I bought dirac live for the first time 1 month ago and got my system setup then got refund under 30 days refund policy. But added solidsteel av rack s2-3 just to left of my subwoofer and it fuked up big time my bass and speakers also started having echo issues. Bought in friday sale before at 40000 now had to pay 51000. If you have normal bedroom untreated and on top of that you bought ported subwoofer you are gone. I today reset my denon x4800h and tried audessey setup it has failed big time beofre and today as well , i dont hear any bass in my MLP dont know why. Only DIRAC is the option for you if you have bought ported subwoofer and have bedroom not treated room. So just now ran dirac live and and BOOM BASS IS POUNDING MY CHEST AGAIN. at the exact same position of my chair audessey failed big time. Previously when i used it i made a mistake i guess and my speaker crossover was not greyed out but now my dali opticon 2 mk2 are at my favorite 70hz crossover which i always wanted as they go low till 59hz but audessey only allows 40 60 80 etc not 70. These are the options managed by dirac now and are greyed out. Its worth every penny i like it and now will never return it. good night. saw 8 movie collection really pounds my chest in a good way. good night