jdmccall
Super Member
I just put my 901's back into use after about a five month hiatus. Sound is glorious, but...I am having some issues with hot-spotting, or beaming of highs. What happens is this: Sitting in the sweet spot everything may be hunky-dory, but if I move my head left or right a couple of feet or lean forward a couple, it's like somebody just cranked the treble up 6-9 dB. This is only really a problem on some recordings that happen to have a lot of energy in a specific higher frequency band. Joan Baez' upper register and hotly recorded cymbals, for example. I've tried pulling the speakers out further from the front wall, which has helped, but the problem still persists. I've also moved the listening seat a few inches further from the speakers, but I can only go a few inches more. Likewise, I can only pull the speakers about three more inches from the front wall. They're set up on the long wall and I'm running out of real estate. So I'm wondering if diffusor panels behind the speakers would help. Thoughts?