双18寸无源1600W/4欧带通式高效率超低频音箱 
系统指标：                                                                              
频率响应（±4dB）：30hz~150hz；                                        
系统灵敏度：100dB，1w@1m；                                                                                 
系统标称阻抗：4 Ohm；                                                          
系统额定功率（RMS）：1600W；                                 
系统额定功率（PROGRAM）：3200W；                              
换能器单元：                                                                              
低频：2×18寸（460mm，220磁100芯音圈，进口马来西亚U-Sonic纸盘，铸铝架）单元；                                                                       
物理特性：                                                                            
外壳：长方形，18mm桦木胶合夹板外壳；                                                                                        
箱体颜色工艺：黑色，水性环保漆耐磨处理，浮雕点工艺；；                                                      
连接器：NL4×2只；      重量：  KG；                                                    
产品尺寸（WHD）：1160×580×910（mm）；