As one of the well-known sub dual 18 inch subwoofer speaker manufacturers and suppliers in China, it is waiting for you to buy our low price sub dual 18 inch subwoofer speaker and check the quotation with our factory. The AT218B is a dual 18" subwoofer designed to be ground stacked and used with MA series full range Systems. is designed for the need to extend and increase the bass output of the entire place,The SUB218M is also suitable for all Coolbon line array systems portable full-range and installation speakers especially when high quality reproduction of low frequency sound is required.To provide a clean, deep, with the outbreak of force low frequency sound effects.FEATURES:High power 2000 W subwoofer with 2 x 18" drivers with a 100 mm (4") dual layer voice coil providing more surface area for strength and durability.Precision-made 18 mm plywood cabinet with a durable paint finish for touring and rental use.Optimized cabinet structure designed to reduce unwanted resonances and airflow noise.Designed to be ground stacked in various array configurations.Low frequency extends down to 40 Hz Designed for touring outdoor concerts stadiums fixed installation and for all demanding sound reinforcement applications.ModelSUB218MTypeDual 18"passive subwooferFrequency response40Hz-150Hz±3dBPower Handing2000W (RMS) 4000W(PEAK)Sensitivity99dB(1W@1M)Max SPL(@1m)131dB(PEAK/1M)LF driver2 x 18"(460mm) wooferNominal impedance4 ohmSpeaker cablesLF 1( )1(-)  HF 2( )2(-)Connector2× NeutrikNL4 SpeakonCabinetHigh Density plywoodDimensions（W x H x D）570×1068×780mm(W×H×D)Net Weight49kg2x18 Sub bass,dual18 inch subwoofer speakerMA series full range:://.coolbonpro.com/multi-application-speaker/classic-louderspeaker/ SUB218M dual 18 inch Subwoofer active version:://.coolbonpro.com/self-powered-speaker/self-powered-sub-bass/ba-dual-18inch-self-powered-speaker.html