The award-winning BOSE^® L1^® system contains a column of many closely spaced drivers mounted in a tall, slim enclosure. Because of its shape, the L1^® system projects sound waves that expand out and to the sides, but sends very little up and down. Sound spreads more evenly across the stage and into the audience, and the sound level drops off much more slowly than from a conventional speaker. Sound levels stay so consistent throughout the venue, there's no need for separate monitor and PA speaker systems and the L1^® system provides sound for both stage and audience. No ungainly and ugly monitors! You have complete control over your sound, and you no longer have to wonder what your audience is hearing. L1^® systems spread the sound at nearly 180 degrees, so tone quality stays smooth and even from side to side. The L1^® model II system takes this uniform coverage even further with proprietary BOSE^® Articulated Array^® speaker technology to help deliver the smoothest, most uniform coverage. Even people off to the sides can enjoy crisp, detailed sound. L1^® systems also produce much less reverberation than a typical sound system. The systems confine most of their sound energy in a wide, flat wedge of sound, projecting very little to the upper walls and ceiling. Sound remains clear and detailed, even at the back of the venue. Both you and your audience can enjoy full, detailed, tonally balanced sound whether you're at the front of the stage or the back of the house, in front of the speaker or off to the side. At Guitar Junction we know all this is true because we have been using L1^® systems ourselves for gigging for quite a while now. So, get rid of your heavy, ugly, intrusive PA, back line and monitors and experience the delight of the BOSE^® L1^® system. You can see just how user-friendly it is by going to: http://www.bose.com/musicians