- HIGH-POWER MOTOR STRUCTURE: Enlarged 7” motor with 20mm top plate for superior control and output
- THERMAL CONTROL SYSTEM: Dual-stage aluminum heatsinks with Free Flow cooling for consistent performance
- SMOOTH EXCURSION DESIGN: 2nd Gen V-ROM surround with triple density expansion joint
- REINFORCED SUSPENSION: Iron cloth double spider system for durability under heavy load
- LIGHTWEIGHT STRENGTH CONE: Carbon fiber loaded non-pressed pulp cone for fast, accurate response
- PRECISION DD BUILD: Hand-laid carbon fiber dust cap and ESP cast frame
- DIRECT SIGNAL TRANSFER: Laminated tinsel leads with direct leads for reliability
- SMART WIRING (D4): Dual 4-ohm coils allow 2-ohm or 8-ohm configurations
DD Audio 2508G 8 Inch 1200 Watts RMS Dual 4-Ohm Competition Subwoofer
This listing includes
- (1) 8" 4-Ohm Subwoofer 2508G-D4
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.
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
- 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
- Watts Peak: 3600
- Impedance: D4
- VCD (In): 2.5
- Piston Diameter (In): 7.25
Thiele and Small Parameters:
- Fs (Hz): 42
- Qms: 5.88
- Qes: 0.62
- Qts: 0.56
- 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
Custom & Supercharged Options
Looking for something beyond the standard setup? Select DD Audio competition subwoofers may be available with custom-built or Supercharged configurations for customers looking to take their system to the next level.
Contact Big Jeff Audio to discuss available custom options, compatibility, pricing, and lead times before ordering.
Please Note: Custom and Supercharged configurations are not included with the standard product listing. Availability, specifications, pricing, and build times may vary by model and configuration.
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
Bank Transfers
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.
