Building a listening room

[Emmett Scully]

Hello,

I want to have a go at making and selling boutique speakers, so I'm going to build a listening room. I wanted to ask the knowledgable people here for advice.

The goal is to have a room which will allow for the clearest evaluation of speakers. To this end I want the walls to be reflective, but for there not to be any issues with the sound which would mask the sound quality.

The internal dimensions in feet are 14x22.5x36.5
The walls and floor will be concrete.
I'm thinking the roof could just be galvanised sheets.

My question is; how can I get a good in room frequency response, i.e. not too rolled off at the top end.

This needs to be cost effective and non-resonant.

Maybe Plywood over the concrete would even the response, and then the right paint over that might improve matters further.

Any thoughts?

 

[u-sound]

hi and welcome!
are you planing on becoming a manufacture?

 

[Ritmo]

Welcome to AS Emmett!

 

[nicoff]

Hello,

I want to have a go at making and selling boutique speakers, so I'm going to build a listening room. I wanted to ask the knowledgable people here for advice.

The goal is to have a room which will allow for the clearest evaluation of speakers. To this end I want the walls to be reflective, but for there not to be any issues with the sound which would mask the sound quality.

The internal dimensions in feet are 14x22.5x36.5
The walls and floor will be concrete.
I'm thinking the roof could just be galvanised sheets.

My question is; how can I get a good in room frequency response, i.e. not too rolled off at the top end.

This needs to be cost effective and non-resonant.

Maybe Plywood over the concrete would even the response, and then the right paint over that might improve matters further.

Any thoughts?

My advice is that you talk to professionals and/or companies that specialize in acoustics. Otherwise you are likely to get a whole bunch of opinions here (some contradictory I'm sure) from well intentioned folks who are not experts in the field.

 

[no32]

Do you need it for listening or measuring purposes ?


Sent from my iPhone using Tapatalk

 

[FDPDK]

Welcome to the Forum

 

[Emmett Scully]

Thanks Kiwi. I don't think there will be early reflections given that the speakers will be 6 feet from the side walls.

What do you think about the high frequency response of concrete?

 

[u-sound]

depends on the structure of it.

however, with respect, you will have a hard and long time becoming a sucsessful speaker manufacture.

 

[Stehno]

Hello,

I want to have a go at making and selling boutique speakers, so I'm going to build a listening room. I wanted to ask the knowledgable people here for advice.

The goal is to have a room which will allow for the clearest evaluation of speakers. To this end I want the walls to be reflective, but for there not to be any issues with the sound which would mask the sound quality.

The internal dimensions in feet are 14x22.5x36.5
The walls and floor will be concrete.
I'm thinking the roof could just be galvanised sheets.

My question is; how can I get a good in room frequency response, i.e. not too rolled off at the top end.

This needs to be cost effective and non-resonant.

Maybe Plywood over the concrete would even the response, and then the right paint over that might improve matters further.

Any thoughts?

Wow, that would be a very nice sized room to work with. The clearest evaluation potential for speakers in any given room is to ensure the speakers are positioned in AN optimal and preferrably THE location within the room. This is how speakers are tuned acoustically to a given room. By dialing them in acoustically which comes by finding the ideal position.

If/when this happens your speakers bass will transform from an average bass into a superior / musical bass few seem aware of. Moreover, at the time a few other ancillary benefits wil to light including a significantly more balanced and warm presentation and with not just more pronounced, impacting, deeper, and more well-defined bass, but you should also hear more bass notes that were inaudible when the speakers were placed in an inferior position.

It's not easy finding an optimal or the optimal speaker location and in fact it can be perhaps the most difficult thing to accomplish in high-end audio. In one room it took me 9 months of moving the speakers around 1/2 inch here or there before finding it. But bear in mind I was only moving the speakers a few times each week. But I'm convinced every speaker / room combination has an ideal location for acoustically tuning them and for the diligent types, they will find it eventually. And if you do, it's pretty incredible to listen to with every listening session.

The best news is it's free and does not require any custom room acoustic treatments whatsoever. All one needs is a reasonble room and by that I would include:

- a solid flooring system. Concrete is excellent. If any sub-flooring goes on top of the concrete it should not be free floating but anchored or glued to the concrete.

- wall-to-wall carpet and pad.

- a minimum amount of carefully chosen chairs, sofa's, ottomans, etc.

- some artwork on the walls preferably without reflective surfaces but no big deal if they do.

- with a room that size I would definitely consider a few smaller trees purely for aesthetics perhaps at the front wall behind the speakers, etc.

But that's really about it. Besides most of your time will be spent trying to find the optimal speaker positions anyway.

 

[CPP]

Sounds like you have a plan.