NO Side Speakers in an atmos system?


Hey guys I hope you can answer this.
 I am looking to build a theater and have zero place to put side speakers.  I have the rears and the over heads covered plus the main front three and sub.  However my question is this, does my Pre/pro (marantz 8802a) take the signals normally sent to the side channels and send them to the back speakers if there are no side speakers?  I would hate to lose two important channels that seem more important than the rest.

Part two of this question depending on the answer from the first.

Should I use the rear speakers as side speakers?  Meaning, that I have the rear speakers hooked up to the side speaker terminals of the pre?

Thanks for your help.
Mark
mgould
Does the pre/pro have automatic setup? If so, try both connections (rear and side) and see which sounds better. Just remember to run the setup routine after you make the wiring changes. I'm guessing you would want to connect the back L&R speakers to the rear speaker connections.


You will need to use the surround channels (side) even if the speakers are on the rear. The basic 5.1, front L&R, center, surround L&R, and subwoofer are all discrete audio channels and should always be used. Everything else is created by matrix processing.

So are you guys saying that a Atmos set up is 7.1?.

(2) Front, (2) rear, (2) overhead, center +sub

Can receivers (Like Denon) that use side channels be re routed to be used as the Atmos overhead channels?

ozzy

There are many ways to setup a Atmos system:
https://www.dolby.com/us/en/guide/speaker-setup/index.html

But, can the side channels be used as the overhead Atmos channels?

ozzy

You need Atmos receiver and Atmos speakers:
https://www.dolby.com/us/en/guide/speaker-setup-guides/5.1.2-overhead-speaker-setup-guide.html
Atmos speakers are not required.  I already have the atmos receiver.  But I wonder if the side and rear channels can be combined in the processing by the receiver?  If both signals through processing, and not cabling, can be rerouted through other channels.

Let me ask this another way.

When I play a Atmos Blu Ray through my Oppo 105 outputting via the 7.1 channel RCA analog output of the Oppo into a Denon Receiver (again via the RCA inputs), the side speakers seem too be playing the extra channels that are dedicated to the Atmos track.

If, that is true, then all I would need is to mount the side speakers on the ceiling.

Am I missing something?

ozzy

I wonder if the side and rear channels can be combined in the processing by the receiver?
Yes, if you select 5.x.x setup
Atmos speakers are not required.
Unless you use overhead speakers

When I play a Atmos Blu Ray through my Oppo 105 outputting via the 7.1 channel RCA analog output of the Oppo into a Denon Receiver (again via the RCA inputs), the side speakers seem too be playing the extra channels that are dedicated to the Atmos track.

If, that is true, then all I would need is to mount the side speakers on the ceiling.

Am I missing something?

ozzy

Yes, you can mount the side speakers on ceiling, and change the setting on your receiver from 7.1 to Atmos 5.1.2
https://www.dolby.com/us/en/guide/speaker-setup-guides/5.1.2-overhead-speaker-setup-guide.html
I play a Atmos Blu Ray through my Oppo 105 outputting via the 7.1 channel RCA analog output of the Oppo into a Denon Receiver (again via the RCA inputs)
Dolby Astmos must use HDMI connection and set output to bitstream out to receiver/prepro, analog output will not give you dolby astmos, what you get is 7.1 surround decoded by your blu ray player.

Ok. My old Denon does not have HDMI inputs nor Atmos settings if that is what is required..

ozzy

ozzy,
Btw, to my ears Dolby Astmos dose not made a day and night difference.
I would agree, best improvement is a better blending of the surround channels into a larger sound field

Just got the new Oppo 205. (Again, I am using the analog outputs into my Denon 5803 receiver). When playing a video and I select from the on screen menu the Atmos over the 5.1 setting I do hear discreet sounds through my 7.1 speaker set up.

So, is the Atmos track being blended into the side channels?

ozzy

I had a similar problem. i have a 5.1.4 all in-wall/ in-ceiling setup. 5 in-wall bed channels and 4 in-ceiling atmos speakers. My surrounds are on my back wall, my room is a rectangle. The LCR are in spec and the atmos speakers are also in spec the surrounds are not, however putting the speakers in direct line with the fronts and running audyessy everything sounds great. I have 3 B&W CWM7.3 speakers up front and 2 B&W CWM7.4 in the back for surrounds and 4 B&W CCM682 for Atmos and a Velodyne DD10sub which i am currently selling. I have my rear surround speakers in amp setup in my maranta 8802a as surrounds not surround backs.  Just to clarify you are not asking about wides are you?  Wide channels in the 8802a were eliminated with atoms and everything that would go to a wide channel is now sent to the atoms speakers