12" 3000W RMS 4-Ohm 4" Dual VC Mega 70 lbs. Subwoofer Massive Audio H124XR

• Massive 3000W RMS Power Handling – Engineered with a 4" high-temp voice coil on an aluminum former for extreme output and heat resistance
• 70 lbs. Double-Stack Motor Structure – Oversized magnet delivers deep, controlled bass with incredible motor force and stability
• Kevlar-Reinforced Non-Pressed Paper Cone – Combines natural tonal response with added strength for long-lasting performance
• Dual Mirror-Stacked Nomex Spiders – Provides tight suspension control for accurate cone movement and reduced distortion
• Heavy-Gauge Direct Leads – Pre-installed for secure power delivery, reduced resistance, and easy installation

12" 3000W RMS 4-Ohm 4" Dual VC Mega 70 lbs. Subwoofer Massive Audio H124XR

This Listing Includes:

• (1) MA-H124XR 12" 3000 Watt 4-Ohm Subwoofer

Description:

Built for extreme performance and long-term durability, the Massive Audio H124XR is a 12" high-output subwoofer made for bass enthusiasts who don't compromise. Whether you're building a competition SPL setup or a hard-hitting daily driver, the H124XR brings you elite-grade bass with control, clarity, and raw power.

Engineered around a 4" aluminum voice coil and 377oz double-stacked motor, this beast is rated for 3000W RMS power handling. It delivers thunderous low-frequency output without sacrificing musicality, thanks to a Kevlar-reinforced cone, dual Nomex spiders, and an ultra-strong cast aluminum basket.

Features:

• Heavy-Duty Cast Aluminum Basket - Industrial-textured and rugged, designed to eliminate flex and handle extreme SPL conditions


• 377oz High-Energy Double Stack Strontium Magnet - Delivers massive motor force for tight, deep bass response


• Dual Impedance Black Anodized Voice Coil Former - Reinforced with Kevlar spunlace for superior thermal handling and long-term durability


• Kevlar Fiber-Reinforced Non-Pressed Paper Cone - Maintains tonal accuracy and strength with an aggressive textured finish


• Red Reinforced Stitching on Cone Edge - Adds structural integrity and reduces fatigue at high excursion


• Oversized Dual Poly/Nomex Spiders - Mirror image stacked for maximum control and linearity under heavy load


• One-Piece Black Anodized Pole Plate - Enhances magnetic force and efficiency across the coil's travel range


• Heavy-Gauge Direct Lead Wire Terminals - Secure direct input connection from amp to voice coil with minimal resistance


• Reinforced Fiberglass Woven Dust Cap - Designed for high-power use and added protection without compromising looks


• Custom Tooled Rubber Gasket and Magnet Boot - Provides a clean, professional fit and protects the motor structure during handling and install

Specifications:

• Size: 12"


• Voice Coil: Dual 4-Ohm


• RMS: 3000 Watts


• Peak Power Handling: 6000 Watts


• 4" High-Temp Voice Coil


• Magnet: 23.56 lbs. (377 oz) Double-Stack Strontium Magnet


• Fs (Resonant Frequency): 43.087 Hz


• Qms: 3.119


• Vas: 16.841 Liters


• Cms: 42.1 m/N


• Mms: 324.295 g


• RMS (Mechanical Loss): 28.13 kg/s


• SPL @2.83V/1 m: 87.53 dB


• Xmax: 21.6 mm


• Xmech: 43.2 mm


• Sd: 0.053 sq.m


• Vd): 1.146 Liters


• Weight: Over 70 lbs. - Handle with care

Recommended:

• Sealed Box: Small Internal Dimensions: 15.5" H x 13.9" x 11"


• Sealed Box Large Internal Dimensions: 22.2" x 15" x 12"


• Ported Box Small Internal Volume: 18"x13.9"x11.9"


• Ported Box Small Internal Volume: 24"x15"x12.1"

Dimensions:

• Diameter: 12.7"


• Magnet Diameter: 10.04"


• Mounting Depth: 8.87"


• Mounting Diameter: 11.06"

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.