Dolby Atmos® FAQ

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I actually have a 5.1.4 speaker system but only have 7.1 channel AVR so it's really a 5.1.2 Atmos system with front upward firing (Dolby Atmos). I thought given the futile nature of upward firing Atmos and given the steeper angle that it fires sound upwards, the sound reaches just behind the center of the room. And since my surround sound system is "couch against the wall" it occured to me, why don't I bring the upward firing speakers from front to the rears for the Atmos effect.

So all in all, for fronts it was four short wires right behind the console, but now I'll be routing 4 wires across the room.

Just a little experiment till I ultimately drill holes in the ceiling for actual Atmos.
 
Hello everyone,
I kept searching for a thread only related to the accessories part of an Atmos setup and without any luck I have chosen to post my question here.

I was wondering if there are 4 channel speaker wires allowing me to run two channels off a single speaker unit with upward firing Dolby Atmos speaker. I would run two speakers wires, but it occured to me that there has to be 4 channel speaker wires too. But my search on Amazon has been futile. The wires are either too thick (I can't conceal to some extent) and black or brown in color, however now that I type this I occurs to me that I could simply paint the section of the exposed wires my wall color to camaflouge them. Nonetheless such 4 channel wires are pretty pricey on Amazon and too thick and...way too much for the small space that I have.

250ft 16AWG 4 Conductors (16/4) CL2 Rated Speaker Cable True Spec & Gauge Low Voltage LED Copper Clad Aluminum Wire, Pull Box (for in-Wall Installation) (16AWG / 4 Conductors, 250ft) https://a.co/d/jdGvIur
I used this to wire 4 heights for Atmos:
https://www.amazon.com/GearIT-4-Con...refix=GearIT+14/4+,electronics,99&sr=1-3&th=1
 
Hello everyone,
I kept searching for a thread only related to the accessories part of an Atmos setup and without any luck I have chosen to post my question here.

I was wondering if there are 4 channel speaker wires allowing me to run two channels off a single speaker unit with upward firing Dolby Atmos speaker. I would run two speakers wires, but it occured to me that there has to be 4 channel speaker wires too. But my search on Amazon has been futile. The wires are either too thick (I can't conceal to some extent) and black or brown in color, however now that I type this I occurs to me that I could simply paint the section of the exposed wires my wall color to camaflouge them. Nonetheless such 4 channel wires are pretty pricey on Amazon and too thick and...way too much for the small space that I have.

250ft 16AWG 4 Conductors (16/4) CL2 Rated Speaker Cable True Spec & Gauge Low Voltage LED Copper Clad Aluminum Wire, Pull Box (for in-Wall Installation) (16AWG / 4 Conductors, 250ft) https://a.co/d/jdGvIur

Blue Jeans Cable sells Canare 4S11 Cable which is a 4 conductor 14 gauge cable suitable for bi-wiring, but it would also work for your use.
 
That's all fine but my real question for options for 2 channel speaker wires. 16 gauge. Or do I just use the 100 feet roll of 1 channel wire, glue it together into a single wire so I don't have two wires dangling from a single speaker. Again, this is upward firing Atmos speaker so it's handling 2 channels.
It looks to me like you’re trying to get the smallest wiring you can for a couple of bounce speakers. You can probably save a little by combining the black connections and using a three-wire cable. Most stereo amplifiers have a neutral terminal signified by a black binding post, although you should verify that before you try it.

Since it’s the atmos channels and probably won’t be handling large amounts of power, you could also use something like 18 or 20 guage wire, although I wouldn’t combine the neutral in that case.
 
Been loving this thread. I have a Sony HT-H9 7.1 and it sounds okay but looking to upgrade. Is there a dedicated thread that just focusses on equipment suggestions for those of us who want to build out an Atmos system? I've been searching for about 45 mins and have yet to see one. Thanks in advance!
 
Been loving this thread. I have a Sony HT-H9 7.1 and it sounds okay but looking to upgrade. Is there a dedicated thread that just focusses on equipment suggestions for those of us who want to build out an Atmos system? I've been searching for about 45 mins and have yet to see one. Thanks in advance!
Reviews from ASR are a good guide for AVRs

https://audiosciencereview.com/forum/index.php
 
Been loving this thread. I have a Sony HT-H9 7.1 and it sounds okay but looking to upgrade. Is there a dedicated thread that just focusses on equipment suggestions for those of us who want to build out an Atmos system? I've been searching for about 45 mins and have yet to see one. Thanks in advance!
You could start a new thread either here or at ASR stating some particulars like your room size,
budget, and desire (5.1, 7.1, Full Atmos?).

I disagree, ASR focus too much on one test bench measurement SINAD.
Then you don't understand ASR and the science of audio..
Not one, gear is tested for noise, distortion, and power, all measurable parameters.

Also when a manufacturer claims to have fixed a problem in firmware ASR don't re-test.
Gear tested is supplied mainly by readers, Amir can't hold onto them forever.
People want them back.
 
I disagree, ASR focus too much on one test bench measurement SINAD. Also when a manufacturer claims to have fixed a problem in firmware ASR don't re-test.
ASR will at least let you know if something is a complete POS. And while there is a focus on SINAD, its not all Amir tests for. With the majority of DACs and amps and such, they are so close in performance, SINAD is pretty much the only differentiator.

And who does re-test when new firmware is released?
 
