I recently sold my second Helix Floor to try a Kemper floor ..it was good but not suitable for my use ...I purchased a Helix LTE ultra dated the software to the latest Dec 2019. Then up loaded a full backup I had from march in 2019 from my old floor unit ... but I have to say it does not sound the same !!! Its more compressed and some sounds are scooped now levels different. Just not good ....thinking of going back to the full floor again although I love the layout of the lite really like it ..anyone else had problems with sharing between these units ?