Hi all, its been a long time since I bought a new AV amp and my first foray into Atmos. Now, I want to go for a 5.1.4 setup which clearly means a 9 channel amp. I have investigated this for a while now and my option appears to be only amps that cost over £1k eg Denon X3700H. Have I got this right ? or am I missing something big ?. Thank you.