I don't have a 7000 yet. but A guess would be that since you 1st got it you got right to the organ sounds which are full and probably loud. So much so that the bass sounds weak? Just a guess, but maybe turning down the other parts some? Being that the 7000 has a bigger amp and the bass port is in the back. Having it up against a wall might block sound coming from the bass port being that its in the back. But who has a keyboard in the middle of the room. To test this theory, head phones would tell you if the port is not ideal in the 7000 if against the wall. Trying to help but I may be wasting your time. Let me know cuz I am wondering. Seeing that I intend on getting a 7000.
Tony