Parameters Model No.: JPa12 12"-2Way Passive PA/Stage Speaker Frequency: 45Hz-20KHz Normal Impedance: 8 Ohm SPL: 95dB RMS/Musical/Max.Power: 250W/500W/1000W Durable & thick carpet protection for 15mm LDF wooden cabinet Metal grill and handle Floor cushion for speaker stand 35mm ABS Plastic Pole mount built-in HF crossover with PTC Protection built-in 1" Mylar compression tweeter drive 12" long-throw composite woofer Dual 1/4" input and output Size: 40.5*32.3*59.4cm Model No.: JPa15 15"-2Way Passive PA/Stage Speaker Frequency: 40Hz-20KHz Normal Impedance: 8 Ohm SPL: 97dB RMS/Musical/Max.Power: 300W/600W/1200W Durable & thick carpet protection for 15mm LDF wooden cabinet Metal grill and handle Floor cushion for speaker stand 35mm ABS Plastic Pole mount built-in HF crossover with PTC Protection built-in 1" Mylar compression tweeter drive 15" long-throw composite woofer Dual 1/4" input and output Size: 40.5*32.3*59.4cm Model No.: JPa215 Dual 15"-2Way Passive PA/Stage Speaker Frequency: 45Hz-20KHz Normal Impedance: 4 Ohm SPL: 98dB RMS/Musical/Max.Power: 400W/800W/1600W Durable & thick carpet protection for 15mm LDF wooden cabinet Metal grill and handle Floor cushion for speaker stand HF crossover with PTC Protection built-in 1" Mylar compression tweeter drive Dual 15" long-throw composite woofer Dual 1/4" input and output Size: 47*47*110cm Model No.: JPa18SB 18" Passive PA/Stage Subwoofer System Frequency: 35Hz-250Hz Normal Impedance: 4Ohm SPL: 96dB RMS/Musical/Max.Power: 300W/600W/1200W Durable & thick carpet protection for 15mm LDF wooden cabinet Metal grill and handle Floor cushion for speaker stand 35mm ABS Plastic Pole mount built-in Integrated sound port 18" compact low frequency subwoofer Dual 1/4" input and output Size: 55.5*50*64.5cm 15" Subwoofer will be avaiable Model No.: JPa12M 12"-2Way PA/Stage Speaker / Floor Monitor Frequency: 35Hz-20KHz Normal Impedance: 8 Ohm SPL: 98dB RMS/Musical/Max.Power: 250W/500W/1000W Durable & thick carpet protection for 12mm MDF wooden cabinet Metal grill and handle Floor cushion for speaker stand 35mm ABS Plastic Pole mount built-in HF crossover with PTC Protection built-in 1" Mylar compression tweeter drive 12" long-throw composite woofer Dual 1/4" input and output Size: 37*38*60cm Model No.: JPa218SB Dual 18" Passive PA/Stage Subwoofer System Frequency: 35Hz-300Hz Normal Impedance: 4Ohm SPL: 96dB RMS/Musical/Max.Power: 600W/1200W/2400W Durable & thick carpet protection for 18mm MDF wooden cabinet Metal grill and handle Integrated sound port 18" compact low frequency subwoofer Dual 1/4" input and output Size: 67.9*52.7*118cm