Atmos - Does the speaker type really matter? - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 16 Old 11-26-2019, 07:37 PM - Thread Starter
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Atmos - Does the speaker type really matter?

I am about to pull the trigger on my 5.2.4 HT build and I am curious about the atmos speakers. I keep hearing about how much being off-axis really makes a big impact for the speakers so it would be best to point the atmos speakers at the listening position. Below are a few options for speakers I have been looking at but I am not sure if being able to point/angle the speakers will really matter for the off axis stuff. Also I am not sure if I should worry about there being a difference in the sound from say a Volt 10 vs the other smaller speakers. If I did the Volts I would recess the angled boxes into the ceiling. Above the ceiling is the attic so I have plenty of room and access to install things.

I would post the links but I haven't posted enough yet.

Monoprice Alpha Ceiling Speaker Dual 5.25in Carbon Fiber Surround 2-way Vari-Angled (single)

Monoprice Caliber In-Ceiling Speakers, 8in Fiber 2-Way with 15° Angled Drivers (pair)

HDX-R65AIM High Definition In-Ceiling Speakers

HDX-R80 High Definition In-Ceiling Speakers

Volt 6, Volt 8, or Volt 10


LCR - 1099s
Surrounds - Undecided but something DIY
Subs - 2 Full Martys or about 16 of those 12" JBL speakers
Receiver - Denon AVR-X4500
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post #2 of 16 Old 11-26-2019, 07:59 PM
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Ideally, atmos speakers should be wide dispersion and full range. If they aren't, or if the ceiling is low, then an aimable tweeter would be beneficial. Generally, it's not as crucial for the woofer to be aimed. They should line up with your front L/R.

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post #3 of 16 Old 11-26-2019, 09:49 PM - Thread Starter
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How does that work for the Volt 10s since they don't have a tweeter?
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post #4 of 16 Old 11-26-2019, 10:18 PM
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I use 4 of these for my 7.2.4 setup.


https://www.amazon.com/Polk-Audio-Pe...tronics&sr=1-3

...finally retired and spending time in my dedicated HT!!!

SPARKSPLEX HT - Epson 6040 3D/4K UB Projector; 110" 16x9 Dalite HD Progressive Screen; Sammy 3D/4K K8500 region free; 7.2.4. w/Def Tech speakers, Earthquake P12v2 Subs; Auto Source 100vs Amp; Denon 4300H; MX990 Remote; 5 Bello chairs; Coaire Mini-split.
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post #5 of 16 Old 11-26-2019, 10:45 PM
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Quote:
Originally Posted by Cotton1 View Post
How does that work for the Volt 10s since they don't have a tweeter?
It does have a tweeter...just not an adjustable one.

Marantz SR7013, Polk Signature S60s/S30/S15s/HTS12s, Polk MC80 (x4), AC Infinity T9/S9, AAB4 HTPC,...still to come - Panasonic DP-UB820K, 82" 4K QLED or eqv.
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post #6 of 16 Old 11-26-2019, 10:52 PM
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Quote:
Originally Posted by inspector View Post
I use 4 of these for my 7.2.4 setup.


https://www.amazon.com/Polk-Audio-Pe...tronics&sr=1-3
Excellent choice 👍😉

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post #7 of 16 Old 11-27-2019, 08:57 AM
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Quote:
Originally Posted by Cotton1 View Post
I keep hearing about how much being off-axis really makes a big impact for the speakers so it would be best to point the atmos speakers at the listening position.
That's true for ALL your speakers. Atmos didn't change the physics of sound reproduction. All your speakers, whether placed around you or above you, should have wide enough dispersion to cover the listening area and have reasonably consistent response off-axis so that listeners hear relatively similar sound. Speaking of consistency, it would help if the speakers you use for surrounds AND heights sound similar to your 1099 LCRs. So if you're going to DIY your surround speakers, might as well do the same for the height speakers.
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post #8 of 16 Old 11-27-2019, 09:16 AM - Thread Starter
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Well that kinda stinks since the HTD atmos speakers are ~$50 each and the Volts are ~$150-200 each depending on which size I get.
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post #9 of 16 Old 11-27-2019, 09:18 AM
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Quote:
Originally Posted by Darren Chan View Post
Ideally, atmos speakers should be wide dispersion and full range. If they aren't, or if the ceiling is low, then an aimable tweeter would be beneficial. Generally, it's not as crucial for the woofer to be aimed. They should line up with your front L/R.
I used aimable tweeter ceiling Paradigms, though fished for a while to get a discount on a four packer:

https://www.paradigm.com/en/in-ceili...s/ci-pro-p80-a

Playing with the hobby knife cutting into the plaster suspended ceiling tiles (the fiberglass replacements could not support the weight) and gluing burlap was not fun, but after the first ruined tile the rest were perfect.
Making the cable with 12AWG Belden and silver solder was fun, am I getting addicted to rosin or is just the Catholic in me that loves incense

