Applications:  Medium-large scale venues including stadium, concert hall, auditorium, theater, Music Halls, Night clubs, Large Discotheques, touring show, rental market etc.. AR-218SUB is used for outdoor performances fixed installation or mobile performance system of sub woofer extension, suitable for large function rooms, Grand Ballroom, large auditorium, large touring events with high demands on sub woofer. ◆ DUAL 18'' sub woofer in bass reflex enclosure ◆ Ideal SPL and dynamic sound ◆ High sensitivity with long range  ModelAR-218SUBTypeDual 18 Inch Passive Sub woofer SystemFrequency response32Hz－150Hz ± 3dBPower Handing1600W (RMS) 6400W (PEAK)Sensitivity99dB(1W@1M)Max SPL(@1m)138dB(PEAK/1M)LF driver2×18"(460mm) wooferNominal impedance4 ohmSpeaker cables1(+)1(-)Connector2×NL4MP speakonCabinetHigh Density Birch plywoodDimensions(W x H x D)1080×504×870mm(W×H×D)Net Weight96kg