200 Series

High Performance at Entry Level Prices

Redline Series Subwoofers

The 200 series is designed to provide some satisfying boom on as little as 100-300 Watts. Enhancing these sub’s output efficiency is their smooth, wide bandwidth. They’re hand built and tuned to work well in sealed enclosures as well as compact vented designs.

200 Series Features:

  • EROM surround
  • High-temp, 2.0”, voice coil
  • Double Layer Deep bass, high excursion spider system
  • Unique glass fiber and natural pulp cone
  • Back plate coil gap venting
  • Extended pole piece
  • DD stamped steel basket


Model 210d 212D
Driver Size 10" 12"
Watts RMS 100 - 300 100 - 300
Peak Power 900 900
VCD 2 2
Impedance D4 D4
Piston Dia - in 8 1/2 10 1/4
Fs - Hz 41.05 34.99
Qms 6.601 7.3
Qes 0.9341 1.019
Qts 0.8183 0.894
Vas - liters 21.11 50.78
Xmech - mm 64 64
Xmax - mm 10 10
Frame OD - in 10 5/8 12 1/4
Frame OD w/Gasket - in 10 13/16 12 1/2
Mounting Diameter - in 9 1/8 10 15/16
Mounting Depth - in 5 3/4 6 5/16
Motor Diameter - in 6 6
Motor Depth - in 2 13/16 2 13/16
Woofer Displacement - cu ft 0.06 0.08
Sealed Enclosure - cu ft N / A N / A
Ported Enclosure - cu ft 1.25 - 1.5 1.75 - 2.75
Shipping Weight - lbs 11.8 12.5
Price (USD) 129 139

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.

Express yourself with your choice of logo style and color plus custom dust cap and cone

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Redline Series Subwoofers
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EROM (Extended Range Of Motion) surrounds, pioneered by DD in the early 90’s, allow our subs to have higher, more linear excursion with more cone area than subs using wider surround profiles. Simply put, this surround design allows our subwoofers to make more and better bass than other subs out there. In fact, we like this surround style so much that some variation of it is used on all levels of our subwoofers. The REDLINE EROM surround features new signature aesthetics including a red accent line pressed into the surround and an embossed REDLINE logo.

Redline Series Subwoofers
REDLINE Voice Coil
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These high-temp voice coils are wound with USA made wire and held together with USA made adhesives. They feature a thick-walled, black anodized aluminum coil former for superb heat transfer.

Redline Series Subwoofers
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Spiders are the heart of a subwoofers suspension. Engineered to work with today’s music and system design trends, the multi-layer, multi-configuration REDLINE spiders achieve the perfect balance between control and compliance to deliver longer excursion and deeper bass.

Redline Series Subwoofers
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Utilizing a unique glass fiber and natural pulp formula, treated with a moisture resistant matte finish, REDLINE cones are ultra strong, yet impressively lightweight.

Redline Series Subwoofers
Back Plate Coil Gap Venting
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The motor’s backplate features precision drilled vents in the coil gap for increased voice coil heat dissipation.

extended pole piece
Extended Pole Piece
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The REDLINE subs feature extended pole pieces for added high excursion control and improved heat dissipation.

Redline Series Subwoofers
DD Stamped Baskets
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The DD stamped basket uses rigid steel with a specialized coating resulting in a sturdy, durable, low resonance design. It features precision punched DD logos incorporated into lower venting section.

Redline Series Subwoofers
10-Gauge Push Terminals
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Push terminals allow for quick sturdy connections to the speaker wire coming from your amplifier. These terminals will accept up to 10-Gauge speaker wire for delivering maximum power to the voice coil.

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