SoundEngine Distortion Cancellation Technology ^TM

By using dynamic local error canceling for different gain stages in the amplifier
a very low distortion and a large dynamic range can be achieved. The dynamic range, linearity and musicality can be significantly improved compared to existing audio technologies. The figure below shows the basic architecture of the SoundEngine amplifier technology.

By cascading several amplifier stages each using local error correction the drawbacks of the traditional amplifier technologies can be avoided. The local error correction is dynamically adjusted to cancel non-linearities and distortion in case the applied input signal will cause sufficient non-linearity for one or more of the cascaded gain stages. Hence no error correction is done when the amplifying stages do not contribute to non-linearity. The error correction is only applied when necessary. When no error correction is performed, the gain stages are working as cascaded local feedback gain stages with the specified voltage and current gain.

The SoundEngine Distortion Cancellation Technology^TM includes the strengths of both global feedback- and local feedback topologies, without introducing the drawbacks of these two topologies.

Because of the distributed local error correction topology, the signal delay through respective amplifying stages is kept low, and hence the error correction speed and error canceling is much higher than in a global feedback amplifier. This gives increased linearity end error correction capabilities for high frequency signals compared to the global feedback approach.