718d - Designed & Engineered in the USA
Overview
The 700 series is designed for serious performance. It features 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 them best suited for duty in vented or multi-order enclosures.
Any DD Audio Product bearing the Marine Grade logo incorporates water resistant features enabling it to be used in applications where moderate exposure to moisture will not result in damage to the product.
Marine Grade products are not waterproof, and submersion or excessive moisture exposure may result in product failure. DD Audio Marine Grade products are not certified for saltwater environments.
Features
- EROM surround
- High-temp, 3.0”, voice coil
- Triple layer Deep bass, high excursion spider system
- Unique glass fiber and natural pulp cone
- Back plate coil gap venting
- Extended pole piece
- DD cast basket
Specifications
- MODEL7 18D
- Driver Size 18"
- Watts RMS 600- 1200
- Peak Power 3600
- VCD 3
- Impedance D2 / D4
- Piston Dia – in 15 1/2
- Fs – Hz 26.92
- Qms 6.79
- Qes 0.567
- Qts 0.5233
- Vas – liters 170.4
- Xmech – mm 80
- Xmax – mm 16
- Frame OD – in 18 3/8
- Frame OD w/Gasket - in 18 1/2
- Mounting Diameter – in 16 5/8
- Mounting Depth – in 10 1/2
- Motor Diameter – in 7 3/4
- Motor Depth – in 3 1/2
- Woofer Displacement - cu ft 0.25
- Sealed Enclosure - cu ft N/A
- Ported Enclosure - cu ft 6.0 - 8.0
- Shipping Weight – lbs 43
Additional Product Information
Documentation
