Allow me to start mentioning that I am aware of similar threads in the community (this forum and reddit) but none of the proposed solutions worked for me. :(
I have been using ARC for over a year without any issue. I recently added a Sub (gen3) and the result is somewhat disappointing: The sub is too quiet. Less than volume 10 I cannot tell the difference it makes, and even at +15 it is not impressive.
LG OLED CX
Arc connected via HDMI 2 (earc enabled, bitstream, passthrough)
I have multiple HDMI connected via Philips sync box (for the lights) - Apple TV 4k (2022) and a PS5.
I have tried removing the sync box completely and plugging the ATV / PS5 directly to the TV with the same results.
All the cables are certified hdmi 2.1
The Sonos App tells me I am properly getting Atmos (ATV) or Dolby 5.1 (PS5). The sound is great, it is just the bass being underwhelming
I have tried placing the sub in different locations, true play on and off dozens of times, player with EQ bass and sub volume but nothing seems to change much. It is always the similar underwhelming results.
It is worth to mention that the “success” sound when adding the SUB together with the arc it is amazing! Very loud and the wall does tremble with that one - that’s the experience I am looking for but unable to replicate even at +15 in any of my devices.
If I tune the arc volume very high (50+ at 100%) I do feel the sub a little bit more, but sadly the arc is way to loud to be comfortable.
Best answer by Corry PView original