Question about Samsung HW-S60D/EN

Yes, the soundbar is connected via HDMI ARC. It has an HDMI eARC connection, which is used for the connection to the TV to transmit audio in high quality and with low latency. An HDMI cable (at least version 1.4) is used for this and it is important that the HDMI CEC function (with Samsung Anynet+) is activated on the TV to enable control via HDMI ARC.