IndustryStandard My AV amp has a “Straight/Direct” button for exactly that purpose.
Home theaters/ sound bars
I finally got the auto calibration working after realizing I had the wrong speaker-selection put in. HUGE difference. The downside of going to real surround sound is now I have issues with only stereo-stuff. For example Mubi is mostly all 2.0, and all of SkyShowtime (which in Finland is the service that has Paramount+, Peacock and Showtime-stuff, plus Sky-originals) is also all stereo only. Another reason to watch stuff on Blu Ray instead, much better sound. 
TitianWarrior yeah, you should consult the manual. Most amps have something like that, where it puts through the input sound as it is with no added effects. In my Sony it is Pure Direct. I use it all the time, when the amp tries to make something surround that isn’t it always sounds a bit shit.
Thanks. Seems like amps with pure direct are the way forward. Will have a gander which brands have that option.
Over egging…….well, as I want to have my decks in my lounge as well as my TV all running through one set of speakers and one amp that does both jobs…..I think i’m under egging/full on egg whiting. Otherwise id have more speakers and amps than RicherSounds . Wouldn’t get past Mrs IS
TitianWarrior What amp do you have?
IndustryStandard Sony STR-DH 790. It’s the cheapest decent AV receiver with Dolby Atmos.
IndustryStandard it’s a pretty old yamaha RX-V475, I think I’ve had it around 10 years.
I’ve got an even older Yamaha, built like a tank, no fuss and very loud. That’s got a ‘Straight’ button as well but never hooked it up to a mixer/decks to see what it’s like. Going to give it a go actually.
I’m pretty sure such a feature is common. Trust Sony to call it something fancy…‘Pure Direct’.
8 days later
Another question. Do any of your amps send bass via the sub out RCA when in direct/pure/stereo mode whilst DJing? I have a separate sub and have heard some AVRs dont send any sub signal when in this mode .
IndustryStandard I’m pretty sure that’s in the settings too, it’s more common that the sub is in use with two channel stereo sound too.
17 days later
So it took me only two months to cave in. I ordered a pair of satellite speakers to put in as front height speakers to get true Dolby Atmos. 99 € a pop, these are very well reviewed.
https://www.cambridgeaudio.com/usa/en/products/speakers/minx/min-12
Is this thread still going?!
Along_the_Wire I’ll get to your mix eventually, no need to get personal.
Wasily depends on the room. Our home theatre is tiny, but I think in any setting front highs > upfiring atmos speakers. Most Atmos theatres have the ceiling speakers pointed towards the audience rather than down, so I’m basing my theory on that. There are actual ceiling speakers for Atmos also, but I think drilling holes for them, and the wiring is a bit extreme.
Homegrove tongue in cheek, H - absolutely no offense intended my old son!
Along_the_Wire I was also joking. 
Amps I don’t actually have a sub. The front speakers are 8 inch, and I have directed the amp to put all the bass on those. Judging by any Nolan-movie on disc with lossless audio that’s plenty enough for our tiny home theatre-room.
We also don’t have a sofa there, but a pair of lounge chairs (a friend said it makes us look like we’re living in a retirement home and hurt my feelings). If I do get a sub one day I imagine putting it between the chairs would be a good location.