It sounds like flutter echo to me. All sounds good, other than a shoutiness (ie. it sounds like mid-range performers and instruments are shouting at you). If you can put the system in another room for a day?
Otherwise, set the system up for nearfield listening for a day. That is, with speakers well away from all walls and you sitting very close. Then see if your ears still hurt.
If this seems to cure the problem then flutter echo is probably the cause. This occurs when you have two relectivs room surfaces in parallel. The simplest cure can be moving from firing the system down the long side of the room, to firing it across the room at you. Otherwise the issues are as discussed above concerning dampening reflections and careful speaker placement and listening position.
Otherwise, set the system up for nearfield listening for a day. That is, with speakers well away from all walls and you sitting very close. Then see if your ears still hurt.
If this seems to cure the problem then flutter echo is probably the cause. This occurs when you have two relectivs room surfaces in parallel. The simplest cure can be moving from firing the system down the long side of the room, to firing it across the room at you. Otherwise the issues are as discussed above concerning dampening reflections and careful speaker placement and listening position.