Adjust the Volume on Your Paired DeviceMiccus adapters are passive Bluetooth transmitters or receivers, audio simply passes through.  Control your volume on the paired audio device such as your TV, phone or headphones.If using RCA connection, change to Optical or 3.5mm.
RCA jacks on TVs often have a very low preset volume that
cannot be adjusted, causing in a lower volume range.
Try changing the connection to either digital Optical Audio Out port or 3.5mm AUX/
Headphone Jack.The volume range should improve after changing to either
one.