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9900

Revision ‘c

9900

Revision ‘c

The BEAST
The BEAST
UNLEASHED
UNLEASHED
10+ YEARS
of pure audio carnage!

One look at the 9900 and you know why it’s called The Beast.

One look at the 9900 and you know why it’s called The Beast.

With 3 inches of magnet cross section over a 10 inch outer diameter and a weight of 70 pounds for the motor alone, this abomination of rage lobs clean forceful strikes of relentless fury, pummeling the air with unadulterated ruckus and attitude.

CRAVING MORE

Now, with all the features you’ve come to love in the new 2508G, 9500L and Z Series

CRAVING MORE

Now, with all the features you’ve come to love in the new 2508G, 9500L and Z Series

RARE BREED

Carefully wielded by a rare breed of indomitable bassheads, this ornery giant has been earning its bones from the lanes to streets for over a decade. 


With this revision, the belligerent beast is ready to be unleashed to perform
PURE AUDIO CARNAGE
9921c subwoofer slanted right side view of motor, surround, and part of dust cap and cone
9921c

21 INCHES

The 9921 ups the game further with standard composite cone and 2nd generation EROM high-roll surround. At nearly 30% more cone area than a typical 18 inch sub, the 9921 is the most efficient way to move air with less coil travel, providing the ultimate in sound quality.

THE HEATSINK

The Dual Stage Heat Sink uses an internal aluminum tube insert to transfer heat away from the pole piece and voice coil and into the finned aluminum, backplate mounted, heat sink. This process of conduction and convection lowers the working temperature to safer levels,

The Dual Stage Heat Sink uses an internal aluminum tube insert to transfer heat away from the pole piece and voice coil and into the finned aluminum, backplate mounted, heat sink. This process of conduction and convection lowers the working temperature to safer levels,

for the longest playing time possible at the highest level of efficiency possible.
for the longest playing time possible at the highest level of efficiency possible.

THE SURROUND

The 2nd generation V-ROM surround is debuting on the 15” L revision.

Yielding the smoothest high excursion capability to date.
Yielding the smoothest high excursion capability to date.

The new design offers added height for DD’s proven EROM surrounds, and with it, higher levels of excursion over maximum cone area. DD engineered variable density ribs to expand and contract as the surround is forced in and out of sine waves, essentially eliminating hysteresis and its negative effect on linearity, ensuring the highest possible stability.

The new design offers added height for DD’s proven EROM surrounds, and with it, higher levels of excursion over maximum cone area. DD engineered variable density ribs to expand and contract as the surround is forced in and out of sine waves, essentially eliminating hysteresis and its negative effect on linearity, ensuring the highest possible stability.

THE SPIDER

Complementing the improved surround is DD’s new, USA Made Iron Cloth Spider System.

Complementing the improved surround is DD’s new, USA Made Iron Cloth Spider System.

These high roll spiders are capable of 30% more excursion.
These high roll spiders are capable of 30% more excursion.

The new Iron Cloth Spider System continues the tradition of multilayer pressing to meet the Power Tuned stiffness targets, but with the added benefits of higher strength threads weaving through the double or triple layer configurations. The result is substantially elevated performance and long term durability.

*spider color may vary depending on production run – design, material and build quality remain the same

The new Iron Cloth Spider System continues the tradition of multilayer pressing to meet the Power Tuned stiffness targets, but with the added benefits of higher strength threads weaving through the double or triple layer configurations. The result is substantially elevated performance and long term durability.

*spider color may vary depending on production run – design, material and build quality remain the same

THE COIL

The 9900 Series voice coil is Made in the USA, and has evolved over generations to be the envy of DD’s competitors. Among the 5 layers in these complex formers are Nomex and Polyamide which insulate the coil, protecting the glue joints between the spider and coil former. These synthetic layers are sandwiched by dual aluminum layers, which transfer heat away from the voice coil windings (again, acting as a heat sink). The wire and adhesives are manufactured to endure the most extreme high temperatures and the coil thermosetting occurs over 2 baking and resin coating cycles. The double slit design helps to reduce distortion and inductance. In short, this voice coil has matured to include the best known materials and techniques available to deliver matchless performance.

THE MOTOR

The 9900 motor is a work of pure magnetic magic. DD AUDIO uses their own proprietary magnet tooling to maximize the surface area transfer from the low carbon back and top plates. The motor on the 9900 perfectly protects DD AUDIO’s reputation for having the tightest gaps in the industry, with minimal tolerances around the coil windings for increased gap flux. On custom orders, DD offers the option of SuperCharging the gap with neo to further increase flux by 30% or more. The motor also features DD AUDIO’s Free Flow Cooling System, which employs vents and cross vents running through the magnet gap, pole piece, top plates and back plates. The more excursion the speaker sees, the higher the airflow through the motor and around the coil. All motors use Faraday shorting rings to reduce distortion and inductance.

