The B1 bass module is our most portable option. It is considerably lighter and smaller than conventional bass enclosures, required for the same performance. And it provides the clearest amplification of low notes for most voices and instruments.

The amplifiers integrated in the power stand provide a high accuracy amplification for the L1 Model 1S and L1 Model II systems with two B1 bass modules or a B2 module. To add the second B2 bass module, it is necessary to add the A1 PackLite amplifier.
Strong bass from small premises
The B1 bass module is our most portable option. It is considerably lighter and smaller than conventional bass enclosures, required for the same performance. And it provides the clearest amplification of low notes for most voices and instruments.
Efficient design with two 13.3 cm high power speakers that produce a strong and deep bass, from a small housing.
The compact and lightweight housing is easy to transport, install and disassemble. It takes up considerably less space than the traditional bass enclosures required for the same performance. The interconnectable legs allow the safe positioning of up to four modules on their sides.
A second B1 module or a B2 bass module can be added to the Bose L1 Model 1S live sound system for more flexibility or even more power.