Bose T4S ToneMatch 4-Channel Mixer for F1 and L1 PA Systems

The Bose T4S ToneMatch is a compact four-channel digital stereo mixer designed for live performers. Its DSP engine provides channel-independent EQ, dynamics and effects, while Bose ToneMatch processing and zEQ support detailed tonal control for vocals and instruments.

Illuminated tactile controls, an LED display and an intuitive interface make adjustments accessible on dimly lit stages. Performance tools include tap-tempo delay, a chromatic tuner and recallable scenes.

Four XLR and ¼-inch combo inputs feature high-quality audio preamps and switchable phantom power. Additional connections include two Aux sends, two Aux inputs, balanced stereo outputs, two ToneMatch digital outputs, USB-A and USB-B ports, a dedicated headphone output and ¼-inch TRS analogue outputs.

When connected to compatible Bose L1 or F1 systems, the mixer supports end-to-end tonal optimisation. A protective magnetic cover and ToneMatch cable are included, while the bottom insert accepts standard mounting accessories.

• Four-channel compact digital stereo mixer
• Studio-quality effects and advanced digital audio processing
• Compressor, limiter, de-esser, noise gate, chorus, flanger, phaser, tremolo, delay and reverb effects
• Bose ToneMatch processing for natural-sounding vocals and instruments
• zEQ focuses adjustments on the sound of ToneMatch presets
• Independent ToneMatch processing, EQ, dynamics and effects for each channel
• Dedicated reverb on the Aux 1 send and shared global reverb across all channels
• Master output EQ for compensating for venue acoustics
• End-to-end tonal optimisation with Bose L1 and F1 systems
• Illuminated tactile controls, indicators and an easy-to-read LED display
• Built-in tap-tempo delay, chromatic tuner and recallable scenes
• Four audio preamps with XLR and ¼-inch combo inputs plus switchable phantom power
• Two ToneMatch outputs for digital audio and power
• Two Aux sends and two Aux inputs
• USB-A and USB-B connectivity for USB drive playback or PC and Mac interfacing
• Independent headphone output and balanced ¼-inch TRS stereo outputs
• Rugged enclosure with a protective magnetic cover
• Includes a ToneMatch cable for digital audio and power connection to a Bose L1 Model II or L1 Model 1S system
• Bottom insert accommodates standard mounting accessories

Dimensions

8.3 cm H × 18.4 cm W × 21.4 cm D

Weight

1 kg

Main inputs

4 × XLR and ¼-inch combo inputs

Aux inputs

2

USB input

USB port

Balanced outputs

2 × ¼-inch TRS

Aux sends

2

ToneMatch outputs

2 × digital audio outputs

USB output

USB port

Headphone output

Dedicated headphone connection