As one of the well-known bt 18 inch multi-purpose sub woofer manufacturers and suppliers in China, it is waiting for you to buy our low price bt 18 inch multi-purpose sub woofer and check the quotation with our factory.Applications:  It is sophisticated designed and ideal for Theaters, Music Halls, Large Discotheques, Night Clubs, KTV rooms, touring events etc. BT series speakers use a variety of techniques of multi functional amplification system, can meet the demand perfectly and maintain VAKA system concept. BT series adopts high sensitivity driver, collect with luxuriant appearance design concept, making BT series speakers applied to the fixed installation, music, theater, language, and the most ideal performance. Meanwhile, amazing SPL, and maintain the lightweight of the system, to be the big features of BT.◆  High sensitivity and transparent sound quality ◆  Providing ideal SPL and dynamic sound ◆  Quality NL4MP professional connectors applied ensuring a direct and stable signal transmission. ◆  Using advanced painting     ModelBT-718BType18 Inch Passive Sub woofer SystemFrequency response36Hz－150Hz ±  3dBPower Handing600W (RMS) 2400W (PEAK)Sensitivity109dB(1W@1M)Max SPL(@1m)137dB(PEAK/1M)LF driver1×18"(460mm) wooferNominal impedance8 ohmSpeaker cablesLF 1(+)1(-)Connector2×NL4MP SpeakonCabinetHigh Density plywoodDimensions(W x H x D)650×575×680mm(W×H×D)Net Weight41kg