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In the box

L1® Model II system with B1 bass and ToneMatch® audio engine

  • Recommended for audiences up to 500
  • 24-speaker articulated line array delivers 180-degree horizontal sound coverage
  • Produces the most consistent tonal balance with little volume drop-off over distance
  • System's interconnecting pieces allow for efficient transport, easy setup and breakdown
  • Four-channel ToneMatch audio engine with studio class effects
  • One B1 bass module included

Boost your performance with the L1 Model II system, our most advanced portable amplification system for musicians, DJs and public speakers. The loudspeaker delivers 180 degrees of horizontal sound coverage and our smoothest tonal balance—across the stage and throughout the room. And the ToneMatch audio engine provides a suite of studio-class effects and tone-shaping tools to give you just the sound you're looking for. Includes one B1 bass module for enhanced low-end performance.

Our premium sound system for musicians combines the L1 Model II system and T1 ToneMatch audio engine. This professional sound system provides wide coverage, smooth tonal balance and a suite of studio-class effects and tone-shaping tools. And it's packed with proprietary Bose technologies designed to improve your amplified sound.

Sound advantages—only from Bose

The system's breakthrough loudspeaker produces wide, uniform sound coverage of nearly 180 degrees—onstage and throughout an audience of up to several hundred—with little dropoff in volume and tone.

The Model II system also features Articulated Array speaker technology for better tonal balance. The loudspeaker's 24 vertically mounted drivers are precisely angled to create clearer highs and more consistent tone in the room. Even people off to the sides of these stage speakers enjoy well-balanced, detailed sound.

Powerful multichannel audio engine

Combining the T1 ToneMatch audio engine with your L1 system expands your options to connect additional instruments and microphones. You can also use the ToneMatch engine to fine-tune your sound with powerful, proprietary tone-shaping tools.

The compact, four-channel engine provides fingertip control of a library of ToneMatch presets. Just touch a button to make hundreds of precise refinements to the sound of instruments and microphones.

The engine also features a complete suite of studio-class reverbs, additional effects and dynamics processing. It connects to the L1 Model II system via a single digital cable for quick, streamlined setup.

Deep bass from small enclosures

The B1 bass module is our more portable bass option. It is considerably lighter and smaller than conventional bass bins required for the same performance. And it ensures more accurate amplification of lower notes for most voices and instruments.

With the L1 Model II system you can power up to two B1 bass modules or one B2 module on a single power stand. And the optional PackLite® power amplifier lets you add a second B2 bass module for maximum low-end power.

Easy and efficient

The L1 Model II power stand weighs only 24 pounds, and its four retractable legs make it easy to transport and set up. The power stand also has a simplified control section; the single line-level input can be used with instruments, mics, mixers, laptops, MP3 players or DVD systems.

All of the system's components are also built to handle the road. The loudspeaker has a rugged, reinforced grille, and each package includes padded carrying bags for major components.

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Spacial Dispersion and Articulated Array speaker technologies, available only from Bose

Spatial Dispersion™ and Articulated Array® speaker technologies in the loudspeaker produce wide, uniform sound coverage. The 24 small drivers are arranged using Articulated Array speaker technology in a slim, vertical enclosure—creating nearly 180 degrees of horizontal coverage and consistent tonal balance.

Built-in power amps to drive the loudspeaker and up to two B1 or one B2 bass modules

Integrated power amplifiers in the power stand provide clean, precise amplification for L1 Model II system with up to two B1 bass modules or one B2 bass module.

Digital audio and power connection for ToneMatch mixer

ToneMatch® port on power stand for digital audio and power connection to ToneMatch audio engine.

Analog input, trim control and signal/clip LED, only from Bose

Analog input, trim control and signal/clip LED for line-level analog input via ¼" TRS phone cable. Can be used for instruments or other audio sources like DJ mixers, MP3 players, computers or DVD systems.

Bass module out for amplified bass output signal to bass module

Bass module out for amplified bass output signal to the bass module. L1 system automatically adjusts equalization appropriately when bass modules are connected.

Bass line out delivers post-DSP bass signal output. Accepts ¼" TRS phone cable. Use to connect powered subwoofer, additional amplification system or Bose® PackLite® amplifier with up to two additional bass modules.

Retractable legs provide stability for power stands and loudspeakers

Retractable legs provide stability for streamlined power stands and loudspeakers. Four retractable legs fold out of power stand simultaneously for quick setup and compact transport.

Carry bags for loudspeaker, power stand and bass module make it easy to transport the system

Convenient carry bags—one each for the loudspeaker, power stand and bass module—make getting to and from your gig that much easier.

B1 bass module


Compact, lightweight enclosure is easy to transport, set up and break down. Small footprint takes up considerably less space than traditional bass cabs required for same performance. Interlocking feet let you securely stack up to four modules together on their sides.

