My Bluetooth range is poor, I get crackles or hiss or interference.

[Simon D]

Try these steps on the Orbitsound support pages for Bluetooth issues and problems.
[url=https://www.orbitsound.com/en/support/articles/i-am-having-bluetooth-issues-with-my-a-series-soundbar/][/url]
If that does not help try posting as much info here as you can.