Specifications
Type: Dual Voice Coil Subwoofer
Series: Diamond Audio DES Series
Size: 12-inch (300mm)
Configuration: Dual 4Ω Voice Coils
Power Handling (RMS): 900W
Power Handling (Peak): 1800W
Sensitivity (1W/1m): 87dB
Frequency Response: 25Hz – 500Hz
Voice Coil Diameter: 2.75-inch (70mm) High-Temperature Copper
Voice Coil Former: Black Anodized Aluminum
Magnet Structure: Double-Stack High-Energy Ferrite Motor
Cone Material: Non-Pressed Paper Cone with Reinforced Fiber Layer
Dust Cap: Diamond Embossed Poly Dome
Surround: High-Roll Butyl Rubber
Spider: Dual Poly-Cotton Progressive Suspension
Basket: Heavy-Duty Die-Cast Aluminum Frame
Cooling System: Vented Pole Piece with 360° Perimeter Airflow
Terminal Type: Nickel-Plated 8-Gauge Compression Terminals
Mounting Depth: 6.6" (168mm)
Mounting Cutout: 11.1" (282mm)
Overall Diameter: 12.5" (318mm)
Weight: 18.5 lbs
Warranty: 1-Year Manufacturer Warranty
Performance Specs
• Delivers deep, dynamic bass with impressive control and low distortion.
• Dual 4Ω design allows flexible wiring options for 2Ω or 8Ω system configurations.
• Reinforced cone and large spider provide accurate, linear excursion under high load.
• Designed for both sealed and ported enclosures for adaptable system tuning.
• High-efficiency motor design ensures tight, impactful low-frequency output.
Key Features
• Dual 4Ω Voice Coils – Allows versatile wiring configurations for any amplifier setup.
• 2.75" Copper Voice Coil – Handles high power with excellent heat dissipation.
• Reinforced Paper Cone – Provides natural tonality and powerful midbass impact.
• Butyl Rubber Surround – Enables long excursion and extended bass depth.
• Die-Cast Aluminum Basket – Prevents flex and improves thermal management.
• High-Efficiency Cooling – Reduces power compression during long play sessions.
• Diamond Audio Engineering – Built for musical precision and long-term reliability.
Performance Integration Notes
• Ideal Pairing: Diamond HX, HXM, or DES Amplifiers rated 900–1100W RMS @ 2Ω.
• Recommended Enclosures:
• Sealed: 1.25 – 1.5 cu. ft. for tight, musical response.
• Ported: 2.25 – 2.75 cu. ft. tuned to 34–36Hz for greater low-end output.
• System Compatibility: Automotive, Marine, and Custom Installations.
• Installation Time: Approx. 1–1.5 hours.
• Pro Tip: Allow a 10-hour break-in period at moderate volume for full cone compliance and smoother low-end extension.