Great working condition. I have 3 L1 units and need to sell one.  I have a classic rock band and play to crowds of 50-500 people with these awesome PA systems.  The set up and break down time is so short we can get in and out quickly.  The power is enormous and the 180 degree coverage is helpful. We perform with them behind us and in front. You can buy a light hanger option and place your lights on it easily.  In my opinion the original L1 was the best of them all.The Bose L1 systems are a revolution in public address systems, providing compact yet powerful and -most importantly - great sounding amplification for musicians and other entertainers. L1 systems are modular so you can configure your Bose L1 system to be whatever you want. Whether you just need easy-to-transport amplification for a coffee shop gig or an earth shaking yet discreet P.A. rig for a show to promote a product or business, the L1 can be set up to fit your application.About the Bose L1 SystemsUnique, all-in-one system delivers clear, powerful sound across the stage and throughout small to medium-sized venues. Hear what your audience hears, and eliminate conventional monitors, mixers and PA systems.Based on over 10 years of groundbreaking research, the L1 Model I concert sound system features the Cylindrical Radiator loudspeaker, available only from Bose. Its proprietary, vertical design helps fill the room with clear sound like no ordinary concert speaker can.As Guitar World describes it, "... the sound radiates and fills the room in a way far more natural than a typical loudspeaker ... it's a real breakthrough in amplified sound..."Benefits of an L1 systemProjects clean, detailed sound evenly across the stage and throughout an audience of up to several hundred, with little change in tone or volumeProduces smooth, consistent tone, whether you're in front of the loudspeaker or off to the sideReduces much unwanted room reverberationEliminates conventional monitors, mixers and PASets up and breaks down quickly; fits easily into a car trunkWide, uniform coverage-throughout the roomThe innovative Cylindrical Radiator loudspeaker has a line array of 24 small drivers mounted into a vertical enclosure for wide, horizontal sound coverage of nearly 180 degrees. In comparison to conventional stage speakers, volume and tone diminish very slowly over distance.The loudspeaker's wedge-shaped dispersion pattern sends very little audio up or down, preventing much of the room reverberation that can muddy your sound.Unlike traditional amplification setups, a Bose L1 system lets you, your fellow musicians and the audience hear the same sound. You don't need any other stage monitors, mixers or PA speakers. Your L1 system replaces them all with one sleek, powerful setup.Built-in amps, mixer and ToneMatch presetsThe Bose L1 Model I power stand includes built-in amplifiers to drive the loudspeaker and up to two B1 bass modules. It also has an integrated four-channel mixer with two XLR and two line-level inputs.Onboard ToneMatch presets-another Bose exclusive-let you quickly optimize the tone of up to 100 specific instruments and microphones at the touch of a button. For more inputs and a suite of effects and tone-shaping tools, add the optional T1 ToneMatch audio engine.Small, powerful bass optionsB1 bass modules are considerably lighter and smaller than traditional bass bins required for the same performance. The L1 Model I basic package comes without a bass module and is recommended for higher range voices and instruments.The L1 Model I single bass package is recommended for midrange voices and instruments, including acoustic guitars, keyboards and horns.Light, easy, fastL1 systems are noticeably lightweight and compact, fitting easily into the trunk of a small car. And setup and breakdown take just minutes.