Krone LSA-PLUS

Multipair audio cables have been specifically designed for the system by organisations such as the BBC.

Krone (German word for crown) was developed in Berlin in the 1970s by The Krone Group, a German telecommunications company.

As of 2015 ADC/Krone Telecom Solutions is a division of CommScope Inc. LSA-PLUS is a German abbreviation: Krone can be easily distinguished from 110 by its contact slots being arranged at a 45-degree angle to the wire.

Krone contacts can be used with stranded conductors, unlike 66- and 110-style IDC punch blocks.

The contacts use silver to inhibit corrosion and require a Krone-specific punch down tool for wire insertion.