DD Audio 2508G-D4 SuperCharged 8" 1200W RMS Dual 4 Ohm Competition Subwoofer

• SUPERCHARGED MOTOR: A neodymium ring focuses magnetic energy into the voice coil gap for 20 to 25% more usable motor strength and tighter cone control.
• SAME TRUSTED POWER RATING: Handles 1200 watts RMS just like the standard 2508G, so the extra control comes without changing your amp requirements
• FLEXIBLE DUAL 4 OHM WIRING: Wire one sub to 2 or 8 ohms, or pair two subs at 1 or 4 ohms to match your amp.
• BUILT TO RUN HOT AND STAY STABLE: A two-stage aluminum heatsink and cast ESP frame help pull heat away from the motor during long, hard sessions.
• BUILT TO RUN HOT AND STAY STABLE: A two-stage aluminum heatsink and cast ESP frame help pull heat away from the motor during long, hard sessions.

DD Audio 2508G-D4 SuperCharged 8" 1200W RMS Dual 4 Ohm Competition Subwoofer

This Listing Includes

• (1) 8" Dual 4-Ohm SuperCharged Subwoofer 2508G-D4

*Please note: SuperCharged subwoofers are made to order by DD Audio. Please allow approximately 1 to 2 weeks for your sub to be built before it ships.

Compact size. Competition DNA.

The DD Audio 2508G-D4 brings heavyweight performance into a tight footprint, engineered for builders who want clean, controlled output without sacrificing space. The latest "g" revision enhances motor strength, thermal management, and suspension stability, so it plays harder, longer, and cleaner.

This is the SuperCharged version. DD adds a specially shaped neodymium ring inside the motor that redirects magnetic energy into the voice coil gap, raising usable motor strength by about 20 to 25%. You get a tighter grip on the cone and cleaner, more controlled bass across the whole power range. Power handling stays the same as the standard 2508G, so plan your amp around 1200 watts RMS.

With its Dual 4 Ohm configuration, this sub is perfect for multi-sub setups or higher impedance builds, giving you flexibility without losing punch.

Features

• SuperCharged Motor with Neodymium Flux Ring


• New Aluminum 2 Stage Heatsink


• 7.0 Inch Diameter Motor


• 20mm Top Plate


• New 2nd Gen V-ROM surround


• New Ironcloth Double Spider System


• Hand Laid Carbon Fiber Dust Cap


• DD ESP Cast Frame


• Carbon Fiber Loaded, Non-Pressed Pulp Cone


• Direct Leads


• Laminated Tinsel Leads


• Embossed DDesign Magnet Boot

Specifications:

• Speaker Size (In): 8


• Watts RMS: 1200 (same as standard model)


• Watts Peak: 3600


• Impedance: Dual 4 Ohm


• VCD (In): 2.5


• Piston Diameter (In): 7.25

Thiele and Small Parameters:

• Fs (Hz): 42


• Qms: 5.88


• Qes: 0.62 (standard model)


• Qts: 0.56 (standard model)


• Vas (Liters): 4.64


• Xmech (MM): 57


• Xmax (MM): 20

Enclosure Suggestions

• Woofer Displacement (CuFt): 0.08


• Sealed Enclosure (CuFt): 0.4 - 0.08


• Ported Enclosure (CuFt): 0.75 - 1.25

Measurements:

• Frame OD (In): 8.95


• Frame OD w/ Gasket (In): 9.25


• Mounting Diameter (In): 8


• Mounting Depth (In): 6.69


• Motor Diameter (In): 7


• Motor Depth (In): 3.25


• Overall Diameter (In): 9.25


• Overall Depth (In): 8.28


• Item Weight (Lbs.): 25.10

If you want the 2508G's punch with more control and room to wire multiple subs your way, the SuperCharged D4 is the one to grab.

Accepted Payment Methods at Big Jeff Audio

At Big Jeff Audio, we strive to make your shopping experience as smooth as possible by offering a wide variety of payment options. Below is a complete list of the payment methods we accept:

Credit and Debit Cards

• Visa
• Mastercard
• American Express
• Discover
• Diners Club

Digital Wallets

• Amazon Pay
• Apple Pay
• Meta Pay (formerly Facebook Pay)
• Google Pay
• Shop Pay
• PayPal

International Payment Methods

• Bancontact
• iDEAL

Bank Transfers

• Zelle

Financing Options

We also offer financing options to make purchasing easier. Learn more about our financing options here.

• Klarna
• Affirm
• Sezzle
• Snap
• Acima
• Tiptop

If you have any questions or need assistance with payments, feel free to reach out to us at info@bigjeffaudio.com or call us at 737-BIG-JEFF.

Shipping Options and Delivery Time

Do You Offer Expedited Shipping?

Yes! At checkout, you can select from different shipping options:

• Standard Shipping: Free for orders over $100.
• Expedited Shipping: Available at an additional cost, calculated based on the weight and destination of your order.

How Long Does Delivery Take?

• Handling Time: Most orders are processed and shipped within 1 business day after receiving cleared payment. Occasionally, additional handling time may be required, but we’ll notify you if that’s the case.
• Standard Shipping: Typically takes 3-5 business days, though delivery may be affected by extreme weather or holidays.

What Happens If My Package Is Undeliverable?

If your package is refused or marked undeliverable and returned to us by the carrier, you’ll need to pay the full shipping cost to have the package resent. Alternatively, we can refund your order, minus the cost of shipping.

Why Can’t I Track My Order?

If you're having trouble tracking your order:

• Make sure you’ve received the shipping confirmation email with the tracking number.
• Log into your account on our website and use the “Check Your Order Status” button.
• If the issue persists, please refer to our detailed guide on tracking your order or contact our customer service team for further assistance.