9900 revision c showing slanted back view of motor with an overall red tint on photo
THE CONE

The 9900 Series is Made in the USA with as many Made in the USA components as DD AUDIO can reasonably acquire. Among those components is the USA made cone, engineered to be the lightest and stiffest pulp cone in existence. The key ingredient to its incredible strength to weight ratio is Carbon Fiber. Augmented by Kevlar and a myriad of synthetic and natural fibers, the cone is low density formed on non-press molds to increase the total cross section area, promoting a web of strengthening ribs across its backside. This high cross section area doubles the rigidity without increasing mass. The exotic fibers cost more and the cones take longer to form, but the result is audibly distinguishable; and to hear the difference of the 9900 is to hear the difference of handmade, USA build quality.

3200W RMS

Made In Oklahoma City, OK, USA.

PREMIUM FEATURES

PREMIUM FEATURES

  • NEW Aluminum 2 Stage Motor Heatsink
  • 260mm Magnet Diameter
  • Multi-Vent Free Flow Cooling Motor
  • Shorting Ring Motor
  • 4.3” High-Temp Voice Coil
  • Excursion Optimized ESP Frame
  • V-ROM Vario-Density Surround
  • Non-Pressed Composite Reinforced Pulp Cone
  • 11” Dual/Triple Layer Iron Cloth Spider
  • Laminated Tinsel Leads
  • Hand Laid Composite Dust Cap
  • Embossed DDesign Magnet Boot
  • Made In USA
  • Optional Upgrade: SuperCharge
  • NEW Aluminum 2 Stage Motor Heatsink
  • 260mm Magnet Diameter
  • Multi-Vent Free Flow Cooling Motor
  • Shorting Ring Motor
  • 4.3” High-Temp Voice Coil
  • Excursion Optimized ESP Frame
  • V-ROM Vario-Density Surround
  • Non-Pressed Composite Reinforced Pulp Cone
  • 11” Dual/Triple Layer Iron Cloth Spider
  • Laminated Tinsel Leads
  • Hand Laid Composite Dust Cap
  • Embossed DDesign Magnet Boot
  • Made In USA
  • Optional Upgrade: SuperCharge
T-Shirt with subwoofer. Shirt says I GOT 9900 PROBLEMS BUT BASS AIN'T ONE
“I GOT 9900 PROBLEMS BUT BASS AIN’T ONE”

FREE T-SHIRT FOR FIRST 30 CUSTOMERS!

Communicate your size preference to your local Authorized Dealer or DD Sales Representative when ordering your custom USA Made 9900c subwoofer (no rainchecks).

Sizes small to 4XL (sizing info) for the first 30 customers who purchase a 9900c. Gildan Softstyle T-Shirt, printed with a white waterbase ink.

One per customer, per 9900c purchase. First come, first serve. Availability not guaranteed.

Model Number:


Speaker Size:

12

15

18

21


Watts RMS:

3200

3200

3200

3200


Watts Peak:

12800

12800

12800

12800


Impedance:

D1 / D2

D1 / D2

D1 / D2

D1 / D2


VCD (In):

4

4

4

4


Piston Diameter (In):

11

14.25

15.5

18.25


Fs (Hz):

31.63

34.32

26.24

26.24


Qms:

5.398

6.551

2.265

5.265


Qes:

0.377

0.426

0.5167

0.517


Qts:

0.352

0.400

0.4705

0.471


Vas (Liters):

23.63

54.38

161.9

161.9


Xmech (MM):

62

62

60

92


Xmax (MM):

22

22

22

22


Frame OD (In):

13.38

16.62

18.25

21.3125


Frame OD w/Gasket (In):

13.5

16.75

18.5

21.3125


Mounting Diameter (In):

12.19

15.19

16.75

19.25


Mounting Depth (In):

9.69

10.31

11.875

11.3125


Motor Diameter (In):

10.31

10.31

10.3125

10.3125


Motor Depth (In):

4.56

4.56

4.5625

4.5625


Displacement (CuFt):

0.33

0.4

0.46

0.55


Ported Enclosure (CuFt):

1.75 – 2.75

3.0 – 6.0

5.0 – 6.0

6.0 – 8.0


Price (USD):

1199

1269

1389

1499