Thoughts on Behringer Studio Monitors (2030 and others), active and passive - Page 10 - Home Theater Forum and Systems - HomeTheaterShack.com

Reply
 
Thread Tools
post #91 of 187 Old 07-16-10, 11:43 AM Thread Starter
Banned!
 
Join Date: Sep 2006
Posts: 3,807
Re: Thoughts on Behringer Studio Monitors (2030 and others), active and passive

fiberglass vs rockwool, here's the coefficients for anyone interested: http://www.bobgolds.com/AbsorptionCoefficients.htm

Looks like Rockwool is about 1.5x as effective at 125hz at similar densities.

I actually like the idea of polybatting because it is not 100% acoustically transparent, my understanding is that it, on it's own, has very mild absorption properties (also per Bob Gold's in the discussion of "Porous Absorbers" at the bottom of the page.)
eugovector is offline  
Sponsored Links
Advertisement
 
post #92 of 187 Old 07-16-10, 11:47 AM
Elite Shackster
 
lsiberian's Avatar
lsiberian
 
Join Date: Mar 2009
Location: Fort Worth, TX
Posts: 2,625
Re: Thoughts on Behringer Studio Monitors (2030 and others), active and passive

Quote:
eugovector wrote: View Post
fiberglass vs rockwool, here's the coefficients for anyone interested: http://www.bobgolds.com/AbsorptionCoefficients.htm

Looks like Rockwool is about 1.5x as effective at 125hz at similar densities.

I actually like the idea of polybatting because it is not 100% acoustically transparent, my understanding is that it, on it's own, has very mild absorption properties (also per Bob Gold's in the discussion of "Porous Absorbers" at the bottom of the page.)
Just remember we are talking 2" of rockwool so the difference isn't too large. A difference of .15 is required for statistical significance and even a roll of R8 is a huge step up from the lining in their currently. Fiber like 10 bucks a role at home depot. For 10 bucks you could upgrade almost any speakers. That's not a bad deal if you think about it. This mod can be used on any speaker to improve performance.
lsiberian is offline  
post #93 of 187 Old 07-16-10, 11:52 AM Thread Starter
Banned!
 
Join Date: Sep 2006
Posts: 3,807
Re: Thoughts on Behringer Studio Monitors (2030 and others), active and passive

For the roll of R8, would you go thicker than 2", for instance, filling the entire interior cavity of the speaker?
eugovector is offline  
 
post #94 of 187 Old 07-16-10, 03:34 PM
Senior Shackster
Dan
 
Join Date: Oct 2009
Location: Mountain View, CA
Posts: 502
Re: Thoughts on Behringer Studio Monitors (2030 and others), active and passive

Anyone know how this will effect the bass tuning?
DanTheMan is offline  
post #95 of 187 Old 07-16-10, 05:00 PM
Elite Shackster
 
lsiberian's Avatar
lsiberian
 
Join Date: Mar 2009
Location: Fort Worth, TX
Posts: 2,625
Re: Thoughts on Behringer Studio Monitors (2030 and others), active and passive

Quote:
eugovector wrote: View Post
For the roll of R8, would you go thicker than 2", for instance, filling the entire interior cavity of the speaker?
I wouldn't, but Wmax would. He'd also concrete, and metal brace the thing. He does his treatment in such a way the speaker almost becomes an infinite baffle.
lsiberian is offline  
post #96 of 187 Old 07-16-10, 05:01 PM
Elite Shackster
 
lsiberian's Avatar
lsiberian
 
Join Date: Mar 2009
Location: Fort Worth, TX
Posts: 2,625
Re: Thoughts on Behringer Studio Monitors (2030 and others), active and passive

Quote:
DanTheMan wrote: View Post
Anyone know how this will effect the bass tuning?
It depends on what you do and how far you go. Swapping your liner for 2" of wool or fiber would give you more positives than negatives though. It decreases distortion significantly.
lsiberian is offline  
post #97 of 187 Old 07-16-10, 08:48 PM
 
Join Date: Jun 2010
Posts: 48
Re: Thoughts on Behringer Studio Monitors (2030 and others), active and passive

How do these compare against say the Polk audio tsi200 bookshelf speakers? I only ask because I was at bestbuy and the guy was playing them through a pioneer elite receiver on 140w per channel. They had a dts eagles audio cd in and to my virgin home audio ears it sounded ridiculously good in my expierence limited opinion. Can these behringers be wall mounted? If not I guess I will buy wall shelves that install on studs to mount them.
Posted via Mobile Device
ACE23 is offline  
post #98 of 187 Old 07-16-10, 08:55 PM
Senior Shackster
 
Join Date: Feb 2009
Location: Australia
Posts: 171
Re: Thoughts on Behringer Studio Monitors (2030 and others), active and passive

Quote:
DanTheMan wrote: View Post
Anyone know how this will effect the bass tuning?
This is what WmAx has to say:
Quote:
Effect's caused by a 'super' absorber like 4-8# rockwool board. The material has such a high co-efficient, that if you use too much, it will critically dampen the LF response. That is, it will actually cause the LF to roll off radically, and very smoothly, replicating the sort of response one would expect from an infinite volume of air behind the driver. So, use just enough of the material to provide maximum mid-range absorption, but no so much that is actually removes much LF response, unless you have an electronic means of correction (such as a parametric equalizer) available to compensate the response loss.
Mika75 is offline  
post #99 of 187 Old 07-16-10, 10:39 PM
Senior Shackster
Dan
 
Join Date: Oct 2009
Location: Mountain View, CA
Posts: 502
Re: Thoughts on Behringer Studio Monitors (2030 and others), active and passive

Thank you guys. Now I know what to look for.

Dan
DanTheMan is offline  
post #100 of 187 Old 07-17-10, 08:12 AM
Elite Shackster
 
lsiberian's Avatar
lsiberian
 
Join Date: Mar 2009
Location: Fort Worth, TX
Posts: 2,625
Re: Thoughts on Behringer Studio Monitors (2030 and others), active and passive

Quote:
Mika75 wrote: View Post
This is what WmAx has to say:
Yes that is precisely what happens, but 2" to 4" of lining on the back won't critically dampen the speaker.

I'd not add more to a speaker though. Absorbing on the back wall is sufficient IMO for the desired effect. I suggest rockwool since it is easier to handle than fiber glass. It does alter tuning and in ported designs too much treatment kills internal resonance.
lsiberian is offline  
Reply

Bookmarks

Tags
(2030 , active , behringer , monitors , others) , passive , studio , thoughts

Quick Reply
Message:
Options

Register Now




PLEASE COMPLETE ALL REQUIRED FIELDS BELOW... THANKS!

REQUIRED FIELDS ON THIS PAGE
YOU MUST COMPLETE ALL OF THESE

Username
Password
Confirm Password
Email Address
Confirm Email Address
Random Question
Random Question #2




User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
PLEASE READ BELOW PRIOR TO ENTERING AN EMAIL ADDRESS!

ATTENTION!

YOU MUST ACTIVATE YOUR ACCOUNT!

Activation requires you reply to an email we will send you after you register... if you do not reply to this email, you will not be able to view certain areas of the forum or certain images... nor will you be able download software.

AN INVALID EMAIL ADDRESS WILL CAUSE YOUR ACCOUNT TO BE DELETED!

See our banned email list here: Banned Email List

We DO NOT respond to spamcop, boxtrapper and spamblocker emails... please add @hometheatershack DOT com to your whitelist prior to registering or you will get nowhere on your registration.


Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML is not allowed!
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 


For the best viewing experience please update your browser to Google Chrome