Here's my measurement !

**SQBubble** · **06-16-08, 11:11 AM**

only the tc-10oem in .78cu.ft sealed with LP Butterworth 24db/oct at 90hz playing:

only the b&w 685 full range playing:

both combined:

**brucek** · **06-16-08, 01:09 PM**

Please post your graphs with a vertical scale of 45dB-105dB and a horizontal scale starting at 15Hz.

See the little icon in the bottom left corner of your graphs in REW? That's the button to save the graphs to a 800pix wide jpeg that is used to post plots (instead of showing a huge picture of REW).

With that in mind, show us the sub from 15Hz-200Hz (no smoothing) and then a sub+mains from 15Hz-20Khz with 1/3 smoothing.

brucek

**SQBubble** · **06-17-08, 03:55 PM**

mains+ sub

sub:

**brucek** · **06-17-08, 06:47 PM**

Looks like you need to do some adjusting of the phase of the sub to get a smoother transition around the crossover area. It's a fair dip between 60Hz-100Hz that isn't really present with the sub alone - indicating an interaction when the mains are added. Try phase and also time delay if required.

I'm wondering why you're measuring at such a high level and not at 75dB?

brucek

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