Both have 11.1.4 but JBL is better in terms of bass. Also q990c got some technical problems. And some of my viewers are facing issues with is. Q990b is better that this
Sony HT A9 is the best atmos home theatre system. You can place it anywhere you want. Amd q990D abhi tak launch nhi hua hai. Isiliye kaisa hoga bolna muskhkil hai. Aap q990b le sakte ho. Best hai wo bhi
U have a very big room. Under 40000 atmos bar is not suitable for your room. Go for JBL Bar 1300X it comes with 10" big subwoofer with great bus and also has 11.1.4 channels