DD Audio 9918 D2 18" Subwoofer "The Beast"

DD Audio 9918 D2 - "The Beast"

The Beast is back. And better than ever.

In the early 2000s, DD's 9900 series was dubbed The Beast. After a long hiatus, The Beast has returned, better than ever. The latest version is designed to meet the demands of ultra-low frequencies found in modern music.

Drivers in this series can be driven for long periods at very high power with long excursions. The driver is optimized for operation at 1500-2500 watts and can momentarily withstand up to 10,000 watts.

A look at the driver's motor reveals where the name The Beast comes from. The magnet is over three inches high and ten inches wide. The precisely machined magnet structure houses a 4" voice coil. The mechanical excursion is over three inches, and even at its extremes, the voice coil remains sufficiently within the magnet to maintain control of the driver.

Features

• 18" subwoofer
• "The Beast" - back and better than ever
• Designed for ultra-low frequencies
• 4" voice coil
• Cast frame
• Dual 2Ω voice coil
• Magnet weight: 31.7 kg
• Xmax: ±22mm
• Xmech: 100mm

Technical specifications

• Size: 18"
• Impedance: 2x2Ω (dual voice coil)
• Power handling RMS: 2500W
• Power handling Peak: 10,000W
• Voice coil: 4"
• Magnet weight: 31.7 kg
• Driver displacement: 9.4 liters
• Recommended ported enclosure: 140-170 liters (net)
• Xmax: ±22mm
• Xmech: 100mm
• Qts: 0.49
• Fs: 36.09Hz
• Vas: 85.15 liters
• Mounting depth: 267mm
• Mounting hole diameter: 429mm