Bose L1 II Manual

The Bose L1 II is a portable line array speaker system designed for musicians, DJs, and presenters. It features a compact tower design with integrated power amplifiers, multiple input channels with tone controls, ToneMatch processing, built-in mixers, and remote control capability. The system is engineered for wide, even coverage and easy setup. Below are key sections for safety, features, setup, operation, and troubleshooting.

Features at a Glance

Key components: L1 II Tower (with array speakers and power amplifiers), Bass Module, Remote Control, Power Cables, and Connection Cables.

Feature	Description
Line Array Speakers	Provides wide, even sound dispersion for audience coverage
Integrated Power Amplifiers	Built-in amps for both array and bass module
Multiple Input Channels	Typically 3-4 channels with individual volume, tone controls
ToneMatch Processing	Preset EQ settings optimized for specific microphones and instruments
Built-in Mixer	Basic mixing capabilities on some models
Remote Control	Wireless remote for volume and mute adjustments from a distance
Compact Tower Design	Portable, easy to transport and assemble
Bass Module Connection	Dedicated output for connecting the included bass module
AUX Input	For connecting music players or other audio sources
Power Switch	Main power control on the base of the tower or bass module

Unpacking and Setup

Unpack all components and inspect for damage. Place on a stable, level surface.

1. Assemble the Tower: Connect the array sections together as per instructions.
2. Position the Bass Module: Place it near the tower or in an optimal location for bass response.
3. Make Electrical Connections: Connect the tower to the bass module using the provided cable. Plug the power cords into the units and then into a grounded AC outlet.
4. Connect Audio Sources: Use the input channels for microphones, instruments, or music players.

WARNING! The tower and bass module are heavy. Use proper lifting techniques or get assistance to avoid injury.

First-Time Configuration

Power on the system; all controls should be at their minimum settings initially.

1. Set Input Levels: Start with all channel volume knobs at minimum. Power on your sources, then slowly increase the volume for each channel to a nominal level, avoiding feedback or distortion.
2. Select ToneMatch Presets: If using a supported Bose microphone or instrument, engage the corresponding ToneMatch preset on that channel for optimized sound.
3. Adjust Master Volume: Use the master volume control to set the overall output level.
4. Test the Remote: Ensure the wireless remote is functioning for volume and mute control.

CAUTION! Always power on sources (mixers, instruments) before the L1 system, and power down in reverse order to prevent pops and damage.

Technical Specifications

• System Type: Portable Line Array with Integrated Amplification.
• Coverage: Wide horizontal dispersion (approx. 180 degrees).
• Frequency Response: Varies by model (e.g., 55Hz - 16kHz ±3dB).
• Input Channels: Multiple combo XLR/TRS jacks with volume, bass, treble, and ToneMatch.
• Output Power: Integrated amplifier(s) specific to array and bass module.
• Power Requirements: 100-240V AC, 50/60Hz.
• Dimensions & Weight: Tower breaks down for transport; consult specific model guide.
• Included Accessories: Remote control, power cables, connection cables, user manual.

Controls and Connections

Primary controls are located on the base of the tower or a connected mixer section.

Front/Rear Panel: POWER switch, INPUT CHANNEL controls (Volume, Bass, Treble, ToneMatch selector), MASTER VOLUME, AUX INPUT, BASS MODULE output.

Remote: POWER, MASTER VOLUME UP/DOWN, MUTE.

Channel Controls: Each input channel typically has: VOLUME, BASS, TREBLE, and a ToneMatch selector knob to choose presets for different microphones (e.g., dynamic, condenser) or instrument types.

Master Section: MASTER VOLUME control affects the overall output level of the system.

Connecting Audio Sources

Use the combo XLR/TRS input jacks on the base of the tower.

1. Microphones: Connect directly to an input channel using an XLR cable.
2. Instruments: Electric guitars or keyboards can connect via a 1/4" TS/TRS cable.
3. Line-Level Devices: Such as mixers or music players, use a 1/4" TRS or RCA-to-1/4" cable into an input or the dedicated AUX input.
4. Power on Sequence: Always turn on connected sources first, then the L1 II system.

Tip: For the best noise performance, use balanced cables (XLR or TRS) whenever possible.

Operating the System

Basic operation for live sound or playback.

1. Power On: Turn on connected audio sources first, then press the POWER switch on the L1 II.
2. Set Channel Levels: Adjust each input channel's volume while the source is active. Use the ToneMatch selector and tone controls to shape the sound.
3. Control Master Volume: Use the MASTER VOLUME knob or the remote to set the final output level.
4. Using the Remote: The wireless remote can adjust master volume and mute the system from a distance.
5. Muting: Press MUTE on the remote to instantly silence the system. Press again or adjust volume to unmute.

WARNING! Avoid pointing microphones directly at the speaker array to prevent feedback. Be cautious of high volume levels to protect your hearing.

ToneMatch and EQ Settings

The ToneMatch system provides pre-configured EQ settings to optimize sound for specific Bose microphones and common instrument types.

Using ToneMatch: Rotate the ToneMatch knob on a channel to select a preset icon (e.g., a specific microphone model, acoustic guitar, keyboard). This applies an optimal EQ curve.

Manual Tone Controls: Use the BASS and TREBLE knobs on each channel for further fine-tuning if needed, even with a ToneMatch preset engaged.

For Non-Bose Mics: Start with a generic "Vocal" or similar preset and use the manual tone controls to adjust.

Care & Maintenance

Unplug the system from AC power before cleaning. Wipe the exterior with a soft, dry cloth. Do not use liquid or aerosol cleaners.

Store the system in a cool, dry place. When transporting, use the provided bags or cases to protect the components.

CAUTION! Do not expose the system to rain or moisture. Do not block the ventilation openings on the tower base or bass module.

Regulatory Information

FCC Compliance: This device complies with Part 15 of the FCC Rules. Operation is subject to interference that may cause undesired operation. Copyright © Bose Corporation. All rights reserved. Bose, L1, and ToneMatch are trademarks of Bose Corporation. For the latest information and support, visit www.bose.com or contact Bose Customer Service.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power / System dead	Power cable, outlet, switch	Ensure power cable is securely connected at both ends. Try a different outlet. Check that the POWER switch is ON.
No sound from a channel	Source, cable, channel volume	Check if the source is on and outputting signal. Try a different cable. Ensure the channel volume knob is turned up.
Feedback or howling	Microphone placement, gain	Move microphone away from and not pointing directly at the speaker array. Reduce the channel volume.
Distorted sound	Overloaded input, faulty cable	Reduce the volume on the source device and/or the channel input. Check cables for damage.
Remote not working	Batteries, range, obstacles	Replace remote batteries. Ensure you are within range (approx. 50 ft) and have a clear line of sight to the system's IR receiver.
Intermittent sound	Loose cable connection	Check and firmly reseat all audio and power cable connections.

Reset: If the system behaves unexpectedly, power it completely off, wait 30 seconds, and power it back on.

Service: For technical support, visit www.bose.com/support or contact Bose Customer Service.