You may say whatever you like, but I personally found that post a little misleading. For one, you quote someone else saying that the mesa 4x12 is good, and then use your experience with a mesa guitar 4x12 as evidence to support this claim. But, although one might assume that using the word "rectifier" implies a guitar product, a reader may not be aware of this fact. You also said "a band member" and not specifically a guitarist which increases the chances of the statement being misinterpreted.
Now I understand the premise you suggest that because the guitar 4x12 you heard was loud, and this impressed you, that this would reflect upon all products under said brand. However, it would be foolish to assume that your perception of this mesa guitar cab's loudness bears any indication of the quality of their bass cabinet, where the only similarities are the number of drivers that also happen to be the same size, and perhaps the wood used in it's construction.
I'm not slagging on Mesa, they're a great company and I've had positive experiences with their bass 4x12, I just don't think that the comparison to another product of theirs which employs different construction, dimensions and drivers can be used as a valid testimony.
