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A professional amplifier will usually have a lower noise floor and higher signal-to-noise ratio. They will also have better stability and a lighter weight than consumer amplifiers.
The basic operation of a digital power amplifier is based on the conversion of an analog signal to a digital one. It then re-creates the audio signal using a duty cycle. By doing this, it avoids the transient intermodulation distortion that is inherent in analog power amplifiers.
In a Digital Audio Power Amplifier, a dc voltage is applied across a speaker in either a positive or negative direction. This is then converted to a pulse-width modulation (PWM) waveform. The resulting PWM pulse has a duty ratio that is proportional to the amplitude of the input signal. Usually, the duty ratio is near 100% for a large positive input and near zero for a large negative input.
A professional amplifier will usually have a lower noise floor and higher signal-to-noise ratio. They will also have better stability and a lighter weight than consumer amplifiers.
The basic operation of a digital power amplifier is based on the conversion of an analog signal to a digital one. It then re-creates the audio signal using a duty cycle. By doing this, it avoids the transient intermodulation distortion that is inherent in analog power amplifiers.
In a Digital Audio Power Amplifier, a dc voltage is applied across a speaker in either a positive or negative direction. This is then converted to a pulse-width modulation (PWM) waveform. The resulting PWM pulse has a duty ratio that is proportional to the amplitude of the input signal. Usually, the duty ratio is near 100% for a large positive input and near zero for a large negative input.
