You can connect the soundbar to a receiver by an optical cable. Connect one end to the digital optical out port on the receiver, and to the optical in port on the soundbar. The receiver will, of course, need a digital optical out port.
Can you connect soundbar without HDMI ARC?
If you want to connect a soundbar to the TV without HDMI or optical, you have two options: go high-tech with a wireless connection or mid-tech with 3.5 mm aux or RCA cables. You can also use an auxiliary device to convert coaxial cables to another type of connection.
How do I connect my soundbar to my amp?
1:305:17How to Connect a Soundbar to a Receiver (Should You Do It?)YouTube
How do I connect my soundbar to my ARC TV?
Follow the steps below to connect your ARC TV to the soundbar: Connect one end of an HDMI cable to the HDMI OUT port on the back of the soundbar. Connect the other end of the HDMI cable to the ARC HDMI IN port on your TV. Power on any external device connected to your TV, and then power on your TV and soundbar.Oct 7, 2020