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Bose T4S ToneMatch Digital Mixer

Ultra-compact 4-channel mixer designed for performers



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SKU: 785403-0110

Product Description

Here's what Bose says about the T4S ToneMatch Digital Mixer:

Take control of your music with the T4S ToneMatch mixer, an ultra-compact 4-channel interface designed for performers. Engineered with a powerful DSP engine and intuitive user control, the T4S offers studio-quality EQ, dynamics and effects.

Sound great with integrated Bose ToneMatch processing and zEQ, especially when connected to a Bose L1® or F1 system for full end-to-end tonal control. Play confidently on stage with the rugged T4S using its tactile controls, easy-to-read LED display and scene recall. The T4S, a true performer’s companion.

Key Features

  • Updated, studio-quality effects with advanced digital audio processing
  • High-quality effects include compressor, limiter, de-esser, noise gate, chorus, flanger, phaser, tremolo, delay and reverb
  • Bose® ToneMatch® processing for natural-sounding vocals and instruments
  • zEQ focuses the sound of ToneMatch presets for effective adjustments on the fly
  • Independent ToneMatch, EQ, dynamics and effects per channel
  • Dedicated reverb on Aux 1 send, and a global shared reverb for use across all channels
  • Master output EQ helps compensate for venue acoustics
  • Full end-to-end tonal optimization when used with Bose L1® and F1 systems
  • Tactile controls and indicators designed for live, on-stage use
  • Fast-learning user interface
  • Built-in tap tempo delay, chromatic tuner, and recallable scenes
  • LED display and illuminated controls are easy to read and use, even on dimly-lit stages
  • Unprecedented connectivity and control in a small digital stereo mixer
  • Four high-quality audio preamps with XLR/TRS connectors for microphones or instruments, and switchable phantom power
  • Two ToneMatch outputs for digital audio and power
  • Two Aux sends, and Two Aux inputs for additional sources
  • USB-A and USB-B for media playback and PC/Mac interfacing
  • Independent headphone and balanced 1/4'' TRS stereo outputs
  • Rugged enclosure with a protective magnetic cover to protect controls and connectors
  • Bottom insert allows you to use standard mounting accessories to keep your T4S within reach
  • Includes a ToneMatch cable for connecting to a Bose L1 Model II or L1 Model 1S system for digital audio and power

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Powerful Audio Processing

Elevate your performances with updated, studio-quality effects and advanced digital audio processing. Never run out of options with channel-independent EQ, dynamics and effects. Get your perfect sound fast with Bose ToneMatch processing for natural-sounding vocals and instruments, while zEQ focuses your tone for effective adjustments on the fly. When used with Bose L1® and F1 systems, the T4S mixer allows full end-to-end optimization of your sound. 

Seamless Live Control

The T4S integrates with your performance using illuminated, tactile controls and indicators for spontaneous sound adjustments, even on dimly-lit stages. Jump into settings with the fast-learning, intuitive control interface. Additional features like tap tempo delay, built-in chromatic tuner, and recallable scenes makes it easy to be ready to play. The T4S is the ultimate on-stage companion for performing artists. 

High-Density Connectivity

For it’s size, the stereo T4S mixer gives you unprecedented connectivity with control.  Four main channels feature high-quality audio preamps with XLR-combo jacks for microphones or instruments, and switchable phantom power. Additionally, the T4S offers two Aux sends, two Aux inputs, stereo balanced outputs, two ToneMatch outputs for digital audio (with remote power), USB-A and -B for USB drive playback or PC/Mac interfacing, a dedicated headphone jack, and balanced ¼” TRS analog outputs.

Convenient Gig-Ready Features

Rugged and ready to go, the T4S includes a protective magnetic cover and a ToneMatch cable for connecting directly to a Bose L1 Model II or L1 Model 1S system, providing a convenient one-wire connection for digital audio and power. A bottom insert allows you to use standard mounting accessories to keep the T4S within reach.

Included in the Box

  • 1 x T4S ToneMatch Mixer
  • 1 x ToneMatch Cable
  • 1 x Protective Cover

Technical Specifications

  • A/D and D/A Conversion: 24-Bit
  • Sampling Rate: 48kHz

Input Connectors:

  • 4 x XLR/TRS Combo
  • 2 x Aux
  • 1 x USB 2.0

Output Connectors:

  • 2 x 1/4'' TRS, Balanced
  • 2 x Aux Sends
  • 1 x USB 2.0
  • 1 x Headphone

ToneMatch Presets:

  • Comp/Gate
  • Chorus & Phaser
  • Delay Reverb


  • Display: LED
  • Dimensions: 214mm x 311mm x 83mm / 8.4'' x 12.25'' x 3.25'' (L x W x H)
  • Weight: 1.9kg

Customer Reviews


6 reviews





Harrison Marsh11th Sep 2023

Value 5Looks 5Durability 5Sound 5

Mr Rhys Watkins8th Jan 2021

Value 5Looks 5Durability 4Sound 4

Mr John Corrigan13th Jul 2020

Value 4Looks 4Durability 4Sound 5

Mr PHILIP HARRIS21st Mar 2020

Good but I don't think it is as versatile as the T1, and the reverb is not quite right.

Value 4Looks 5Durability 5Sound 4

Trusted Customer28th Jan 2019

Good product. Unfortunately one down side is there isn't a button or knob for sound level for aux cable if using iPad or phone for music. Must use device volume or fiddle about on the computer screen set up to adjust volume. Everything else brilliant.

Mr Robert Nicholson24th Nov 2018

There is not a controllable level input for stereo aux in.

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Andertons Music Company's Registered Office: 58-59 Woodbridge Road, Guildford, GU1 4RF. Andertons Music Company acts as a credit broker and not a lender and only offers credit products from Secure Trust Bank PLC trading as V12 Retail Finance. Not all products offered by Secure Trust Bank PLC are regulated by the Financial Conduct Authority. Andertons Music Company is authorised and regulated by the Financial Conduct Authority, firm registration number 716155. Credit provided subject to age and status.