Speakerplans.com Homepage
Forum Home Forum Home > General > Newbie Discussion
  New Posts New Posts RSS Feed - Vent too long for enclosure
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Vent too long for enclosure

 Post Reply Post Reply Page  <123>
Author
Message
smitske96 View Drop Down
Young Croc
Young Croc


Joined: 16 February 2016
Location: The Netherlands
Status: Offline
Points: 720
Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 30 March 2021 at 10:40am
The LF driver will interfere with the MF driver. 
Back to Top
Earplug View Drop Down
Old Croc
Old Croc


Joined: 03 January 2012
Location: Europe
Status: Offline
Points: 6432
Post Options Post Options   Thanks (0) Thanks(0)   Quote Earplug Quote  Post ReplyReply Direct Link To This Post Posted: 30 March 2021 at 10:54am
Yes - the tweeter should be ok, as they are (usually) isolated already, but the MF driver won't. You can use something as simple as a plant pot! Anything that seals it off from the LF waves within the cabinet.


Earplugs Are For Wimps!
Back to Top
ssbb1fire View Drop Down
Registered User
Registered User


Joined: 13 March 2021
Status: Offline
Points: 37
Post Options Post Options   Thanks (0) Thanks(0)   Quote ssbb1fire Quote  Post ReplyReply Direct Link To This Post Posted: 30 March 2021 at 8:28pm
Don't take it personnaly, but as I never heard of such thing, I'd like to know more about it. Can you explain to me why the medium would be influenced by the woofer if they are in the same enclosure ?
Where have you learned that ? A book, youtube, video, forum ? To get some data about it.
Back to Top
APW View Drop Down
Young Croc
Young Croc
Avatar

Joined: 13 November 2012
Location: Kent, UK
Status: Offline
Points: 997
Post Options Post Options   Thanks (0) Thanks(0)   Quote APW Quote  Post ReplyReply Direct Link To This Post Posted: 30 March 2021 at 9:22pm
The pressure generated by the woofer will cause the mid into high excursion.
Back to Top
ssbb1fire View Drop Down
Registered User
Registered User


Joined: 13 March 2021
Status: Offline
Points: 37
Post Options Post Options   Thanks (0) Thanks(0)   Quote ssbb1fire Quote  Post ReplyReply Direct Link To This Post Posted: 30 March 2021 at 9:37pm
I've searched a lot this afternoon about that.
You're right, I have to isolate the medium for the woofer.
Now I have to find how to do that in the most efficient way possible. Do you have any advice ?
Back to Top
infrasound View Drop Down
Old Croc
Old Croc


Joined: 13 May 2011
Location: Brizzle
Status: Offline
Points: 2238
Post Options Post Options   Thanks (0) Thanks(0)   Quote infrasound Quote  Post ReplyReply Direct Link To This Post Posted: 30 March 2021 at 9:57pm
Depends how big it needs to be.. But you can use a pot or pan with epoxy, or use bolts and bracing
Back to Top
Earplug View Drop Down
Old Croc
Old Croc


Joined: 03 January 2012
Location: Europe
Status: Offline
Points: 6432
Post Options Post Options   Thanks (1) Thanks(1)   Quote Earplug Quote  Post ReplyReply Direct Link To This Post Posted: 31 March 2021 at 7:10am
"Now I have to find how to do that in the most efficient way possible. Do you have any advice ?"

It's really quite simple. Something like this:-


Or just use a plant pot!  LOL





Earplugs Are For Wimps!
Back to Top
snowflake View Drop Down
Old Croc
Old Croc


Joined: 29 December 2004
Location: Bristol
Status: Offline
Points: 2664
Post Options Post Options   Thanks (0) Thanks(0)   Quote snowflake Quote  Post ReplyReply Direct Link To This Post Posted: 31 March 2021 at 10:57am
it looks to me like the KH310 uses a sealed-back mid, so it already has its own rear chamber built into the driver

google kh310 disassembly
Back to Top
ssbb1fire View Drop Down
Registered User
Registered User


Joined: 13 March 2021
Status: Offline
Points: 37
Post Options Post Options   Thanks (0) Thanks(0)   Quote ssbb1fire Quote  Post ReplyReply Direct Link To This Post Posted: 31 March 2021 at 1:48pm
Oh my that's a great solution !
I just have to find it in a store wich delivers to France lol, I might pay up to 100$ in fees from the USA...
Back to Top
ssbb1fire View Drop Down
Registered User
Registered User


Joined: 13 March 2021
Status: Offline
Points: 37
Post Options Post Options   Thanks (0) Thanks(0)   Quote ssbb1fire Quote  Post ReplyReply Direct Link To This Post Posted: 31 March 2021 at 9:04pm
Thank you for that reminder about volume, I completely forgot.
Back to Top
DMorison View Drop Down
Young Croc
Young Croc


Joined: 14 March 2007
Location: Aberdeen
Status: Offline
Points: 1437
Post Options Post Options   Thanks (0) Thanks(0)   Quote DMorison Quote  Post ReplyReply Direct Link To This Post Posted: 01 April 2021 at 1:45pm
Originally posted by ssbb1fire ssbb1fire wrote:

I've searched a lot this afternoon about that.
You're right, I have to isolate the medium for the woofer.
Now I have to find how to do that in the most efficient way possible. Do you have any advice ?

If you can't get a dedicated enclosure like Earplug suggested, just build a box within the main speaker box. Loads of examples in DIY projects all over the web, here's a good one to show what I mean: http://www.troelsgravesen.dk/Discovery-3WC-mkII.htm
Back to Top
ssbb1fire View Drop Down
Registered User
Registered User


Joined: 13 March 2021
Status: Offline
Points: 37
Post Options Post Options   Thanks (0) Thanks(0)   Quote ssbb1fire Quote  Post ReplyReply Direct Link To This Post Posted: 01 April 2021 at 2:19pm
I found this but it's for 5" and my driver is 4" so I d'ont know if that's the best choice.
https://www.toutlehautparleur.com/charge-close-0-8l-pour-haut-parleur-13-cm.html
Back to Top
 Post Reply Post Reply Page  <123>
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.03
Copyright ©2001-2019 Web Wiz Ltd.

This page was generated in 0.063 seconds.