lk218b是一款高能量超低音箱，使用2只18寸的低频喇叭单元组成。

Lk218b is  a high-energy line array subwoofer,using two 18-inch tweeter  units.

Scope  of application 适用范围：

礼堂、多功能厅、娱乐场所等高水准声音重放要求的场所。

High  standard occasions such as auditorium ,multi functional meeting rooms and  entertainment  place.

音箱技术参数

Drivers单元组成:                            2x18”Voice-coil

Frequency频率响应（-3dB）:                  30-250hz赫兹  

Sensitivity灵敏度:                         99db分贝

MaximumSPL声压级输出:                       138db/aes连续；142db/peak峰值

Nominal  Impedance标准阻抗:                  4Ω

Rated  Power输入功率:                        1200w（aes额定）/4800w（peak峰值）

Recommended  AMP功放功率要求:                1200- 3500W 8Ω

Finish表面处理:                             黑色环保水性耐磨油漆涂装

                                            Environmentally friendly water-based

                                            wear-resistant black paint

Connectors输入连接器:                      2×Speakon  NL4MP

Dimensions外形尺寸（h高×w宽×d深）:        540mm×1142mm×706mm

Net  Weight净重:        93kg