DD Audio Power Tuned 3518i ESP
18" (46cm) subwoofer
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Description
Features
- 46cm (18") subwoofer
- Load capacity (RMS) 1200 watts
- Peak load capacity (peak) 4800 watts
- Impedance options: Double 2 Ohm or Double 4 Ohm
- Patented ferrite magnet system
- Lossless linear suspension
- Ribbed foam surround
- Magnetic protection cap incl. grid in front of the pole core hole
- Aluminum die-cast basket
Data
- Playback range 10Hz - 500Hz
- Direct current resistance (Re) 1.9Ohm
- Resonant frequency (Fs) 29.61 Hz
- Mechanische Güte (Qms) 4,38
- Elektrische Güte (Qes) 0,50
- Gesamtgüte (Qts) 0,45
- Äquivalent Volumen (Vas) 136,48 L
- Xmax +-17.5mm
- Magnet weight 350 Oz
- Coil diameter 3" (76.2mm)
ESP subwoofer features
- Carbon Fiber Blend Cone (CFB) - The CFB composition uses a potent carbon fiber-based cocktail to give you the highest strength-to-weight ratio in the industry.
- Vario-Density Extended Range of Motion Surround (V-ROM) - Provides the ultimate in linear control at high excursion while enabling dynamic sounding bass response. The control ribs are compressed to a lower density than the main surround body to provide a continuously variable control system. The harder you drive it, the more control you get.
- Tuned Spider System (TSS) - Each suspension is tuned to specific performance characteristics, e.g. High Definition, Power Handling, X-Stiff Control.
- Super-Frame (SFrame) - Maximizes the spider diameter, cone diameter, suspension deflection and thus works as a secondary shorting ring and provides additional heat dissipation for better heat flow from the coil.
- SuperCharge option possible!