• 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"