Audio Asylum Thread Printer

Get a view of an entire thread on one page

FAQ / News / Events

High Efficiency Speaker Asylum

If they work they could be a revolution ...

85.19.92.6

In Reply to: RE: Horn-cobble your speakers? posted by woober goober on March 13, 2014 at 07:09:45

I have been thinking lately to the interaction between normal domestic listening environment and speakers emission.
I read many comments about how speakers with controlled/limited dispersion are so much easier to place in a domestic room.
Everybody knows how much uncontrolled room reflections are detrimental to parameter like soundstage (i love the 3D effect).
I am not so brave to try them but i am pretty sure that someone braver than me lives out there.
If the outcome will be positive, as i hope, i will buy them immediately
Just think of the savings on room acoustic treatment and amp powers.
They speak of a 3dB increase in sensitivity maybe with same distortion
Not bad indeed. They could be revolutionary ...
Great idea indeed. Bravo !

Kind regards,
bg

Edits: 03/21/14 03/21/14 03/21/14 03/21/14

Follow Ups:

RE: If they work they could be a revolution ... - Bill Fitzmaurice 05:32:09 03/21/14 (4)
That's a mighty big if. This is the result if you put one over a typical eight inch woofer. As bad as this looks, it would be even worse in practice, as this HornResp sim doesn't show the response dip that would be the result of the Allison Effect reflection of the wave off the baffle.

Edits: 03/21/14
- Ouch ... Thanks a lot indeed ! - beppe61 05:39:14 03/21/14 (3)
  Hello and thank you so much
  Impressive ... not in the good way.
  It is a pity anyway.
  Maybe a better way to limit dispersion of woofers is the one depicted ?
  I want a controlled dispersion speaker even if this will limit hugely the sweet spot ... i listen music alone usually.
  And i would like to limit as much as possible room acoustic treatment
  Thanks a lot indeed again for the very valuable advice/help.
  
  Kind regards,
  bg
  
  Edits: 03/21/14
  - RE: Ouch ... Thanks a lot indeed ! - Bill Fitzmaurice 09:14:40 03/21/14 (2)
    > Maybe a better way to limit dispersion of woofers is the one depicted ?
    
    Limiting the dispersion of woofers simply requires a very large horn mouth or baffle, as in 1 wavelength across. Since that's 11 feet at 100Hz and even then just results in half-space radiation it's not a practical endeavor. Cardioid bass arrays work, but they're not all that practical for a home environment.
    - RE: Ouch ... Thanks a lot indeed ! - beppe61 07:27:25 03/27/14 (1)
      Thanks again and i see ... not very practical indeed.
      Not an option for me for sure, as i am already struggling to get some more space for the system at home.
      
      Kind regards,
      bg
      
      Edits: 03/27/14
      - RE: Ouch ... Thanks a lot indeed ! - Bill Fitzmaurice 09:12:26 03/27/14 (0)
        
        In Reply to: RE: Ouch ... Thanks a lot indeed ! posted by beppe61 on March 27, 2014 at 07:27:25
        
        Narrowing the dispersion of low frequencies isn't a worthwhile goal, since you'd end up with something that doesn't exist in live performance or in the recording studio anyway. Cardioid arrays exist for the purpose of reducing environmental bleed through, especially in outdoor concert facilities.

Post a Followup:

FAQ

Post a Message!

Forgot Password?

Moniker (Username):
Password (Optional):
	Remember my Moniker & Password (What's this?) Eat Me
E-Mail (Optional):
Subject:

Message:	(Posts are subject to Content Rules)

Optional Link URL:
Optional Link Title:
Optional Image URL:
Upload Image:
E-mail Replies:	Automagically notify you when someone responds.

To view your new posting or follow-up, click on the RELOAD or REFRESH button on your browser.

This post is made possible by the generous support of people like you and our sponsors: