X280b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。

X280b is  a high-energy line array subwoofer,using two 18-inch tweeters  unit.

Scope  of application 适用范围：

流动演出、体育场馆、剧场、礼堂、多功能厅等高水准声音重放要求的场所。  

High  standard occasions such as mobile performance,stadium ,theater,lecture hall and  multi  functional meeting rooms.

音箱技术参数

Drivers单元组成:                           2x18”Voice-coil

Frequency频率响应（-3dB）:                 33-160 hz赫兹

Sensitivity灵敏度:                         103db

MaximumSPL声压级输出:                      139db/aes连续；142db/peak峰值

Nominal  Impedance标准阻抗:                4Ω

Rated  Power输入功率:                       1200w（aes额定）/3600w（peak峰值）

Recommended  AMP功放功率要求:               1300 - 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

Handing  Position吊装:                      专业吊挂系统 Professional hanging system

Dimensions外形尺寸（h高×w宽×d深）:      580mm×1142mm×732mm

Net  Weight净重:      90kg