Have you tried playing with this setting, and then use your tv remote instead of the Buzz remote.
--------------------------------------------------
On your BuzzTV PowerStation 6, the option “Force Max Volume” in the PVR/Playback settings is a system safeguard that ensures the audio output is always sent at 100% volume level from the BuzzTV box itself. Here’s what that means:
What “Force Max Volume” Does
Locks Device Volume at 100%
The BuzzTV box will always output audio at maximum volume.
You won’t be able to lower the volume using the BuzzTV remote while this option is enabled.
Pass‑Through Audio Control
The idea is that the TV or external sound system (soundbar, receiver, etc.) should control the actual listening volume.
BuzzTV just sends a full‑strength audio signal to avoid distortion or mismatched levels.
Prevents Low‑Volume Issues
Some IPTV streams can sound too quiet if the box volume is reduced.
Forcing max volume ensures consistent audio quality across all channels.
When to Use It
If you’re using a soundbar or AV receiver and want the BuzzTV box to always send a clean, full‑volume signal.
If you’ve noticed channels sounding too low even when your TV volume is high.
If you want to avoid accidentally lowering BuzzTV’s internal volume and confusing it with your TV’s volume.
Things to Keep in Mind
You’ll need to adjust volume only on your TV or sound system once this is enabled.
If you prefer controlling volume with the BuzzTV remote, leave this option disabled.
It doesn’t boost sound beyond normal — it just locks the box’s output at 100%.
Bottom line: “Force Max Volume” makes the BuzzTV box always output audio at full strength, leaving volume control to your TV or external speakers. It’s mainly for users who want consistent sound quality and avoid double‑volume control issues.