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When you connect your Insignia F50 TV to the Insignia 2.1-Channel Soundbar with Wireless Subwoofer using an optical cable, you typically won't be able to control the soundbar's volume with the TV remote. Optical connections don't support volume control through the TV remote, as they transmit a fixed audio signal. To control the soundbar's volume, you would need to use the soundbar's remote. Alternatively, if your TV and soundbar both support HDMI ARC (Audio Return Channel), you could use an HDMI cable to connect them. This setup would allow you to control the soundbar's volume with your TV remote. Patricia | Insignia Support
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