Home Room Acoustics Forum by Rives Audio

Welcome! Need support, you got it. Or share you ideas and experiences.

[ Follow Ups ] [ Post Followup ] Thread: [ Display  All  Email ] [ Room Acoustics Forum by Rives Audio ]
[ Alert Moderator ]

RE: Thanks for the clarification...

How to calculate the 72 degree angle: use Tan36 degrees. Tan 36 degrees = (.5 x distance between tweeters) divided by (distance from plane of speakers to listening position). The value of this is 0.726.

Let's take my case. My ears are roughly 1.99 metres in front of the speaker plane so let's call it 2 metres for simplicity. That means that half the distance between the tweeters will be (0.726 x 2) metres or 1.452 metres. The distance between the tweeters will be twice that or 2.9 metres. In my case it's actually 2.6 metres which puts my angle at a bit over 66 degrees as I said.

Nathan Lloyd's suggestion that "the distance between the speakers (tweeter to tweeter) equal 20% - 30% of the distance between the speakers and listening position" is going to demant a short wall placement. You're talking about a sine of around .1 to.15 which translates to an angle of 11.5 degrees to 17.2 degrees if the distance between speakers and listening position is a straight line drawn from the speaker to the listening position. If you're talking about the distance to the plane of the speakers, then the angles are a little narrower. You aren't going to get a wide soundstage with that sort of placement, in fact you'll get a very narrow one. I think that's one of the most extreme recommendations I've ever seen. Put the speakers much closer together and you may as well go back to mono. You're definitely not going to do his sort of setup in a long wall placement. It's most definitely a short wall placement approach.




David Aiken

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

Follow Ups Full Thread
Follow Ups
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.

[ Top Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2025, Audio Asylum, all rights reserved ]
[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]