我公司为实体店铺在北京设有***家庭影院展示厅，并拥有THX卢卡斯认证工程师为您设计***的影音视听方案，北京的朋友可以直接到我们公司视听购买，联系电话：010-67223621在线***：122324099手机：13521560526联系人：陈经理公司网址：http://实体店地址：北京市南二环永定门桥往东100米路南JBLLS120P重低音炮KeySpecificati***300mm(12")Low-frequencytransducer400-Watts-RMShigh-output,high-efficiencyamplifierforthunderousdeep-bassextensionwithoutbreakupordistortion,evenathighlisteninglevelsHigh-qualitycabinetBeautifullypolishedhigh-gloss-ebonywoodpanelsSwitchableLFEinputAdjustablelow-passcrossoverPhaseswitchallowssubwoofertooperatewithnormalorreversepolaritySubwoofer-levelcontroltoconvenientlyadjusttherelativevolumeleveloflowfrequenciesTuned-portbassenclosureextendslow-frequencyresp***eandincreasesoverallefficiencyofthebassdriver,reducingdistortionandimprovingitspower-handlingcapacityMetalspikesandcoastersaresuppliedGeneralFrequencyResp***e25Hz–150HzAmplifierPower(RMS)400WattsPeakDynamicPower700WattsDriver300mmCrossoverFrequencies50Hz–150Hz;24dB/oct***e,continuouslyadjustableDimensi***(HxWxD)487mmx375mmx425mmWeightperSpeaker25.8kg)