Doble Filtering Signal System
The purpose of the DFSS filter is to help eliminate distortions coming from the external electromagnetic field on the transmitted audio signal. The filter is available for the Premium cable
Another notable feature was the lack of ‘stickiness’ amongst the instruments. That is, subtle sounding instruments that may have previously hidden behind or were almost too close to another instrument to enable you to hear its detail in full were now operating and standing on their own two feet, contributing to a fuller soundstage.