I think this might be a hard question to answer. For me it is the right amount of bass, for you it might not be
I listen to some Bassy Music For example: Massive attack - Mezzanine, beastie boys, portishead, James Blake. They all sound great to me. It does not really pressurize my room like a BIG sub would. The Bass is NOT boomy, NOT Muddy. The Bass is clean, clear, fast and defined. I know the 808 will sound very nice and defined.
For your consideration I am audio enthusiast and audio video technician so I hear speakers and subs everyday. Still a very hard question for someone else to answer.
I will be home in a few days and I will play a few Beastie Boys Tracks loud, I can let you know more