Wikipedia entry

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Bose Corporation entry

L1 Portable Systems

The L1 Portable Systems are developed, supported and sold through the Bose Live Music Technology division of the Bose Commercial Systems division. These are self-contained units that being portable are used in professional audio applications. These are distinguished from other products in the Commercial Systems Division that are usually installed permanently. Initially marketed directly to performing musicians, the L1 Portable System are also widely used by DJ's.

Separate Article

L1 Personalized Amplification System

Bose makes the L1 Personalized Amplification Systems for Musicians[1]. Bose has been actively encouraging the use of the term L1™ for this product line, and frequently refers to it on their website[2] as the L1™ portable line array.

On October 15, 2003, Bose Corporation began selling the L1 Model I family of products through its internal CFDT sales division, and (in the U.S., Puerto Rico, Canada or U.S. Virgin Islands only). Guitar Center and Musicians Friend began selling these products on November 1, 2003, in stores nationwide.[3]

On March 28, 2007, Bose Corporation introduced the L1 Model II system. It became available for sale May 1, 2007, through its internal sales groups and participating authorized dealers.[4][5] At the same time the T1 ToneMatch Audio Engine was introduced[6]. This separate processor is the main input and user interface for the Model II. It is also compatible with the original L1™ System. That original L1™ System is now known simply as the L1™ Classic.[7] It was replaced by the L1™ Model I[8]. This new model looks and is functionally similar to the Classic. The L1™ Model I is RoHS compliant, as is the L1™ Model II.

On April 1, 2009, Bose Corporation introduced the L1 Compact[9]. This was significantly smaller and lighter than the previous portable line array systems. It used a 6 driver articulated array having aprroximately 180° horizontal dispersion and 40° vertical dispersion[10].

In July 2012, the L1 Model I was discontinued[11].

On September 27, 2012 Bose Corporation introduced the L1 Model 1S[12] and the B2 Bass Module[13]. The Model 1S looks identical to the Model II except that the Cylindrical Radiator® is only 12 drivers instead of 24 and it does not support the expanded bass options of the Model II[14]. The B2 Bass Module is approximately double the physical dimensions of the B1 Bass Module, and unlike the B1 it has a three-position sensing switch, allowing bass output to be adjusted for different applications[15].

Bose maintains an active Musicians Community Message Board for support, and there is an owner maintained Unofficial Wiki and FAQ.