Bose 785403-0110

Bose T4S ToneMatch Mixer: User Manual

Model: 785403-0110

1. Introduction and Overview

The Bose T4S ToneMatch Mixer is an ultra-compact, 4-channel digital mixer designed for performers seeking precise control over their audio. Featuring a powerful DSP engine and intuitive user controls, the T4S delivers studio-quality EQ, dynamics, and effects. It integrates seamlessly with Bose L1 or F1 systems for comprehensive end-to-end tonal control, making it an ideal companion for live performances.

Bose T4S ToneMatch Mixer front view

Figure 1: Front view of the Bose T4S ToneMatch Mixer, showcasing its controls and display.

2. What's in the Box

Upon unboxing your Bose T4S ToneMatch Mixer, please ensure all the following items are present:

  • T4S ToneMatch mixer
  • ToneMatch cable
  • Cover
Bose ToneMatch cable

Figure 2: The ToneMatch cable included with your mixer, essential for connecting to compatible Bose L1 or F1 systems.

3. Key Features

  • Updated, studio-quality effects with advanced digital audio processing and Bose ToneMatch processing for natural-sounding vocals and instruments.
  • 4 high-quality audio Preamps with XLR-combo jacks for microphones or instruments, and switchable phantom power.
  • ZEQ focuses the sound of ToneMatch presets for effective adjustments on the fly.
  • Includes a ToneMatch cable for connecting to compatible Bose L1 Model II or L1 Model 1S system for digital audio and power.

4. Setup

Follow these steps to set up your Bose T4S ToneMatch Mixer:

  1. Power Connection: Connect the ToneMatch mixer to a compatible Bose L1 Model II or L1 Model 1S system using the provided ToneMatch cable for both digital audio and power. Alternatively, use an optional external power supply (sold separately) if not connecting to a compatible Bose system.
  2. Input Connections: Utilize the 4 high-quality audio preamps with XLR-combo jacks to connect microphones or instruments. These versatile jacks accept both XLR and 1/4-inch TRS/TS connections.
  3. Phantom Power: For condenser microphones requiring power, activate the switchable phantom power on the relevant channels. Refer to the mixer's display for channel-specific phantom power controls.
  4. Output Connections: Connect the main outputs to your sound system or recording device. The mixer offers various output options for flexibility.
  5. USB Audio: Connect the mixer to a computer via USB for audio recording or playback.
Bose T4S ToneMatch Mixer back panel with various input and output ports

Figure 3: Rear view of the T4S ToneMatch Mixer, highlighting the XLR-combo inputs, USB ports, and main outputs for diverse connectivity.

5. Operating Instructions

The T4S ToneMatch Mixer offers intuitive controls for shaping your sound:

  • Channel Controls: Each of the 4 channels features dedicated trim, volume, and FX mute controls. Use the 'CH EDIT' buttons to access detailed settings for each channel.
  • ToneMatch Processing: Utilize the ToneMatch rotary selector to navigate through various categories and presets optimized for specific microphones and instruments. This feature automatically applies recommended EQ and effects settings.
  • DSP Engine: The powerful DSP engine allows for fine-tuning of EQ, dynamics (compressor/gate), modulation, delay, and reverb effects. Use the central rotary encoder and surrounding buttons to adjust parameters displayed on the LED screen.
  • ZEQ: The ZEQ feature allows for on-the-fly adjustments to ToneMatch presets, enabling quick and effective sound shaping during a performance.
  • Scene Recall: Save your preferred mixer configurations as 'Scenes' for quick recall during different performances or setups.
  • Master Volume: Adjust the overall output level using the 'MASTER' knob.

Video 1: A closer look at the Bose T4S ToneMatch Mixer, demonstrating its compact design and key controls.

6. Maintenance

To ensure the longevity and optimal performance of your Bose T4S ToneMatch Mixer, follow these maintenance guidelines:

  • Cleaning: Use a soft, dry cloth to clean the exterior of the mixer. Avoid using abrasive cleaners, solvents, or strong chemicals, as these can damage the finish and internal components.
  • Storage: When not in use, store the mixer in a cool, dry place away from direct sunlight, extreme temperatures, and excessive humidity. Use the provided cover to protect it from dust and debris.
  • Cable Care: Regularly inspect all cables for any signs of wear or damage. Replace damaged cables immediately to prevent performance issues or potential hazards.
  • Ventilation: Ensure that the mixer's ventilation openings are not obstructed during operation to prevent overheating.

7. Troubleshooting

If you encounter any issues with your Bose T4S ToneMatch Mixer, consider the following common troubleshooting steps:

  • No Power: Ensure the ToneMatch cable is securely connected to a compatible Bose L1/F1 system or that the optional external power supply is correctly plugged in and functioning.
  • No Sound: Verify all input and output cables are correctly connected. Check channel volume levels, master volume, and ensure no channels are muted. Confirm that phantom power is enabled for condenser microphones.
  • Distorted Sound: Reduce input gain levels if the 'PEAK' indicators are frequently lighting up. Check for damaged cables or improper connections.
  • Effects Not Working: Ensure the desired effects are enabled and their parameters are correctly set. Check the FX send/return levels.
  • Intermittent Issues: Power cycle the mixer and any connected audio equipment. Ensure the mixer is operating within recommended environmental conditions.

For persistent issues, please refer to the official Bose support resources or contact customer service.

8. Specifications

FeatureSpecification
Item Weight2.1 pounds
Product Dimensions8.4 x 7.25 x 3.25 inches
Item Model Number785403-0110
ColorBlack
Power SourceCorded Electric
Number of Channels4
Connectivity TechnologyUSB
First AvailableMarch 26, 2018
Bose T4S ToneMatch Mixer held in hand, showing its compact size and dimensions.

Figure 4: The compact size of the T4S ToneMatch Mixer, illustrating its portability and dimensions.

9. Warranty and Support

For warranty information, product registration, and technical support, please visit the official Bose website or contact their customer service. Keep your purchase receipt as proof of purchase for warranty claims.

Online resources and FAQs are available to assist with common queries and advanced usage tips.

© 2026 Bose Corporation. All rights reserved.

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