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Diamond Audio 12" HEX Series Dual Voice Coil Subwoofer (4Ω) - H124

Diamond Audio 12" HEX Series Dual Voice Coil Subwoofer (4Ω) - H124

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Diamond Audio 12" HEX Series Dual Voice Coil Subwoofer (4Ω) - H124

Step into a new dimension of bass performance with the Diamond Audio H124 HEX Series 12-inch dual voice coil subwoofer (4Ω), engineered for high-output car audio systems that demand precision, durability, and serious low-frequency impact. Built using advanced technology inspired by the flagship HEX PRO lineup, this 12" subwoofer delivers powerful, musical bass with exceptional control.

At the core of the H124 HEX 12-inch subwoofer is a massive 3-inch high-temperature dual voice coil, wound on a reinforced aluminum former to ensure consistent performance under heavy power loads. With 600W RMS and 1200W MAX power handling, this car audio subwoofer produces deep, punchy bass while maintaining clarity and low distortion. The dual 4-ohm voice coil configuration provides flexible wiring options, making it easy to match with a wide range of amplifiers.

Designed for durability and thermal efficiency, the HEX Series subwoofer features a rugged cast aluminum basket combined with a solid-core aluminum radial heat sink. This advanced cooling system effectively dissipates heat, reducing power compression and allowing for extended high-performance listening sessions.

The fiber weave cone, reinforced with a treated paper backing, delivers fast transient response and excellent rigidity. This results in tight, accurate bass reproduction with impressive low-frequency extension, making it ideal for both daily listening and high-output builds.

Additional premium construction includes a robust motor structure and high-strength materials, ensuring long-term reliability in demanding installations.

The Diamond Audio HEX Series 12-inch subwoofer delivers deep, controlled, and powerful bass, making it the perfect upgrade for performance-driven car audio systems that demand strength, clarity, and precision.

Features

12" dual voice coil subwoofer (4Ω)
600W RMS / 1200W MAX power handling
3" high-temperature voice coil for consistent output
Cast aluminum frame with radial heat sink cooling
Fiber weave cone for precise, musical bass
Flexible wiring for custom system integration
Built for high-output and long-term reliability

What our Experts Think  
  • Powerful 12" bass upgrade – The H124 HEX Series is engineered to deliver deep, controlled bass with impressive musical accuracy for daily drivers and high-performance car audio systems.
  • High-power handling – Rated at 600W RMS / 1200W Max, it's an excellent choice for enthusiasts seeking strong, distortion-free low-frequency performance.
  • Flexible dual voice coil design – The 4Ω dual voice coil configuration offers multiple wiring options, making it easy to match with a wide range of monoblock amplifiers.
  • Advanced cooling system – Features a cast aluminum basket, solid-core aluminum radial heat sink, and 3" high-temperature voice coils to improve heat dissipation and maintain consistent output during demanding sessions.
  • Fast, accurate bass response – The fiber weave cone with reinforced paper backing delivers tight, punchy bass with excellent low-frequency extension and reduced distortion.
  • Built for long-term reliability – Premium construction and a robust motor structure ensure dependable performance in both daily-driven and high-output audio systems.
  • Versatile enclosure compatibility – Optimized for both sealed and ported enclosures, allowing installers to tune the system for sound quality or maximum output.
  • Expert choice for custom installs – An excellent option for enthusiasts looking for powerful, accurate bass with premium HEX Series engineering and installation flexibility.
 
Q&A    

Q: What is the Diamond Audio H124 designed for?
A: It is a 12-inch HEX Series dual voice coil subwoofer built for deep, powerful bass in custom car audio systems.

Q: What is the subwoofer impedance?
A: The H124 features a 4-ohm dual voice coil (4Ω DVC) design for flexible amplifier wiring options.

Q: What are the benefits of a dual voice coil subwoofer?
A: Dual voice coils provide greater wiring flexibility and make it easier to match compatible amplifiers.

Q: What type of sound performance can I expect?
A: It delivers deep low-frequency response, strong bass output, and controlled performance for upgraded audio systems.

Q: Is the H124 suitable for vehicle audio upgrades?
A: Yes. It is ideal for car and truck audio enthusiasts seeking powerful bass and premium sound quality.


Maintenance Tips    
  • Clean the subwoofer cone, surround, and enclosure with a soft, dry microfiber cloth.
  • Keep the subwoofer protected from dust, moisture, and debris.
  • Inspect speaker terminals and wiring regularly for secure, corrosion-free connections.
  • Verify dual voice coil wiring is correctly configured and firmly connected.
  • Ensure the enclosure is securely mounted to reduce vibration and rattling.
  • Avoid prolonged playback at maximum volume to prevent overheating and distortion.
  • Set amplifier gain and crossover controls properly to protect the subwoofer.
  • Inspect the cone and surround periodically for cracks, tears, or signs of wear.