I just bought an acoustic 100 watts combo and wondering if it would be
Loud enough for small gigs like coffee houses and such,it has a 12 inch speaker
I have one week to take it back and get a
Replacement,they have another acoustic
With a 15 inch speaker
What say you all?
Thanks,Dave
Without having played the specific amps in question (but having played various Fender, Hartke, Peavey, GK, and Ampeg combos in similar size/price ranges, as well as some of the bigger "Acoustic" stuff) I think that you'd be fine, in terms of volume, for coffee-house type stuff (or at least what comes to mind when I think of that). It might be that the bigger amp would have a more full sound (seems to be the case with a lot of budget combos), but I can't say for sure without playing them (some 12" cabs sound nice and full and some 15" cabs sound middy and boxy).
If you have another rig that you use for bigger stuff and are picking this up to have something small and convenient for intimate venues, I don't see a problem. If you're looking at this as a main/only amp or are planning on playing along with a drummer using anything other than brushes (maybe exaggerating a bit, but a heavy-handed drummer can overpower a lot), I would consider something more capable, just to have some margin for error/comfort.
The size/weight/schlepability might factor-in for you, particularly if this is to be a small, "grab-n-go" rig -- if so, check the weight and dimensions and figure if you're comfortable carrying that in your situation (like if you're walking several blocks with the rig).
Good luck!
EDIT: If you got the combo somewhere local where you can play the 12" and 15" combos next to each other, do that.