That's the 'flattest' in room response I've ever seen without applying serious DSP for room correction. I'd say it's almost impossible unless your system is outside, in an anechoic room or a VERY well treated room. I doubt the measurement is correct unless you've put some serious effort into treating the room. If all checks out right, hats off! 
PS Audio P3, Shunyata ΞTRON Alpha Digital and HC/Furutech power cables, Paul Hynes SR7EHD-MR4, DIY Roon Server & Roon Endpoint running AudioLinux Headless, Phasure Lush^2 USB cable, Audioquest Diamond RJ/E ethernet, Uptone Audio etherREGEN, Mutec MC-3+ USB, Shunyata ΞTRON Anaconda Digital XLR AES/EBU, Devialet Expert 250 Pro CI, Nordost Tyr Reference LS cables, Von Schweikert VR-5 SE Anniversary Edition, Anti-Mode Dual Core 2.0, JL Audio Fathom F112. More detail here.
The Netherlands
The Netherlands
