Q: Pin Point Wall Treatment

**MichiganMan** · **01-26-09, 08:00 PM**

I have the sub placed, the DSP1124p is online. So the bottom end is decent. The problem is a wide null @150Hz.

Are there techniques with REW that can help pin point where to add treatments to reduce the reflection?

**Wayne A. Pflughaupt** · **01-27-09, 06:22 PM**

150 Hz is too low for treatments that address reflections. Those treatments are typically most useful in the upper midrange and higher. That's the range for bass traps, although you could easily address the problem with the BFD.

Regards,
Wayne

**MichiganMan** · **01-27-09, 06:42 PM**

Quote:

Wayne A. Pflughaupt wrote:

That's the range for bass traps, although you could easily address the problem with the BFD.

Wayne,

Bass traps are definitely on the agenda. How can the BFD help @ 150Hz? My sub crosses over is at 80Hz.

**Wayne A. Pflughaupt** · **01-27-09, 06:52 PM**

You're right - sorry 'bout that...

Regards,
Wayne

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