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Everything You've Ever Wanted To Know About Balanced Armatures: by Eric Hruza from Sonion - Page 5

post #61 of 69
Quote:
Originally Posted by FarCry View Post

 

These damping elements are used between the speaker outlet and the ear canal to smoothen the frequency response. Various acoustical resistances and sizes are available.

Key features:

    • Smoothen and shape frequency response
    • Various acoustical resistances and sizes

 

 

http://www.seltech-international.com/en/Products/Acoustics/Sensors-accessories/Knowles-acoustic-dampers-screens-BF-Series.html

 

hey thanks FarCry

i understood that bit... 

the kinda questions i've are like

 

1. How Dampers work?

2. why their unit is Ohms??.. yeah seriously

3. what kind of change different dampers make to a particular FR..

 

i tried googling them

it tends to take me everywhere

 

 

post #62 of 69
Quote:
Originally Posted by FarCry View Post

 

These damping elements are used between the speaker outlet and the ear canal to smoothen the frequency response. Various acoustical resistances and sizes are available.

Key features:

    • Smoothen and shape frequency response
    • Various acoustical resistances and sizes

 

 

http://www.seltech-international.com/en/Products/Acoustics/Sensors-accessories/Knowles-acoustic-dampers-screens-BF-Series.html

 

hey thanks FarCry

i understood that bit... 

the kinda questions i've are like

 

1. How Dampers work?

2. why their unit is Ohms??.. yeah seriously

3. what kind of change different dampers make to a particular FR..

 

i tried googling them

it tends to take me everywhere

 

 

post #63 of 69
Quote:
Originally Posted by xenaxance View Post

 

hey thanks FarCry

i understood that bit... 

the kinda questions i've are like

 

1. How Dampers work?

2. why their unit is Ohms??.. yeah seriously

3. what kind of change different dampers make to a particular FR..

 

i tried googling them

it tends to take me everywhere

 

 

 

 

 

Look at Rin's blog. He has done various tests with dampers and you will see the change in the FR graphs

 

 

http://rinchoi.blogspot.gr/

post #64 of 69
Quote:
Originally Posted by xenaxance View Post

 

hey thanks FarCry

i understood that bit... 

the kinda questions i've are like

 

1. How Dampers work?

2. why their unit is Ohms??.. yeah seriously

3. what kind of change different dampers make to a particular FR..

 

i tried googling them

it tends to take me everywhere

 

 

1. In layman's terms a damper is used to dampen peaks at some certain frequencies when sound travels along the tube in which that damper is placed inside.

2. Physicists need to have a unit to calculate. One approach is to borrow the concept of resistance from an electrical system. Sometime you may come across mechanical units as well, in fact they are often  used interchangeably when referring to an acoustical system.

3. Similar thing happens as when you increase the resistance/impedance of the signal path, for instance in an amp circuit.

 

Unfortunately the term electro-acoustics is used to refer to many unrelated things these days, I'd recommend searching through books for better results.


Edited by tranhieu - 4/27/13 at 8:59am
post #65 of 69
Quote:
Originally Posted by FarCry View Post

Look at Rin's blog. He has done various tests with dampers and you will see the change in the FR graphs

 

http://rinchoi.blogspot.gr/

 

 

 

Quote:
Originally Posted by tranhieu View Post

1. In layman's terms damper is used to dampen peaks at some certain frequencies when sound travels along the tube in which damper is placed inside.

2. Physicists need to have a unit to calculate. One approach is to borrow the concept of resistance from electrical system. Sometime you may come across mechanical units as well, in fact they are often  used interchangeably when referring to an acoustical system.

3. Similar thing happens as when you increase the resistance/impedance of the signal path for instance in an amp circuit.

 

Unfortunately the term electro-acoustics is used to refer to many unrelated stuff these days, I'd recommend searching through books for better results.

 

 

hey guys thanks...

reading http://rinchoi.blogspot.in/2012/08/the-effect-of-acoustic-dampers-on-iems.htmlpopcorn.gif

those curves answer a lot of things

and about the 2nd i thought so...

post #66 of 69

Hi mike, 

 

Great information!

 

 

 I'm doing some testing with the sonion's BA drivers.

 

For my new amplifier's bundle IEM.

 

 

Thanks for good information!

 

post #67 of 69
Hey, I am really thankful to you. For all the links..............
post #68 of 69

Super excited to read Rin's blog, thanks for the link.

 

-sheldon

post #69 of 69

This one is really helpful. Thank you for all the links and explanations

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