3 front speaker placement inwall

[backstabbin]

hey guys so im needing help on where to put my 3 dali phantom s180 in wall speakers, at first i was going to put 1 to the left and right side of my monitors and last one under the desk i have been told this is a terrible idea what about all 3 above the monitors tho? the height from my floor to my monitors is around 12 foot so they would sit just above them

 

[backstabbin]

Yes, under the desk is a bad idea. You'd get very little upper midrange or treble.

I take it that the bit where you wrote "
the height from my floor to my monitors is around 12 foot" is a typo? It's either that, or you are the world's tallest man and you've had your house built specially or that's a room with 20ft (6m) high ceilings in a stately home.

Did you buy these in-walls just for use when sitting at your desk?

**** yes a typo lmao and no i hope not with how much i spent lol having electric screen rolling out the ceiling it will be mainly to watch movies with but maybe use the pc od time with it

 

[backstabbin]

So you've bought and acoustically transparent screen, then?

no i havent i bought the euro screen react 3 but i don't see the problem with the speakers being to the left and right also 1 under my desk if they arent being blocked by anything i have people telling me its fine then others saying it wont lol what do i do

 

[backstabbin]

You've got conflicting advice because you're trying to do two things that are poles apart in their requirements from the gear. It hasn't helped here either that you've only given part of the story. Is there any other relevant information to add?


Dealing with what you've told us so far - and bearing in mind that this could change as new information is added by you - then mounting the speakers so that they end up blocked behind a fabric screen is a bit of a non-starter. I wouldn't recommend it for someone with a £100 centre speaker, so it's definitely not on the cards when the centre speaker that's going to be blocked is £1,500.

This then backs you in to a corner. The only place left for these speakers is below the desk. However, that presents a new set of issues.

First, it's the minor problem of the sound being blocked when you're at your desk. You can't get around that. No one has yet made acoustically transparent tables. You can play the system in stereo, but even then, you're relying on the sound from the left and right tweeters reaching you. The Dalis have a hybrid ribbon + dome tweeter arrangement, but if you understand the technology you've just thrown 3 x £1500 at, then you'll also understand that the ribbon tweeter's wide dispersion isn't the 160 degrees that you'll need for the speakers to image properly at such a short seating distance. Also, the reason the ribbon is supplemented with a dome tweeter is that Dali's ribbon is only contributing above 15,000Hz. That means from 2,500Hz to 15,000Hz you're relying on a conventional tweeter which isn't a wide dispersion device.

Now let's look at this from the perspective of a home cinema.

Ideally the front three speakers should be aligned horizontally so that the tweeters are all at the same level. This isn't always possible, but with conventional tweeters there's a little flexibility because they disperse vertically as well as horizontally. Not so the ribbon tweeters. They're more like those nightclub laser displays that make a wide and flat fan with very little thickness.

Next, we consider what happens to the sound of a speaker if you box it in between the floor and a desk above. The answer is that you get a lot of early reflections that then muddle the sound. That's not really what you want to hear after spending the thick end of £5,000 on your front speakers.

ok so i have cancelled the screen and im going to look for an acoustic screen if i am to place all 3 speakers at the front above my monitors with the left and right toe into the middle of my seating would this be better ? room dimensions are 11.5 foot wide 17 foot long, im using them mainly for movies but maybe with my pc also my seating will be 8 foot away from the screen it's self 12.5 foot from the front wall

 

[backstabbin]

You've got conflicting advice because you're trying to do two things that are poles apart in their requirements from the gear. It hasn't helped here either that you've only given part of the story. Is there any other relevant information to add?


Dealing with what you've told us so far - and bearing in mind that this could change as new information is added by you - then mounting the speakers so that they end up blocked behind a fabric screen is a bit of a non-starter. I wouldn't recommend it for someone with a £100 centre speaker, so it's definitely not on the cards when the centre speaker that's going to be blocked is £1,500.

This then backs you in to a corner. The only place left for these speakers is below the desk. However, that presents a new set of issues.

First, it's the minor problem of the sound being blocked when you're at your desk. You can't get around that. No one has yet made acoustically transparent tables. You can play the system in stereo, but even then, you're relying on the sound from the left and right tweeters reaching you. The Dalis have a hybrid ribbon + dome tweeter arrangement, but if you understand the technology you've just thrown 3 x £1500 at, then you'll also understand that the ribbon tweeter's wide dispersion isn't the 160 degrees that you'll need for the speakers to image properly at such a short seating distance. Also, the reason the ribbon is supplemented with a dome tweeter is that Dali's ribbon is only contributing above 15,000Hz. That means from 2,500Hz to 15,000Hz you're relying on a conventional tweeter which isn't a wide dispersion device.

Now let's look at this from the perspective of a home cinema.

Ideally the front three speakers should be aligned horizontally so that the tweeters are all at the same level. This isn't always possible, but with conventional tweeters there's a little flexibility because they disperse vertically as well as horizontally. Not so the ribbon tweeters. They're more like those nightclub laser displays that make a wide and flat fan with very little thickness.

Next, we consider what happens to the sound of a speaker if you box it in between the floor and a desk above. The answer is that you get a lot of early reflections that then muddle the sound. That's not really what you want to hear after spending the thick end of £5,000 on your front speakers.

my seated height is around 46 inches the speaker height will be around 51 inches that's just above the monitors