The problem could be due more to the recordings and not your system. If you set the Behringer mic at your listening position I would shelve down the response from 200hz on up (see my response to JP above). Most tonal quality issues can be solved with EQ but some of the differences I think are related to the driver design and cone material. JP's system has aluminum cones and the material stiffness can give the lower mid / upper bass area a slightly "dry" quality.