DD Audio 718d-D4
The DD Audio 700 Series is designed for serious performance. The 718d-D4 is the 18-inch dual 4-ohm model, featuring a DD cast basket supporting a triple stack magnet motor, heavy duty suspension, and a high strength cone coupled to a massive EROM surround, making it best suited for duty in vented or multi-order enclosures.
Key Features
- Triple Stack Magnet Motor: High energy motor with back plate coil gap venting and extended pole piece
- High-Temp 3″ Voice Coil: Dual 4-ohm voice coil for 600-1200 W RMS power handling
- Triple Layer Spider System: Deep bass, high excursion heavy duty suspension
- Glass Fiber and Natural Pulp Cone: High strength cone coupled to a massive EROM surround
- DD Cast Basket: Rigid cast aluminum frame for the big 18-inch driver
- Enclosure Flexibility: Best suited for vented or multi-order enclosures
Technical Specifications
- Size: 18″ (46 cm)
- Voice Coil: 3″ (76 mm), dual 4-ohm (2 x 4 Ohm)
- Power Handling: 600-1200 W RMS, 3600 W Peak
- Fs: 26.92 Hz
- Qts: 0.523
- Qes / Qms: 0.567 / 6.79
- Vas: 170.4 L
- Xmax: 16 mm
- Xmech: 80 mm
- Mounting Diameter: 422.3 mm (16.625″)
- Mounting Depth: 266.7 mm (10.5″)
- Frame OD: 466.7 mm (18.375″)
- Displacement: 7.1 L (0.25 cu.ft.)
- Recommended Ported Enclosure: 170-227 L (6-8 cu.ft.)
- Weight: 19.5 kg (43 lbs)
When you need to move serious air, the 718d-D4 brings 18 inches of DD Audio engineering to the party.