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Last edited by bobpaule; 11-27-2019 at 09:24 AM.
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post #10 of 16 Old 11-27-2019, 09:30 AM
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Quote:
Originally Posted by Cotton1 View Post
Well that kinda stinks since the HTD atmos speakers are ~$50 each and the Volts are ~$150-200 each depending on which size I get.
Consistency is desired, not required. If you're OK with sounds changing as they move from speaker to speaker, then save some money and don't worry about maintaining consistent sound across your entire speaker layout.

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post #11 of 16 Old 11-27-2019, 11:08 AM
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"then save some money and don't worry about maintaining consistent sound across your entire speaker layout."

and depending on which type of REQ is used

that algorithm will implement some changes anyway

and curiouser

convinced as I am about the value of DIY

how can the HTD $50 speaker, the price of which includes marketing, warehousing, advertising, salaries and so forth

begin to compare to "parts at cost + minimally nominal handling mark-up" for the DIY kits

while spending more doesn't always mean you get more . . .

sounds like money and time well spent
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DIY FAN Denon X4400 , ATI A 2000 for 7.4.6 SCATMOS Sammy 82" 4K/HDR
L/R: Fusion 15 V2 , C: 88 Special , SL/SR: 88 Special(V2) , RL/RR: F-3, TF/TR: Volt 6's TM: SLX, FH: F4Q4
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post #12 of 16 Old 11-27-2019, 11:45 AM - Thread Starter
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I know the Volts will win hands down compared to the HTD ceiling speakers if you were NOT using them as ceiling atmos speakers but since only certain sounds are played through the ceiling sounds I didn't know if it would matter. I keep thinking that sounds like rain wouldn't matter but if it was a helicopter or airplane flying over head that would be a lot different. I figured the Volts would sound more full.
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post #13 of 16 Old 12-01-2019, 02:58 AM
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Quote:
Originally Posted by asarose247 View Post
"then save some money and don't worry about maintaining consistent sound across your entire speaker layout."

and depending on which type of REQ is used

that algorithm will implement some changes anyway

and curiouser

convinced as I am about the value of DIY

how can the HTD $50 speaker, the price of which includes marketing, warehousing, advertising, salaries and so forth

begin to compare to "parts at cost + minimally nominal handling mark-up" for the DIY kits

while spending more doesn't always mean you get more . . .

sounds like money and time well spent

side bar: is there a reason your mains are not wider apart?
Seems you have the room to do it.
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post #14 of 16 Old 12-01-2019, 04:57 PM
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yes there is room,
with the rack in position I can get about another 12"

moreover, it's the toe-in that makes a more cohesive sound field than actual separation.

DIY FAN Denon X4400 , ATI A 2000 for 7.4.6 SCATMOS Sammy 82" 4K/HDR
L/R: Fusion 15 V2 , C: 88 Special , SL/SR: 88 Special(V2) , RL/RR: F-3, TF/TR: Volt 6's TM: SLX, FH: F4Q4
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post #15 of 16 Old 12-03-2019, 05:22 AM
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I went with Speakercraft(7in) in ceiling and Dayton(8in) in walls for an 11.1 setup. I wish I knew about the dayton in ceilings, I would have got those to save money. I wanted full range and soft dome so it's easier on the ears, not dissapointed.
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post #16 of 16 Old 12-03-2019, 11:40 AM
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be sure to report back after the install

we want to know how the REQ and BM reset xo'd and such

and how do the ATMOS demos sound

DIY FAN Denon X4400 , ATI A 2000 for 7.4.6 SCATMOS Sammy 82" 4K/HDR
L/R: Fusion 15 V2 , C: 88 Special , SL/SR: 88 Special(V2) , RL/RR: F-3, TF/TR: Volt 6's TM: SLX, FH: F4Q4
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