NaO Design.....

The NaO Damped U-Frame, Quasi-Cardioid Woofer
PLEASE NOTE: These pages are now for historical purposes. Music and Design is no longer offering these products for sale.
Previous customers may contact Music and Design for followup inquiries.
Figure 1. Front and rear response of the unequalized NaO II U-frame woofer without damping.
Figure 2. Front, rear and summed on axis response of unequalized, undamped U-frame woofer system.
Figure 3. Front and rear response of damped, unequalized U-frame woofer.
Figure 4. Checking the damping to provide the correct internal delay.
Figure 5. Summed, on axis, unequalized front and rear response of the damped U-frame.
Figure 6. Equalized response of damped U-frame woofer system: Blue, on axis; Green, 90
degrees off axis; Red 180 degrees (behind the woofer).
1. Backman, J. Low-frequency polar pattern control for improved in room response, AES
paper 5867, 115th AES Convention, October, 2003.
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