Bass module's highly efficient speaker design delivers deep, strong bass from small enclosureBass module's highly efficient speaker design delivers deep, strong bass from small enclosure

Highly efficient speaker design features two 5.25" (13.3 cm), high-output, high-excursion drivers that produce deep, strong bass from a small enclosure. When connected to power stand, active equalization circuitry automatically adjusts bass signal appropriately.

ToneMatch audio engine


T1 ToneMatch audio engine features proprietary Bose audio technologies for live sound

Integrated ToneMatch audio engine and audio technologies provide four independent channels featuring a library of ToneMatch instrument and microphone presets, proprietary zEQ and a complete suite of studio-class effects and sound processors.

Engine includes more than 100 ToneMatch presets for popular instruments and mics

Proprietary ToneMatch presets optimize L1 system to match intended natural sound of specific instruments and vocal mics. More than 100 presets are organized into quick-access banks and can be independently assigned to each channel. Free ongoing updates via USB connection between your computer and ToneMatch audio engine.

Bose zEQ adjusts range of tone controls to match vocals and instruments

Proprietary zEQ automatically adjusts the range of tone controls to match your voice or instrument, making it easier to fine tune your sound. Conventional mixers may have fixed EQ ranges that don't accurately affect desired frequencies when adjusted. But zEQ appropriately redefines low, mid and high frequency ranges of specified sources.

Single-band ParaEQ centers on frequency you specify for each independent channel. Valuable tool for reshaping problematic frequencies in certain venues.

Five reverb types (small, medium, large, plate and cavern) available for global assignment, with individual channel controls for decay time, mix level and brightness.

Three delay types (analog, digital and tape) can be independently assigned to selected channels, with control over feedback time and mix level for each channel. For example, you can select tape delay for your vocal on channel 1 and analog delay for your guitar on channel 2.

Ten modulation effects (three chorus types, two flange types, four phaser types and one vintage tremolo effect) can be independently assigned to selected channels, with control over designated parameters for each channel.

Seven dynamics processing types (three compressors, limiter, de-esser, kick gate and noise gate) can be assigned to independent channels.

Scenes allow you to store, recall and edit "snapshots" of all key ToneMatch audio engine settings at any given time. This feature helps simplify setup when you're using an L1 system repeatedly in different venues. The engine includes five predefined Bose scenes, five My scenes and five Shared scenes you can give to other L1 owners.

Chromatic tuner for convenient tuning of instruments.

Large backlit display with intuitive layout and easy-to-read text for modes and settings.

Rotary encoder for quick access to modes, effects and parameters, including ToneMatch presets, zEQ, ParaEQ, reverbs, delays, modulators, dynamics processing, scenes and tuner. Features clean, circular layout.

Aux mode (channels 1 – 3) send channels' dry, pre-fader or post-fader audio to aux output for connection to additional L1 systems or recording devices. Independent level controls for optimal signal output.

Channel volume, mute and FX mute (1 – 4/5) for adjusting individual channel volume, muting individual channels and muting all effects on selected channels.

Master volume adjusts overall level of master output.

Phantom power applies +48V power to input channels 1 – 3 to drive specific microphones.

ToneMatch cable transfers audio signals and provides power to ToneMatch audio engine from L1 power stand.

Mounting bar and carriage securely attaches ToneMatch audio engine to L1 loudspeaker.

Cover and carrying case help protect engine when storing and transporting.

More info

Included items

L1 Model II with B1 bass

Components in box

T1 ToneMatch audio engine

Components in box


L1 Model II Cylindrical Radiator® loudspeaker top

43.5"H x 3.5"W x 4"D ( 110.5 cm x 9 cm x 10.5 cm )

16.3 lbs (7.4 kg)

L1 Model II Cylindrical Radiator® loudspeaker bottom

43.5"H x 3.5"W x 4"D ( 110.5 cm x 9 cm x 10.5 cm )

17.4 lbs (7.9 kg)

L1 Model II power stand

5"H x 10"W x 27"D ( 12.8 cm x 26.2 cm x 69.2 cm )

23.7 lbs (10.7 kg)

B1 bass module

15"H x 10.25"W x 17.75"D ( 38 cm x 26 cm x 45 cm )

25.1 lbs (11.4 kg)

T1 ToneMatch audio engine


Mic/line inputs (1 - 3) feature combination analog connectors accepting balanced XLR or unbalanced ¼" TRS audio cables.

Line inputs (4/5, L/R) for analog stereo connections to keyboards, mixers and computers. Inputs accept balanced ¼" TRS cable. Edit control affects both channels.

Trim controls and signal/clip LEDs (1 - 4/5) for adjusting levels of input signals. Green/yellow/red LEDs show signal status and help you set gain levels properly.

Preamp outputs (1 - 3) for connecting channels' dry output signals to recording gear or other amplifiers via balanced ¼" TRS cable.

