Specifications
Type: Dual Voice Coil Subwoofer
Series: Diamond Audio DMD Series
Speaker Size: 12" (300 mm)
Configuration: Dual Voice Coil (4Ω + 4Ω)
Power Handling (RMS): 200 W
Power Handling (Peak): 400 W
Nominal Impedance: 4 Ω (Per Coil)
Sensitivity (1W/1m): 86 dB
Frequency Response: 28 Hz – 500 Hz
Voice Coil Diameter: 2" (50 mm)
Voice Coil Material: Copper
Voice Coil Former: High-Temperature Aluminum Former
Cone Material: Injection-Molded Polypropylene (IMPP) Cone
Dust Cap: Diamond Audio Embossed Poly Dome
Surround Material: High-Roll Rubber Surround
Spider: Progressive Nomex® Spider
Basket: Stamped Steel Frame with Vented Motor Assembly
Magnet Type: High-Energy Ferrite Magnet
Cooling System: Ventilated Pole Piece and Voice Coil Gap
Tinsel Leads: Reinforced Braided Leads
Terminals: Spring-Loaded Nickel-Plated Push Terminals (Up to 10 AWG Wire)
Mounting Depth: 5.6" (142 mm)
Mounting Cutout Diameter: 11.1" (282 mm)
Displacement: 0.09 cu ft (2.5 L)
Recommended Enclosure (Sealed): 1.25 cu ft (35.4 L)
Recommended Enclosure (Ported): 1.75 cu ft (49.6 L) tuned @ 35 Hz
Weight: 11.4 lbs
Warranty: 1-Year Manufacturer Warranty
Performance Specs
• Optimized for strong, musical bass in compact sealed or ported enclosures.
• Dual 4Ω design provides flexible wiring for 2Ω or 8Ω configurations.
• IMPP cone and high-roll rubber surround deliver accuracy and long-lasting reliability.
• Efficient motor design offers balanced sound and thermal stability.
• Designed as a perfect upgrade from OEM systems or for entry-level subwoofer builds.
Key Features
• Dual 4Ω Voice Coils – Offers versatile wiring options for amplifier matching.
• Polypropylene Cone – Lightweight yet rigid for punchy, accurate bass.
• Rubber Surround – Provides durability and improved excursion control.
• Vented Motor System – Keeps coil temperatures low under sustained use.
• Reinforced Spider Assembly – Ensures linear motion and high excursion stability.
• Stamped Steel Basket – Provides rigid, vibration-free structure.
• Diamond Audio Engineering – Reliable entry-level performance with clean, balanced low end.
Performance Integration Notes
• Ideal Pairing: Diamond DMD500.1D, DES400.4D (bridged), or MICRO1V2 amplifiers.
• System Compatibility: Car audio, marine, or powersport subwoofer enclosures.
• Recommended Use: Single or dual subwoofer systems for balanced, musical bass.
• Installation Time: Approx. 45 minutes.
• Pro Tip: For clean response and longevity, use 12 AWG speaker wire and set subsonic filter to 28–30 Hz when using a ported box.
