The Filterless Non-Oversampling technology of the DAC BOX S FL is based on the original format of the Audio CD, with 16bit and 44.1 kHz, achieving a maximum audio frequency transfer of 20kHz.

The DAC BOX S FL uses 4 TDA 1543T DA-Chips in parallel Double Differential Mode, ensuring high accuracy and very low distortion in the audio range below 20kHz.

The distortion spectrum is extremely low below 20kHz, similar to that of tube amplifiers. Distortion levels increase significantly above 20kHz, without affecting the playback of Audio CDs, as it is above the audible frequency.

The SMD output is directly connected to the DA converters for the best results. The sound quality is exceptionally good, even though the TDA-1543 performs better at higher temperatures. Good heatsinks are required to manage heat for safe operation.

This specific arrangement has a particular advantage: No additional filter is required!