Skip to main contentSkip to footer

Overview

The Hifonics HFX12D4 is a powerful 12-inch subwoofer designed to enhance your car audio system with deep, impactful bass. This package includes 2 speakers that feature a dual 4-ohm voice coil design, offering flexible wiring options for easy integration into various setups. With 800 watts peak power and 400 watts RMS, the subwoofer produces rich, controlled bass.

Hifonics HFX12D4 12" Subwoofer, 800W Max Car & Powersports Speaker, 1 Pair

Model: 31253
Web Code: 19775030
Sold and shipped by | 3.5 seller rating (54 reviews)

Available for deliveryAvailable online only

Delivery times vary by location. Most Marketplace items leave sellers' locations within 2 business days. Allow additional time for shipping.

Enjoy on orders from this seller.

Seller Return Policy

Read return policy

Warranty

Check with the manufacturer for details.

For Quebec residents: See the Availability Guarantee disclosure in the Specifications section below.

The Hifonics HFX12D4 is a powerful 12-inch subwoofer designed to enhance your car audio system with deep, impactful bass. This packag includes 2 speakers that feature a dual 4-ohm voice coil design, offering flexible wiring options for easy integration into various setups. Whether you're upgrading your system or starting fresh, this speaker delivers impressive low-frequency response with clarity and precision. With 800 watts peak power and 400 watts RMS, the subwoofer produces rich, controlled bass. Its heavy-gauge, powder-coated steel basket minimizes vibrations, while the pressure-treated foam surround and poly-cotton spider ensure smooth cone movement and reduced distortion. A vented aluminum former and back venting system efficiently dissipate heat, allowing for consistent, high-performance sound. Designed for versatile installation, the speaker fits sealed and vented enclosures, providing either tight or booming bass. Its 5.61-inch mounting depth accommodates various vehicle types, while spade-style terminals allow secure wiring. With an 86dB sensitivity rating, it efficiently converts power into sound without overloading your amp. For those seeking a powerful yet reliable upgrade, this pair of Hifonics HFX12D4 speakers is a solid choice. Built for performance and durability, it transforms your car’s sound system, making every drive a dynamic listening experience.

Subwoofer pair delivers up to 800W peak power and 400W RMS, providing rich, controlled bass for a dynamic car audio experience in any vehicle

Spade-style speaker terminals are quick and easy to install

Compatible with various setups, including powersports vehicles for added versatility and customization

Designed for longevity and distortion-free performance featuring a unique heavy-gauge, powder-coated steel basket, pressure-treated foam surround, and poly-cotton spider

12-inch sub has a 5.61-inch mounting depth and a 10.94-inch cutout diameter

Ideal for small sealed or medium to large vented enclosures

Voice coil: DVC 4 Ohm High Temp KSV

Surround: 1”-inch NBR Reinforced Rubber Surround

Magnet: Large Air Cooled Magnet Assembly

Spider design: Integrated One-Piece Poly Cotton Spider

Cone/Dust cap design: Injected Poly Light Rigid Cone / Poly Light Dust Cap

Back plate: Heat Dispersing, Ported

Basket material: Ultra Ridged Chrome Stamped Steel Basket

Motor cover: High Strength ABS

Sensitivity: 87.25 dB

Mounting depth: 5 5/8"

Dimensions (L x W): 12 x 12 inches

Manufacturer warranty: 1-year warranty

Quantity: 2 subwoofers

Product Condition
Brand New

For Quebec residents – Disclosure under the Consumer Protection Act

In compliance with Bill 29, Best Buy and third-party sellers on Best Buy Marketplace do not guarantee the availability of replacement parts, repair services, or maintenance information for any products. Coverage provided through any Best Buy Protection programs and applicable manufacturer warranties, if any, remain in place. Please contact the manufacturer directly for information about their availability guarantee.

Shipping Charges

Free standard shipping on all orders.

Processing Time

Most items ship within 2 business days after an order is placed*. Allow additional time for shipping to your address.
*Please note: If an item you ordered becomes unavailable, you'll be notified and a full refund will be processed within 2 business days.

Shipping Area Restrictions

Shipping is not available in the following areas*:
  • Yukon
  • Northwest Territories
  • Nunavut
*Please note: Shipping area restrictions may vary for large items. If an item can't be shipped to your address, we'll let you know during the checkout process.
See our return policy to find specific return information for this product and steps on how to return by mail.