Originally posted by Helmholtz
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Same thing for the closed back cab with regards to size, but the lack of a back wave is a bit more predictable regarding bass production. A big 4 x 12 original Marshall cabinet with a large amount of insulation does a good job with lows indeed, because of it's sheer size and if you included absorption material that makes things "Bigger" acoustically.
But humans can hear higher frequencies better and louder with less energy, so a big cabinet will get the nod often when it generates bass in a more reasonable range for guitar, perhaps above the resonant frequency of some common 12" speakers.
Then to confound the issue further, there is mutual coupling at a certain distance out in front of a cabinet. You can never win getting this to be absolute, IMHO.
So this means I should still use a larger cabinet ! And stop trying to be a bass player and guitar player all at once !
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