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NTP-3000A is a single chip full digital audio amplifier including power stage for stereo or 2.1channel amplifier system. NTP-3000A is integrated with versatile digital audio signal processing functions, high-fidelity fully digital PWM modulator and two high power full bridge MOSFET stages. It receives 2channel serial audio data with sampling frequency from 8kHz to 192kHz. It delivers 2 x 30W in stereo mode or 2 x 15W + 1 x 30W in 2.1channel mode as well as a separate headphone output without heat sink. Combining use of built-in mixer and biquad filters can make additional preprocessing like bass management, loudness control, loudspeaker response compensation and preset parametric equalizer possible. All the functions of NTP-3000A are set by I?C register configuration.