Volume control on cable box

[Alinnh]

How do I turn down x1 cable box output. Presently volume control is dedicated to tv. I have a Bluetooth headset attached to the rca otput on the box but it’s too loud. My headset has no volume control

[CCAndrew]

The cable box has no volume control either, you could possibly hook it up to rca on your tv?

[Alinnh]

Thanks
I’ll try that

[Alinnh]

Tried it no output from TV. Maybe because hdmi is active from cable box to tv for sound