DD Audio 9518

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18" 9500 USA Made Subwoofer (Special Order Only) ***For Custom Build Order please contact us for a price***


Often imitated but never duplicated, the 9500 has long been a staple of our subwoofer line and has been featured in many of the world’s loudest systems. These subs are capable of easily handling 1000-2000 watts of continuous power and bursts as high as 8000 watts. Just as you would expect these bad boys are equipped with all sorts of awesome stuff such as EROM and V-ROM surrounds, Free Flow motor cooling, double slit formers, eight layer aluminum voice coils, 28mm magnetic gaps, cast aluminum frames, rigid non-pressed cones, and our multi-layer spider system.

The 9500 Series features our Evolution Subwoofer Package (ESP). ESP equipped drivers sport larger diameter suspensions and deeper frames than standard subs and exclusive surround and cone designs. ESP subs are truly built to maximize performance in their designated size class.

The 9500 Series comes standard with an oversized dry finish black composite dust cap, red logo, and treated pulp cone, but it can be optioned out with alternative composite dust caps, composite cones, powder coated frames, supercharging, and a multitude of logo options to give your sub a personalized look and/or added performance for a specific application.

Any DD Audio Product bearing the Marine Grade logo incorporates water resistant features enabling it to be used in applications where moderate exposure to moisture will not result in damage to the product. 

Marine Grade products are not waterproof, and submersion or excessive moisture exposure may result in product failure. DD Audio Marine Grade products are not certified for saltwater environments.



• Driver Size 18"

• Watts RMS 1000 – 2000

• Peak Power 8000

• VCD 3.35

• Impedance D1/D2

• Piston Dia – in 15 1/2

• Fs – Hz 36.34

• Qms 8.259

• Qes 0.726

• Qts 0.667

• Vas – liters 106.018

• Xmech – mm 100

• Xmax – mm 22

• Frame OD – in 18 1/4

• Frame OD w/Gasket – in 18 7/16

• Mounting Diameter – in 16 5/8

• Mounting Depth – in 10 11/16

• Motor Diameter – in 9 5/16

• Motor Depth – in 4 5/8

• Woofer Displacement - cu ft 0.41

• Sealed Enclosure - cu ft N/A

• Ported Enclosure - cu ft 5.0 - 6.0

• Shipping Weight – lbs 77



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