Is Power Link a digital bus for transferring audio?

Regular Power Link transfers the signal as an analogue signal from the source to the speaker. It transfers two channels in one cable which enables it to be daisy chained. Each channel is individually shielded to provide protection from external noise sources and crosstalk between the channels. The maximum cable length in a Power Link system is 300 meters and no more than 100 meters between each product. The new Digital Power Link (DPL) is used in between BeoLab 90 Master and Slave unit and the cable can maximum be 100 meters long.
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