Bose® T1 ToneMatch® audio engine
T1 ToneMatch audio engine offers powerful multichannel sound tools for Bose L1 systems. This four-channel engine features more than 100 proprietary ToneMatch presets for instruments and microphones, along with Bose zEQ, storable scenes and a large suite of professional-quality effects and processors. Presets and firmware updates are available free, with easy download via the engine's USB port.