Just moved a pair of small JBL bookshelf speakers up onto high shelves at the end of a long rectangular rec room. They are laying on their sides with the tweeters towards the inside of the pair, spaced 3" from the ceiling, 12" from the side walls, with the speakers about 2" off the back wall.
When these used to sit on top of a console at chest level in the same spot in the room, they sounded great. Now they sound strange, and I can't seem to dial them in.
I know I am having issues with the corner placement (the corner between the ceiling and the wall) which is why I kept them about a foot from the side walls. There is definately some sort of mid-bass mud that is always there, and when I play an audience tape with a lot of bass, it sounds boomy. Not deep bass boomy, but mid-bass boomy, if that makes any sense.
I tried giving them a slight downward angle, and that did seem to help, so I think I am going to try to angle them down even more tonight and see what that does.
My question here is basically; because I am forced to have the speakers laying on their side so close to the ceiling, does this mean my only option is to get a powered sub and hope the high pass crossover will deny the bookshelf speakers enough bass to stop the boomy sound?