Gotta listen to your ears man! Thanks for trying though. Just for kicks, try one in a real jam situation.
Agreed. I tried to take it into account where I was, and that putting it in a mix is always so different. And I also stepped back about twenty feet while the salesman played. I set the eq myself on all three amps.. At least all three rigs were right together along the same wall.
Some of the Markbass "big" sound comes from it's putting out more down to 40Hz whereas as the Rumble is more down around 80 Hz as it begins to fall off. But 40 Hz can get boomy in a venue and help you disappear in a mix. When needed I sometimes roll my low control back to around 10:30 to clear up my sound.
I find that the Markbass controls are very responsive. I'm usually running the knobs flat with the VLE up some. No messing with it after that all night long, for me. No reliability issues yet after nine years.
It so happens that the low knob on the Rumble was at 2:00 for this comparison.
Anyway, yes, the Rumble in a jam mix would be good to experience. I'd jump at the chance.