The Bose L1 Model II System with Double B2 Bass Package & A1 PackLite Power Amplifier is a portable amplification system that is well suited for musicians, DJs, and public speakers.

The system delivers 180° of horizontal sound coverage and smooth tonal balance across the stage and throughout the room. It includes two B2 bass modules for flexibility and power at the low end.

The package is an all-in-one innovation that replaces conventional monitors, mixers, and PA speakers. Packed with proprietary Bose technologies, the speaker system has been designed for instruments that require additional headroom and increased output in the low-frequency range such as electric basses and bass drums as well as to provide high-output playback of dance music. The amplifier can power up to 2 additional B1 bass modules, or a single additional B2 bass module.

The A1 PackLite Power Amplifier can drive other passive loudspeakers including subwoofers, floor monitors, studio monitors, and guitar cabinets. The A1 can also amplify a balanced or unbalanced signal from a line-level device such as a mixing console and drive any loudspeaker load (4-ohm minimum) that is capable of handling 250W.

Small, lightweight, powerful, and easy-to-use, the A1 amplifier can be interfaced quickly with the Bose PS1 Power Stand and B1 Bass Module to provide high bass output for demanding instruments such as bass guitars and drums. The connections are quick and easy: plug in the AC cord, connect the A1 Amplifier to the PS1 Power Stand, and play.

No time-consuming adjustments are required when the amplifier is being used with the Cylindrical Radiator loudspeaker. This amplifier automatically adjusts the bass output for more level and headroom, while maintaining a consistent tone, regardless of how many B1 bass modules are being used.