X18B 18" Subwoofer Special 18" subwoofer with a 4" voice coil and a long cone excursion for minimal distortion at full power and high efficiency and high power handling capacity (600 Watt). • Large wooden vent for minimal noise. • Optimal Q-load for a very smooth and deep frequency response. • Switchable active/passive crossover usage. (No disassembly of the passive crossover needed) • Phase reverse switch for the satellite system for maximum sound pressure with less power. • Advanced transducer cooling system for higher power handling capacity. • Black spray painted 18mm plywood cabinet (13 layers). The DAP X-Series is a new collection of professional high quality loudspeaker systems which are designed and developed by the DAP Audio R&D department in the Netherlands. Special attention is given to the transducers, high drivers, horn flares and passive crossovers, which will result in a wide coverage of the audience, optimal off-axis response (no mid dip) and optimal throw. The result is higher power handling capacity, high efficiency and a very wide and smooth frequency response at any listening position. All the transducers have optimized Thiele Small Parameters and the high drivers have a very high efficiency which gives the freedom of more power handling capacity, usage of high frequency correction and a transparent sound at the highest frequencies. Technical Info Nominal Impedance: 8 Ohm RMS Power Rating: 600 Watt Program Power Rating: 1200 Watt Peak Power Rating: 2400 Watt Crossover Frequency L-H: 160Hz, 12-6 dB/oct Sensitivity (Half Space): 104 dB/W/m Maximum SPL at 1m: 138dB Frequency Range: (-10 dB): 32-160Hz Frequency Response: (±3 dB): 38-160Hz Pin Connection: 1+/1- Dimensions (WxHxD): 600x760x600cm Net Weight: 49Kg