Rumble 100 is very nice, just a tad heavier and bigger than the 40 one. If you're after the solid low end in basic non-expensive combos, 12" speaker is better than the 10" one. And the 15" one will be even better.
As for Rumble vs Ampeg -- everyone has his own cup of tea. Try both.
As for Rumble vs Ampeg -- everyone has his own cup of tea. Try both.