Aux output can be used with aux mode to create independent submix of channels 1 - 4/5 to route to other amplifiers or recording gear.

Master analog output for connecting to additional L1 systems, amplifiers or recording gear via balanced ¼" TRS cable. Select from pre- or post-master volume settings.

ToneMatch port to connect digital output of engine to L1 Model II power stand via included ToneMatch digital cable.

USB port for updating ToneMatch audio engine and backing up scenes via USB connection to your computer.

2.67"H x 6.5"W x 8.25"D ( 6.76 cm x 16.6 cm x 20.9 cm )

2.1 lbs (1 kg)


  1. Expand/Contract Is this L1 system really a "plug and play" solution? How long does it take to set up?

    All L1 systems feature easy-to-assemble components that take just a few minutes to set up. Each component is relatively lightweight and can be carried by one person with no need for special equipment.

  2. Expand/Contract Does every musician need his or her own L1 system?

    No. In some cases—for example, amplifying a larger group on a small stage—testing showed two or more musicians standing or sitting next to each other could share one L1 unit without significantly reducing the core benefits of the system.

  3. Expand/Contract In what types of venues can I use this L1 system?

    L1 systems work well in small-to-medium size venues where the majority of live music and spoken-word performances take place—including clubs, coffeehouses, auditoriums, gymnasiums and houses of worship.

  4. Expand/Contract Can the system be used as a traditional PA?

    Yes. You can use this L1 system to replace conventional PA mixers and speakers.

  5. Expand/Contract For what types of instruments and voices is this system recommended?

    The L1 Model II with B1 bass is recommended for most vocalists, public speakers and midrange instruments, like guitars, keyboards and horns. The ToneMatch audio engine enables setups requiring up to four individual inputs.

  6. Expand/Contract What are the benefits of including the T1 ToneMatch audio engine with this system?

    Adding the ToneMatch audio engine immediately expands the system's input capacity from one channel to four channels. The compact engine also features a library of ToneMatch presets and a complete suite of studio-class reverbs, effects and dynamics processing—for exceptional amplified tone.

  7. Expand/Contract Can I add more bass modules?

    Yes. The system has enough built-in power to handle two B1 bass modules or one B2 bass module. You can further expand the system (for a total of four B1 or two B2 bass modules) with our optional Packlite® power amplifier.

  8. Expand/Contract Where can I find more technical information and discussions about L1 systems?

    Visit the L1 Systems Users Forum for extensive technical discussions, interactive tools, videos and other helpful resources for L1 systems.


L1 Model II system

B1 bass module

T1 ToneMatch audio engine

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Owner's information


Presets and firmware downloads » 

See the latest presets and firmware for the ToneMatch® audio engine and L1 systems.

L1 Systems Users Forum

Visit the forum » 

Browse the forum discussions about L1 systems and the Bose® approach to live sound.

Bass expansion

B2 bass module

The B2 bass module delivers the most low-frequency output for L1® system users who require more powerful bass for larger audiences. The rugged enclosure encases two 10-inch woofers.

Compatible with:

  • L1® Model II, L1 Model 1S and L1 Model I

View more details »

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B2 bass module


Color: Black



B1 bass module

Delivers depth and impact of such instruments as bass guitars, drums and low voices. Low-pitched wind or string instruments, guitars and keyboards can also benefit from the additional low-end output the B1 bass module provides.

Compatible with:

  • L1® Model II, L1 Model 1S and L1 Model I systems

View more details »

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B1 bass module


Color: Black



PackLite® power amplifier Model A1

Designed for instruments that require additional headroom and increased output in the deep bass range, such as electric bass, bass drum and high-output playback of dance music.

Compatible with:

  • L1® Model I and Model II systems

View more details »

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Color: Black



Cables and cords

Power stand power cord - 120V

Power cord designed for the electrical current demands of a 120-volt power stand. Connects power stand to AC outlet.

Compatible with:

  • L1® Compact, Model II, Model 1S and Model I systems

View more details »

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Color: No Color

No longer available


B1/B2 bass module cable - 5.5' (1.7 m)

Heavy-duty, four-pin cable connects bass module to the power stand.

Compatible with:

  • L1® Model II, Model 1S and Model I systems

View more details »

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Color: No Color



Carry bags

Standard B1 slip cover

Standard slip cover for the B1 bass module. Cover is a direct replacement for the cover included with the L1 Model I bass packages.

Compatible with:

  • B1 bass module

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Color: Black



Carry pouch for A1 amplifier

Standard nylon protective pouch for the PackLite® power amplifier Model A1.

Compatible with:

  • PackLite® power amplifier Model A1

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Color: Black




T1 ToneMatch® audio engine microphone stand bracket

Mount your ToneMatch audio engine to a microphone stand securely with this convenient, custom bracket. Fast, easy setup.

Compatible with:

  • T1 ToneMatch® audio engine

View more details »

Click for details

Color: Black