I disagree, ASR focus too much on one test bench measurement SINAD. Also when a manufacturer claims to have fixed a problem in firmware ASR don't re-test.
No, 'it' doesn't. Certain posters do. Amir is quite clear what SINAD is for -- to rate engineering precision, far beyond what humans can hear. So, for anything higher than a fairly modest SINAD rating, there isn't any likely audible difference. Some people -- audio nervosa types -- need to 'know' their gear has a higher SINAD even if it makes zero audible performance difference. I daresay there's a few of them on QQ too.

Beyond the lowest end trash, buy AVRs for their power (meets your speaker and loudness requirements) and features (e.g. connectivity, decoding, room correction).

And of course, there is no SINAD for loudspeakers, which are the most important hardware component of a system. For that, there's Klippel measurements.
 
ASR will at least let you know if something is a complete POS.
ASR pretty much said my current AVR is close to POS. They didn't test an Arcam AVR31 but the closest model they tested which has the same digital section scored very poorly. I think it sounds great and is a considerable improvement on my previous gear, much more of an improvement than I was expecting. Also Arcam took note of ASR's results and changed something in the DAC config, but years later ASR has neither re-tested it nor withdrawn the now potentially irrelevant poor results. So I take ASR results with a huge pinch of salt.
 
ASR pretty much said my current AVR is close to POS.

In mid 2020

They didn't test an Arcam AVR31 but the closest model they tested which has the same digital section scored very poorly. I think it sounds great and is a considerable improvement on my previous gear, much more of an improvement than I was expecting.

But you were doubtless expecting some. This is why subjective comparisons are unreliable indicators of measured performance.

Also Arcam took note of ASR's results and changed something in the DAC config, but years later ASR has neither re-tested it nor withdrawn the now potentially irrelevant poor results. So I take ASR results with a huge pinch of salt.

Then Arcam should have sent the improved model to Amir to retest, if it cared so much. (Which is something that has actually happened at ASR)

A smart consumer interested in the model and interested in what ASR says, would read the review and the thread, and discover the post-review history of the model.

That's how you dissolve a 'grain of salt'.

A not-smart consumer, well, caveat emptor.
 
ASR pretty much said my current AVR is close to POS. They didn't test an Arcam AVR31 but the closest model they tested which has the same digital section scored very poorly. I think it sounds great and is a considerable improvement on my previous gear, much more of an improvement than I was expected.

This sounds a lot like sour grapes about buying a piece of gear that got a bad review.

When testing an AVR, ASR is mainly concerned with how accurate the DA conversion is and how clean the power amps are. If the digital section of the AVR31 tested poorly, it probably was. And i never read the AVR31 review, but ill bet he never said any of what he measured was audible. He dosent do listening tests for AVRs. The shortcomings of a "close to POS" product may not even be audible these days.

But ASR compares measured DAC performance against the best available, which is typically a moving target anyway. Because an AVR31 didnt objectively compare well to the best available does not mean its going to sound bad. And it would be a tough call to say the best available will sound noticably better than the AVR31. But you say your current system sounds better than your previous system. So maybe some of it is audible.

The ASR evaluation of the power amp section is more telling, and in my opinion, more important. Its not difficult or even expensive to find high performance power amps these days. And that is a traditional weakness of recievers from the beginning and why many prefer seperates. I do.

If the ASR review shows a poorly measuring amp section, its a red flag. High noise, not meeting published power rating, frequet shutdowns, stability construction, excessive heat, I'd pay attention to this stuff if i were buying an AVR. That, a digital section that isnt broken, and the features you want.

Also Arcam took note of ASR's results and changed something in the DAC config, but years later ASR has neither re-tested it nor withdrawn the now potentially irrelevant poor results. So I take ASR results with a huge pinch of salt.
So Arcam believes ASR testing is meaningful enough to make product changes based on what was found. That alone gives me a better appreciation for Arcam.

Most equipment ASR tests are loaned and belong to readers. So he wouldant have had that unit to test anyway. If Arcam felt strongly about it they could have shipped him a new updated unit to test. I doubt he would have refused it. There are some instances where the manufacturer made changes based on ASR test results and sent updated samples to ASR for retest and if warranted ASR ammended the review.

Tell me, who in your world removes old reviews? I just read one today from 2003. And who updates a 3 or 5 year old review on thier own? It dosent happen in my experience. The reader can determine how old a review is, and that should be considered as well.
 
Then Arcam should have sent the improved model to Amir to retest, if it cared so much.
No need, it was a firmware update so the same hardware could have been re-tested. I've notice how rarely ASR re-tests anything even if manufacturers fix something. What's the point doing those tests if you don't re-test after fixes?

And thanks for nothing for considering me a non smart consumer.
 
This sounds a lot like sour grapes about buying a piece of gear that got a bad review.
Actually I'm pleased I bought it before I read the ASR review, because ASR might have put me off and I'm delighted with it. So much so I bought my parents a used Arcam A29 integrated stereo amp because it has the same Class G power amps.
The ASR evaluation of the power amp section is more telling, and in my opinion, more important. Its not difficult or even expensive to find high performance power amps these days. And that is a traditional weakness of recievers from the beginning and why many prefer seperates. I do.
I don't have space for separates. And when I tried in this house 20 years ago I got unsolvable problems with mains hum pickup on the pre to power amp interconnects. I'm only 10m from a high voltage sub station.
So Arcam believes ASR testing is meaningful enough to make product changes based on what was found. That alone gives me a better appreciation for Arcam.
It was a firmware change to the DAC configuration. People have theorised Arcam turned on re-sampling (which ASR recommends in general) in the ESS DACs but there is no evidence.
 
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