Originally Posted by
jpw
THE PROBLEM IS that even after lots of placement experimentation and utilizing the riser, the frequency response of this speaker is not flat in the bottom end. The range from 80-160 hz is up 4-6db compared to 50hz and 200-250hz on either side. The output at 40 hz has come up from where it was earlier with the speakers further into the room, but it is still 6 down from 50hz. There is a spread of at least 10db or so between 40hz and 100hz. I've measured and listened to a lot of speakers in this room over the years and believe most of this to be a trait of the speaker. It's very audible and I am frankly bothered by why a PRO JBL speaker so accurate in all other areas would have such an obvious bass hump built in. EQ will be necessary (not a deal breaker for me as EQ is everywhere in audio if you look for it) unless I can find a substantially more linear response curve in a different location, which I doubt at this point.