I have only used Dirac with the 4800.Hi, Have you bought in to Dirac? I have the 4800 and am overall happy with it. Debating purchasing Dirac. Any one out there bought in and regret it? Thanks. Happy listening!
My point of comparison is a Meitner MA3 DAC with an Audiolense convolution filter that has 50,000+ taps designed by Mitch Barnett. For music the convolver runs on Roon, for TV a lower latency version runs on a PC with the audio extracted via toslink. The TV with the Meitner on stereo sounds great, but it lacks the fun factor of surround.
So I decided to give the 4800 a try.
I have a custom made XLR AB switch that can switch from the Meitner to the 4800 and I’m only using the 4800 amps for the surround speakers. The Meitner with the Roon Audiolense convolution is stunningly good for music and the 4800 with Dirac does not compete at this level. That said, for surround I much prefer the 4800 with Dirac. I expect some of this is the HDMI audio, but the electronics in the 4800 and sophistication of Dirac I’m sure are also important.
My speaker set up is very simple, just a 4.0 system with TAD R1s in front and custom made small bookshelf speakers as rears. But even with that the 4800 sounds great with superb imaging left to right and front to rear. I suspect much of that is from Dirac matching the FR and timbre of the speakers, and also accurately steering audio to the 4 speakers. The bass management is quite good and even with no sub, LFE is great and the small bookshelf speakers sound as if they were large speakers even with the crossover set to 100hz.