deals on here, and Craigslist (as a last resort, if and ONLY if the wonderful sellers on here can't get you what you need!)...
75 x 4 = 300 Watts - exactly what was mentioned earlier. Get something with no less than 300W in a ported cabinet so that the air movement is good - this is the most important factor in good live bass sound. Read this article:
[Invalid or Expired Link Removed]
Lots of good stuff in there about amps.
I also agree about buying used - tons of great deals on here, and Craigslist (as a last resort, if and ONLY if the wonderful sellers on here can't get you what you need!)...