At the event in Ljubljana Manuel Huber of FM Acoustics revealed the all new TS-1 (True Sub). It was designed from the ground up an an extension for XS-1 series speakers, extending the range by an octave. On many recordings this is not needed, but with some of the music where the foundation of the music is based on the lower octaves it is crucial to offer realistic extension. 

The TS-1 is unique in one major respect that is not interfering at all within the the rest of the frequency spectrum, avoiding all fo the gimmicks, colorations and negative impact on the music signal. 

With TS-1 its all about the recreation of the natural atmosphere of the original recording event.