Smart effect unit

Disclosed is a smart effects unit. The smart effects unit includes: a plurality of effects modules, a control module and a switching device. The control module includes a processing unit, a user interface and a memory. The processing unit is connected to an instrument and a plurality of effect modules through an input switch interface, such that the audio signal of the instrument is able to be inputted into the effects modules based on a combination mode to generate a combined effect audio signal. The combination mode defines the connection sequence of the plurality of effect modules. The user interface is provided for user to adjust each of the plurality of effect modules and to adjust the connection sequence order of the plurality of effect modules through the input interface to generate the combination mode, which is stored in a memory. The switching device connected to the control module is provided for the user to switch the control module between different combination modes based on the combination mode