how to fit a port into a sphere (globe) - diyAudio
Go Back   Home > Forums > Loudspeakers > Multi-Way
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Multi-Way Conventional loudspeakers with crossovers

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 19th June 2017, 05:51 AM   #1
scott68 is offline scott68  United States
diyAudio Member
 
Join Date: Nov 2016
Default how to fit a port into a sphere (globe)

I'm taking a break from my main speaker project and making a lamp speaker out of a 6" acrylic lamp globe using a 3" speaker. The speaker globe fits on a short 6" pvc cyl that houses the electronics. Above the globe is a LED unit.

I could use one of several passive radiators I have but I thought I would try a 1" x 9" port first I need to know if this will work: PVC pipe = Think of a the letter T inside the globe, where the bottom of the T is flared on the edge of the globe and the length inside the globe is 4 inches. At the top of the T, is a coupling with two slightly bent (using heat gun) 2.75 inch bent pvc pipes. Basically, I'm asking if making a T will count in total, the length of about 9 inches.

I could make a 180 degree loop bending the pipe, heating sand inside the pipe to make the bend keep the 1" ID but more work - would it sound that much better?
Or any other suggestions
Thanks
  Reply With Quote
Old 19th June 2017, 06:12 AM   #2
diyAudio Member
 
leadbelly's Avatar
 
Join Date: Dec 2002
Location: Calgary, Alberta
Well, if you have worked out that 1x9 is needed for proper tuning, then no a T of 9" length open on all 3 ends won't work.
Is this enclosure opaque? If so, you can make a 1x9 port out of plumbing and make just about any shape you need with standard fittings.
__________________
The whole problem with the world is that fools and fanatics are always so certain of themselves, and wiser people so full of doubts. Bertrand Russell
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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 code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
300B Globe physical dimensions tomchr Tubes / Valves 3 8th January 2013 07:26 PM
WTB Globe 866's steve516 Swap Meet 0 9th May 2012 09:13 PM
6SN7-GTB Globe (Chinese) Layberinthius Tubes / Valves 6 16th September 2004 01:20 AM
Tianjin 300b globe and meshplate... john Tubes / Valves 0 9th September 2001 07:31 PM


New To Site? Need Help?

All times are GMT. The time now is 03:03 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2
Wiki