100% volume when pressing +/- button on the phone

Roon Server Machine

Roon is running on a smallb htpc running roon only with windows 10. Run 24/7.

Networking Gear & Setup Details

1 Gbit/s wired connection

Connected Audio Devices

Kef lsx through wifi
Dynaudio focus 10 through wifi
Phone through roon arc

Number of Tracks in Library

Less than 8000 + streaming

Description of Issue

I never ever use any device at 100%.

I started roon on my Android phone, transferred a zone from the dynaudio to the kef lsx, no speaker was playing music or even on.

Started the music on the kef. Volume is normal (around 44 I think to remember), pushed the - button on the phone to make the sound less loud. The music instantly went to 100. Could have destroyed my ears if I was very closed…

Here is the configuration of the kef in roon




Hi @BR_BJ,

Thank you for the report. The team is aware of the ongoing issue and tracking it in this thread.

We will post there as the fix progresses through the development pipeline. Thank you!