Absorption from 100 hz - 2000 khz

[Walnut Horns]

Hi All, my first post here. I recently had my horns installed in my dedicated listening room and the system is now oriented 180 degrees from my previous setup. The horn builder took some measurements and strongly recommended installing absorption covering 100 hz - 2000 khz. The puppy barking test disclosed significant slap echo and midrange bounce.

For context, the horn system is comprised of a mid-bass horn, mid-range horn and supertweeter covering 90 hz- 20 khz. For bass, I am using a Crown dsp amp driving two large sealed cabinets with a 15" pro driver in each.

How would you go about accomplishing this? I am open to all suggestions. Thanks.

 

[amirm]

Welcome to the forum and good first post!

Slap echo is an issue of parallel walls with the sound bouncing back and forth between them. It is the "zing" that you get when you slap your hands in a very live room. Its frequency is much higher than 100 Hz which is good news because even a 2 inch absorber is enough to kill it. Put anything padded that is at least one inch thick opposite of the speaker and you should be good to go. You can buy commercial absorbers or make your own out of fiberglass in a frame of your own.

Make sure that is the problem you have though. The thin absorber above will not be broadband which means it will attenuate mid to high frequencies disproportionately to lower ones. In other words, you will be creating an EQ in your room! Broadband absorbers should be at least 4 inches thick.

Do you have a picture of your room or description of it? We can get more specific with more details there.

 

[Walnut Horns]

Thanks Amir. I will post photos and room dimensions this evening. We can go from there.

 

[Nyal Mellor]

The question is how much treatment and where to put it. And that depends on what issues your room has.

Read this: http://www.acousticfrontiers.com/buy-right-acoustic-panels-part-1/

 

[Walnut Horns]

Nyal, thank you for the response. I read through the materials and understand your view. May I ask what specific measurements are required to appropriately determine the type and number of room treatments needed? I may already have them. If not, I'll need to have additional measurements taken.

 

[Nyal Mellor]

Nyal, thank you for the response. I read through the materials and understand your view. May I ask what specific measurements are required to appropriately determine the type and number of room treatments needed? I may already have them. If not, I'll need to have additional measurements taken.

In general frequency response and time decay measurements (low frequency ringing, mid/high frequency reverberation time).

More here: http://realtraps.com/art_measuring.htm

 

[Acousticspro]

Hi All, my first post here. I recently had my horns installed in my dedicated listening room and the system is now oriented 180 degrees from my previous setup. The horn builder took some measurements and strongly recommended installing absorption covering 100 hz - 2000 khz. The puppy barking test disclosed significant slap echo and midrange bounce.

For context, the horn system is comprised of a mid-bass horn, mid-range horn and supertweeter covering 90 hz- 20 khz. For bass, I am using a Crown dsp amp driving two large sealed cabinets with a 15" pro driver in each.

How would you go about accomplishing this? I am open to all suggestions. Thanks.

Go to www.acousticroomtreatments.com and check their products

 

[amirm]

Go to www.acousticroomtreatments.com and check their products

Are you affiliated with the company? If so, our terms of service required disclosure of that in your signature.

 

[Acousticspro]

Are you affiliated with the company? If so, our terms of service required disclosure of that in your signature.

we just bought some of there products and they need some help, great products at a great price.

 

[amirm]

we just bought some of there products and they need some help, great products at a great price.

Your alias is the same as the company name and hence my question. Why enticed you to buy their product and what help are you providing them?

 

[Acousticspro]

Your alias is the same as the company name and hence my question. Why enticed you to buy their product and what help are you providing them?

well that was the first name that come to my mind, and for the help just recommending them nice guys very helpful .