The AS250-8-552 is a 250mm diameter woofer with an aluminum honeycomb sandwich diaphragm . The new design provides an ideal acoustic center that is identical to our CELL midrange and midrange speakers. The novel overhang construction combines the advantages of traditional overhanging and underhanging constructions and provides high linear deflection with extremely low distortion. For the CELLBass driver has developed a particularly tough aluminum sandwich diaphragm, which allows a very low delay and energy storage. The hidden centering reduces the overall outer diameter and allows a linear deflection of up to +/- 16 mm. A newly developed centering spider allows great deflection without compression. 
We recommend our AS250-8-552 for the application of 20 Hz - 600 Hz.

Vb: 60L, port diameter: 100mm, length: 440mm, Fres: 27Hz, F - 3dB: 30Hz, Q: 0.58 (optimal)

Vb: 80L, port diameter: 100mm, length: 280mm, Fres: 28Hz, F - 3dB: 28Hz, Q: 0.50 (extended bass)

Vb: 30L, -9dB @ 30Hz, F -3dB: 51Hz, Q: 0.71 (default)

Vb: 80L, -7 dB @ 30 Hz, F -3 dB: 55 Hz, Q: 0.50 (extended bass)