Speakerplans.com Homepage
Forum Home Forum Home > Plans > Ported Enclosures
  New Posts New Posts RSS Feed - Cone excursion question
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Cone excursion question
 Post Reply Post Reply Page  <12
Author
Message
  Topic Search Topic Search  Topic Options Topic Options
smitske96 View Drop Down
Young Croc
Young Croc


Joined: 16 February 2016
Location: The Netherlands
Status: Offline
Points: 1217 		Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 26 April 2021 at 6:58pm
Originally posted by JulianDA JulianDA wrote:

Did you think about the "elongation" of the Port by placing it on the ground? This can quickly result in a tuning that is a few Hz lower than predicted...I would also advise to only use winISD as a tool to get a rough estimation for portlength. Then build a prototype, measure the impedance and correct the portlength so it reaches your desired tuning. 

This ^^^


My last build had a factor 0,65 difference (+- expected) in regard to the winISD predictions. 
Eventually nothing beats practice.
Back to Top
0krizia View Drop Down
Registered User
Registered User
Avatar

Joined: 15 February 2016
Location: norway
Status: Offline
Points: 79 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 0krizia Quote  Post ReplyReply Direct Link To This Post Posted: 26 April 2021 at 8:59pm
Does this mean that subs should not be stacked on top of each other? If the tuning frequency of a sub can be changed by the ground it is placed on, it should become phase issues when subs are stacked
Back to Top
toastyghost View Drop Down
The 10,000 Points Club
The 10,000 Points Club
Avatar

Joined: 09 January 2007
Location: Manchester
Status: Offline
Points: 10932 		Post Options Post Options   Thanks (0) Thanks(0)   Quote toastyghost Quote  Post ReplyReply Direct Link To This Post Posted: 28 April 2021 at 12:14am
Originally posted by 0krizia 0krizia wrote:

Does this mean that subs should not be stacked on top of each other? If the tuning frequency of a sub can be changed by the ground it is placed on, it should become phase issues when subs are stacked


The short answer is put your subs where you have to. Fly them if you want, it doesn’t change the fact that the listener is very likely to be essentially ground plane.
Back to Top
 Post Reply Post Reply Page  <12

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.08
Copyright ©2001-2026 Web Wiz Ltd.