inputs.text: liberty 7501 companion speaker - anchor audios liberty platinum system newest version first far know worlds first portable sound system lib7501 unpowered companion speaker connects liberty platinum 7500 acdc ac powered speaker ups volume power connecting existing speaker systemapplications school assemblies large corporate meetings celebrations outdoor concertsshows halftime shows sporting events etcspecs lightweight enclosure uv treated polypropylene scratch resistant ultra rugged case integrated carrying handle speaker stand receptacle control panel recessed inputs knobs protection 120 watts ac mode 100 watts dc mode optional builtin mp3cd player usb port charge usb device 1 wireless receiver 2 wired mic inputs capable receiving unbalanced 14\\ balanced xlr signals via clever combination input jack 5v usb power output 12v dc power output liberty platinum also introduced 10\\ neodymium woofer adds low end base system led bar indicator indicates charging status fieldupgradable uhf diversity wireless surfacemount circuit board technology lowlead content foolproof neutrik speakon technology universal microphone jack versatile rca stereo miniplug line efficient battery management two 12 volt batteries keep liberty platinum running loud clear 6 hours single charge batteries user accessible easy replaceall features show much time work research gone make liberty platinum best portable sound system marketolivia burdbrand ambassadoranchor audio inc