Floor dips. Jon Risch?

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I have just completed a 2 way MTM with 5-1/4" drivers. They are stand mounted and the tweeter is 40" off the floor. They are sealed box and are allowed to roll off "naturally". Using a groundplane measurement outdoors the f3 is 85 Hz. I cross these over to a powered 12" sub.
I noticed the mid/upper bass seemed to be lacking. Plenty of low bass, but music seems to lack weight and punch. I decided to measure the in-room response and have found a couple of good size dips. Thru placement, I've been able to get a pretty flat in-room response below 100 Hz. The problem is I have a 8-10dB dip between 100 and 200 Hz. Switching the subs polarity has no effect. I assuming that moving the cabinets closer to the floor will help but since it is a MTM I want to maintain the tweeter's at ear level axis.
Any suggestions?
Sleepless in Seattle

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Topic - Floor dips. Jon Risch? - Sleepless 14:00:30 05/12/00 (3)

Re: Floor dips. - Sean 09:06:21 05/16/00 (0)

What did you use to measure the response? (nt) - Rob Doorack 13:04:13 05/15/00 (0)

Re: Floor dips. Jon Risch? - Jon Risch 22:19:55 05/13/00 (0)

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