There are two factors that lie behind 1-bit’s ability to create high-quality sound. The first is its ultra-high speed sampling, which allows 1-bit to faithfully convert analogue signals to digital with great time resolution. The other is 1-bit’s ability to eliminate signal deterioration. Calculating only the fluctuations between the quantised samples results in a simple signal conversion. As well, by transmitting and amplifying 1-bit digital signals instead of analogue signals, the 1-bit amplifier greatly reduces the amount of signal deterioration. modulation technology converts analogue sound information by modulating analogue signals onto high frequency 1-bit digital signals. In other words, it generates digital signals while maintaining the characteristics of the original analogue waveform. This method minimises the loss and distortion of sound information that normally occur in the recording and transmitting processes. It also eliminates the need of a D/A converter by generating analogue signals with only a low-pass filter to drive the speakers. Analogue signals are capable of reproducing quality sound with great reverberation and depth but their physical characteristics result in signal deterioration during the recording and transmitting processes. PCM multi-bit signals have less noise and distortion, but undergo decimation and complementing of information during A/D and D/A conversion. Like PCM multi-bit signals, 1-bit signals are also digital. However, they are not subject to decimation or complementing, and are free from deterioration in the recording and transmitting processes. There are three main advantages. First, 1-bit technology allows for amplification faithful to the source with no exposure to external noise or physical interference. Second, 1-bit amplifiers have a small footprint, and are compact. Third, they are superior to conventional amplifiers in terms of energy efficiency. Theoretically, 1-bit amplifiers achieve a frequency response of 0Hz to 100kHz and a dynamic range of 120dB. This means that 1-bit amplifiers have the ability to reproduce the 100kHz sound produced by high-hat cymbals and the 100dB dynamic range of orchestras.