Without being able to actually hear the drum, it's hard to be exact ... but your suspicions are probably correct ... it's the room.
Low frequency wave forms require space in order to fully develop. If in a large room you can hear a difference when you stand close to the Kick drum versus far away. The same goes for Bass amps; the best sound is typically 6-8 feet in front of the bass cabinet.
Take the Kick drum out of the small space and put it in a big room ... then PLAY IT!!!
Hear the difference?
Good tuning can really make the drum sound a LOT better! I personally can't comment further, in regards to your tuning, because I haven't heard the drum.
I think my room is way too small to handle my kick's immense power(I have a rockstar custom, and they project really well).
What you just said was quite interesting. Perhaps this is why a bass drum sounds better far away than up close. I just wish I could always play in a gym, so my drums would always sound good. I hate it when my drums sound crappy just because of the room acoustics. I sometimes think the drums are the problem, and that is VERY infuriating and VERY misleading. You know what I mean?
And I know how to tune good. I practiced for hours at a time over the past couple years, and that developed my ear and tuning skills and abilities.
My kick and rest of my drums sound excellent in a venue almost no matter what. You(Bart and the rest of you) would most likely think my drums are very good sounding in a venue if you heard them in a gymnasium. Thank's for your help.
x