DD Audio 15" 1000W RMS Dual 4 Ohm 3" VC Car Audio Subwoofer SL715-D4

• High-Power 3" Voice Coil: Delivers up to 1000W RMS with a high-temp copper design for clean, reliable bass in compact installs.
• Slim-Mount Cast Frame: Shallow aluminum frame fits tight spaces like truck boxes, motorcycles, and UTVs without sacrificing output.
• Water-Resistant Treated Cone: Built to handle moisture and harsh environments - ideal for marine, off-road, and daily driver setups.
• Legacy DD Sound Performance: Inspired by DD9000/DD4500 series, tuned for 30 - 300Hz musical accuracy and fast, punchy response.
• Competition-Ready Motor: 170mm double-stacked motor with vented back plate ensures extreme control, cooling, and high excursion.

DD Audio 15" 1000W RMS Dual 4 Ohm 3" VC Car Audio Subwoofer SL715-D4

This listing includes

• (1) 15" 1000W 4-Ohm DD Audio Subwoofer

SL700 Series Features

• Compact cast aluminum shallow-mount frame


• 3" high-temp copper voice coil for serious power


• Dual-layer spiders with integrated tinsel leads


• 170mm double-stacked motor with bumped back plate


• Free-flow vent system for improved cooling


• Treated, water-resistant non-pressed paper cone


• EROM surround for increased excursion and control


• Optimized for music-focused systems (30Hz–300Hz)


• Ideal for compact sealed or ported enclosures


• Perfect for trucks, UTVs, motorcycles, and SQ builds

Specifications:

• Speaker Size: 15"


• RMS Power Handling: 1000W


• Voice Coil Diameter: 3"


• Impedance: Dual 4 Ohm


• Piston Diameter: 15"


• Fs (Free Air Resonance): 27.7 Hz


• Qms: 6.0


• Qes: 0.73


• Qts: 0.66


• Vas: 54.9 Liters


• Xmax: 19 mm


• Xmech: 40 mm


• Woofer Displacement: 0.09 cu ft. / 2.55 liters


• Sealed Enclosure: 1.25 – 2.5 cu ft. / 25.4 – 70.8 liters


• Ported Enclosure: 1.75 – 2.75 cu ft. / 50.0 – 77.9 liters


• Shipping Weight: 26.8 lbs.


• Approximate Subwoofer Weight: 23.0 lbs.

Dimensions

• Frame OD: 15.375" / 391 mm


• Frame OD with Gasket: 15.5" / 394 mm


• Mounting Diameter: 13.875" / 352 mm


• Mounting Depth: 6.75" / 172 mm


• Motor Diameter: 6.7" / 170 mm

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.