[quote name='gjones' timestamp='1329683653' post='1545952']
I just couldn't get on with the TC Electronic head I had because, although it was light as a feather, it didn't have that 'weight' you're talking about. It's difficult to put my finger on the quality you describe but I felt it was if a whole band of low mid frequencies was missing on the TC. However I twiddled with it the amp just couldn't produce the sound that I wanted.
Now I've bought an ABM it has the 'authority' that the TC lacked (I think the technical term is 'bollocks'). Maybe this lack of 'authority' is a feature of digital amps? Or maybe it's a figment of my imagination?
I was hoping the MiBass would be different.
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I'd normally equate 'weight' with the bottom octave of the bass, i.e. 40 - 80Hz. The TC is known to roll off in this area. Although it sounds fine with a cab that has some bass extension, if the cab itself is rolling off in the same area, you are likely experience a lack of 'heft'. I'd guess that the ABM is flat to 40Hz and is therefore simply producing more of the bottom octave. It looks like the MiBass might have the same 'contoured' bottom end as the TC.
By the same token, if you use an amp that's flat to 40Hz with a speaker that extends down low (especially 15s, which tend to lack highs), you can easily end up with a sound that is 'wooly', Now where have we heard that before?:-)