Engine off or on, the subwoofer slider doesn't have any effect on mine. I'm beginning to wonder if it's even on/working!
 
That is very easy to check: play something that is bass heavy, walk to the back, pop the trunk and hear around/touch subwoofer.
If it is working, you cannot miss it.
Already done that and yes I thought it would be obvious, but it's not. My experience of it is much the same as @Lmbarrett83 . Think I'll need to get someone to have a look at it. Cheers.
 
Cheers for checking. And yours is Beats Audio yeah?
Yeah new 290 with beats audio here is some recommended settings I found......
Screenshot_20181219-001320.jpg
 
does anybody know how to adapt value ENG117919-Startup_Screen_Sticker_HMI in order to show sticker SEAT SOUND at bootup logo? in old version of infotainment software I have 05 00 which showed Seat sound logo, but in latest SW 1447 id doesnt work (no sticker). But 02 00 shows BeatsAudio at right bottom corner, but I want SSS..does anybody know ?
 
Anyone how to fix not working subwoofer slider in option? People here also wrote that subwoofer slider have zero effect. I also dont have option for Sound focus. What can be issue? I have beats audio system. Thanks for any info