Proper surround sound

[Kelvin]

Open backed speakers like these typically should be mounted so that they are enclosed. It improves the bass, and reduces sound from travelling to whatever is above them. There’s also a fire regulation depending on what is above them. I fitted all mine inside a fireproof hood and the difference in sound quality vs just having them open was significant. 

[Pocster]

2 hours ago, Kelvin said:

Open backed speakers like these typically should be mounted so that they are enclosed. It improves the bass, and reduces sound from travelling to whatever is above them. There’s also a fire regulation depending on what is above them. I fitted all mine inside a fireproof hood and the difference in sound quality vs just having them open was significant. 

I did read that . I assumed they don’t actually output a lot in atmos ? . Beam and block above so not really worried about sound transfer. Did look at ‘official ‘ sound backing boxes - ridiculously expensive. Link to yours ? . Fire regs 😂 - off a (expletive deleted)ing speaker in an underground house 🤣🤣🤣🤣 - don’t think I’ll worry about that one . Back boxes though for better sound ….. yes please 

Edited June 23 by Pocster

[Kelvin]

The fire regs aren’t to do with the speaker going on fire. You’ve cut a big hole in your ceiling and if there’s a fire in that room it can spread more quickly as the speaker is made of plastic mostly. I have two in the kitchen which has a bedroom above it for example. Depends on the room and what’s above it. I fitted them to improve the sound though. 
 

They do output quite a lot. 
 

Take your pick. You can size it to your speaker. You will need to cut it to fit. They are a pia to fit but with your 1980s office ceiling it will be  easy for you. 

https://ceilingspeakerworld.co.uk/collections/fire-hoods-for-speakers?srsltid=AfmBOoqVbinaygWtUK1gX5ktvnSE2RlAqI6H7o1ggxG4MQ4MJBKM-nDB

 

 

Edited June 23 by Kelvin

[Pocster]

1 hour ago, Kelvin said:

The fire regs aren’t to do with the speaker going on fire. You’ve cut a big hole in your ceiling and if there’s a fire in that room it can spread more quickly as the speaker is made of plastic mostly. I have two in the kitchen which has a bedroom above it for example. Depends on the room and what’s above it. I fitted them to improve the sound though. 
 

They do output quite a lot. 
 

Take your pick. You can size it to your speaker. You will need to cut it to fit. They are a pia to fit but with your 1980s office ceiling it will be  easy for you. 

https://ceilingspeakerworld.co.uk/collections/fire-hoods-for-speakers?srsltid=AfmBOoqVbinaygWtUK1gX5ktvnSE2RlAqI6H7o1ggxG4MQ4MJBKM-nDB

 

 

Yeah but it’s like 50 quid for 1 and I need 4 !

 

I’ll install as is . Then it can bug me “ would it better with an audio hood ? “ for a bit 

 

In this open plan room I’ve just counted 35 lights / sensors etc that are all holes in the ceiling 😊- so I take your point ; but I ain’t worried about that . The leak will put the fire out anyway 🙄😂.

[Kelvin]

In a previous house I made MDF acoustic boxes lined with acoustic foam. Knock something up. 

[Pocster]

13 minutes ago, Kelvin said:

In a previous house I made MDF acoustic boxes lined with acoustic foam. Knock something up. 

Will I really tell the difference audibly ? . I suppose I could make 1 and try content with and without it installed I suppose . So just bolt a lined box over the speaker essentially?

[Kelvin]

Speakers are fitted into enclosed boxes for a reason other than to stop them falling on the floor. 
 

The difference it made to mine was very noticeable. 

Edited June 23 by Kelvin

[MikeGrahamT21]

Do the boxes have to be lined. When I fitted my ceiling speakers I made an airtight OSB box and glued it to the back of the plasterboard, but didn't put any acoustic damping inside it, something I could do of course, can't say i ever thought about it really

[Pocster]

27 minutes ago, MikeGrahamT21 said:

Do the boxes have to be lined. When I fitted my ceiling speakers I made an airtight OSB box and glued it to the back of the plasterboard, but didn't put any acoustic damping inside it, something I could do of course, can't say i ever thought about it really

In theory they should says Google . 
I’m going to try one simple box over one and see if there’s any discernible difference to my limited ears 

[MikeGrahamT21]

5 minutes ago, Pocster said:

In theory they should says Google . 
I’m going to try one simple box over one and see if there’s any discernible difference to my limited ears 

I've got some spare self adhesive neoprene, so will put that on the to-do list, uses up some more crap lol

[Pocster]

Got the front 2 ceiling speakers up . Swmbo’s sat on the sofa ‘ working from home ‘ so unlikely to get the rear 2 in today .

[Pocster]

All atmos ceiling speakers in 👍

[Thorfun]

1 hour ago, Pocster said:

All atmos ceiling speakers in 👍

Does it still look like an office ceiling?

[Pocster]

7 minutes ago, Thorfun said:

Does it still look like an office ceiling?

Nasty bast 

[Onoff]

46 minutes ago, Pocster said:

Nasty bast 

 

A water cooler, filing cabinets and a fax machine would complete the retro look. Maybe a prominent fire exit sign too?

[Pocster]

1 minute ago, Onoff said:

 

A water cooler, filing cabinets and a fax machine would complete the retro look. Maybe a prominent fire exit sign too?

And a buxom secretary surely …

[Onoff]

7 minutes ago, Pocster said:

And a buxom secretary surely …

 

[Pocster]

6 minutes ago, Onoff said:

 

wtf ! You’ve been spying on my SWMBO !!

[crispy_wafer]

Like what you’ve done there, save’s having to paint the ceiling I suppose.  Pretty sure you can get sensors that mount horizontally, saves having to prop up that tile at the back.  

[Pocster]

10 hours ago, crispy_wafer said:

Like what you’ve done there, save’s having to paint the ceiling I suppose.  Pretty sure you can get sensors that mount horizontally, saves having to prop up that tile at the back.  

Yeah it’s a pir and radar sensor . To get 100% reliability of whether someone is on the sofa it worked best there - everything one sensor I think . Also have to 3d print a corner to hide the cables entering the ceiling top left .