T4S ToneMatch mixer is 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.