A:AnswerHi stephenHG, The DU6900 offers three HDMI ports but does not have an optical input. You can however connect the HW-C445 Soundbar via Bluetooth. If you would like a wired connection, you can upgrade your soundbar to the HW-B550D, which can connect using HDMI ARC. Check it out at Best Buy:
https://www.bestbuy.com/site/samsung-hw-b550d-3-1-channel-b-series-soundbar-with-wireless-subwoofer-black/6577561.p?skuId=6577561
~ Samsung Solutions
A:AnswerHi Clay! The included subwoofer of the HW-C445 Soundbar is wireless and does not connect to the soundbar but will still need to be plugged into a power source. ~Samsung Solutions
A:AnswerHi julis. The HW-C445 Soundbar can connect using Bluetooth or Optical Cable, so it can't be connected directly to the monitor, however, you can connect to a compatible, PC, Mac, gaming console, or TV. ~ Samsung Solutions
A:AnswerHi there TBone! Yes, the HW-C445 Soundbar does included 1 optical cable. It also has the option to connect using BT as well. ~ Samsung Solutions