I had a similar experience to you guys. The 950 came from the factory crossed at 100 Hz. I set it to 80 Hz initially. Then to 60 Hz. Now the mains are at 40 Hz. Still experimenting with the surrounds and center, though. Center sits on top of the RPTV and can sound boomy if not careful, when lower frequencies pass through. That's just the quirks of my case system, but sometimes quirks can be adjusted/fixed/changed/improved.