An all-digital speaker system device, comprising: an A/D converter for converting an input analog audio signal into a multi-bit digital signal in PCM coded format; an interpolation filter for up-sampling the multi-bit digital signal in PCM coded format to an over-sampling PCM coded signal, which interpolation filter is electrically coupled to an output end of the A/D converter; a Σ-Δ modulator for shaping noise and modulating the over-sampling PCM coded signal into an N bit Σ-Δ coded modulated signal, which Σ-Δ modulator is electrically coupled to an output end of the interpolation filter and for converting the N bit Σ-Δ coded modulated signal into 2 N equal weight binary coded signals corresponding to 2 N transmission channels; a dynamic mismatch regulator for shaping nonlinear harmonic distortion arisen from frequency response differences between array elements of a speaker array, by performing mismatch shaping on the 2 N equal weight binary coded signals based on Data-Weighted Averaging, Vector-Feedback mismatch-shaping or Tree-Structure mismatch shaping, thereby generating 2 N single channel digital signals, which dynamic mismatch regulator is electrically coupled to an output end of the Σ-Δ modulator; a differential buffer for producing 2 N twin channel differential signals from the 2 N single channel digital signals, which differential buffer is electrically coupled to an output end of the dynamic mismatch regulator; and the speaker array comprising, as said array elements, 2 N speakers of moving-coil type or piezo-electric type arranged in a certain array location configuration, for realizing electro-acoustic conversion of the 2 N twin channel differential signals, which speaker array is electrically coupled to the output end of the differential buffer. an A/D converter for converting an input analog audio signal into a multi-bit digital signal in PCM coded format; an interpolation filter for up-sampling the multi-bit digital signal in PCM coded format to an over-sampling PCM coded signal, which interpolation filter is electrically coupled to an output end of the A/D converter; a Σ-Δ modulator for shaping noise and modulating the over-sampling PCM coded signal into an N bit Σ-Δ coded modulated signal, which Σ-Δ modulator is electrically coupled to an output end of the interpolation filter and for converting the N bit Σ-Δ coded modulated signal into 2 N equal weight binary coded signals corresponding to 2 N transmission channels; a dynamic mismatch regulator for shaping nonlinear harmonic distortion arisen from frequency response differences between array elements of a speaker array, by performing mismatch shaping on the 2 N equal weight binary coded signals based on Data-Weighted Averaging, Vector-Feedback mismatch-shaping or Tree-Structure mismatch shaping, thereby generating 2 N single channel digital signals, which dynamic mismatch regulator is electrically coupled to an output end of the Σ-Δ modulator; a differential buffer for producing 2 N twin channel differential signals from the 2 N single channel digital signals, which differential buffer is electrically coupled to an output end of the dynamic mismatch regulator; and the speaker array comprising, as said array elements, 2 N speakers of moving-coil type or piezo-electric type arranged in a certain array location configuration, for realizing electro-acoustic conversion of the 2 N twin channel differential signals, which speaker array is electrically coupled to the output end of the differential buffer.