Applications:  It is sophisticated designed and ideal for Theaters, Music Halls, Large Discotheques, Night Clubs, KTV rooms, touring events etc.BTA series speakers with self-amplifier, without extra amplifier to work for it.is applied to medium,small club,stage monitor lateral area supplementary place. BTA series has one LF has 2-Channel active amplifier can match other two models( BTA12/BTA15) freely,quickly form a complete set 3-way amplification.Can satisfy less than 500 people of medium and small places.Excellent amplifier module design inbuilt DSP processor. BTA has an outstanding sound expression and stability,do not need to care about the stoppage problem,Due to the speaker built-in limiting circuit and various protection circuit,the power amplifier and speaker at the best matching condition,It is impossible to emerge the amplifier damage or horn,because of the modular design,It is convenient to replace module when maintenance. Model BTA-812Type 12 Inch Two-way Full Range LoudspeakerFrequency response 55Hz－20kHz ± 3dBPower Handing 350W (RMS) 1400W (PEAK)Amp Output LF 300W RMS @ 8Ω Full power Inbuilt DSP processor ,Class DAmp Output HF 72W RMS @8Ω Full power, Class DSensitivity 98dB(1W@1M))Max SPL(@1m) 122dB(PEAK/1M)Coverage(H x V) 80°H×50°VLF driver 12"(310mm) wooferHF driver 1.75"compression driverNominal impedance 8 ohmSpeaker cables LF 1(+)1(-)  HF 2(+)2(-)Connector 2×NL4MP SpeakonCabinet High Density plywoodDimensions(W x H x D) 342×626×360mm(W×H×D)Net Weight 26kg