• http://www.areadvd.de/tests/special...r850-mit-dolby-atmos-und-dirac-einmesssystem/
• http://www.areadvd.de/tests/xxl-tes...tmos-ass-mit-dirac-einmessung-fuer-3-300-eur/
Those two Arcam AV receivers (the latest) come with Dolby Atmos, DTS:X and Dirac Live room calibration & EQ system.
They are more expensive than the Japanese/Chinese AV receivers...Denon/Marantz, Onkyo/Integra, Pioneer, Sony...
The Arcam 550 is more affordable than its big brother, the 850.
I used to follow them closely, but it's been a while now...months. The latest news was this: Dirac Live is now effective for all eleven channels, when adding external power amps.
And the Arcam sound is above the other receivers; it's more hi-end quality sound for music listening too. Below that, comes Denon or Yamaha flagship receivers.
We're not talking high-end separates here, but high-end AV receivers, fully loaded like computers with a bunch of apps and Internet connectivity and the latest audio decoders and video processors and 4K true pass thru. And the best room EQs inside receivers...Dirac Live (Arcam), Audyssey MultEQ XT32 latest advancements (offers manual adjust for fine tuning if desired - Denon/Marantz), and advanced YPAO from Yamaha with an incredible amount of manual parameters where you can spend a big part of your life playing with...if you wish.
Yamaha is generally a solid company with good sound reliability.
But yes, Arcam is @ the top, for sound quality.