High SPL woofers that rely on excursion USUALLY have poor SQ, there are a few exceptions...like high end RE, FI, and Adire woofers. I believe it's the X^2 motor technology used in the RE and Adire that allow it to keep it's linear movement, even with high excursion. Excursion=Distortion, but if you can control the excursion and it's movement.... you have a nice sounding woofer.BAGGED89 said:every heard an FI? I was looking into the SSD12. The power handeling is enough. From what i have found the really high SPL woofers do tones better than music. I need music.