Cabinet Building Technique of the Fanatics - diyAudio
Go Back   Home > Forums > Loudspeakers > Subwoofers

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 21st March 2007, 01:21 PM   #1
mikee55 is offline mikee55  United Kingdom
diyAudio Member
 
mikee55's Avatar
 
Join Date: Dec 2005
Location: West Howe
Default Cabinet Building Technique of the Fanatics

Here is the place to post Tips Tricks and a vast array of knowledge about Subwoofer construction.

Please add if you see anything missing.





Mikee55
__________________
If it don't work, I'll fix it in the mix! Or visit http://lsdp.proboards.com/index.cgi
  Reply With Quote
Old 21st March 2007, 01:51 PM   #2
oshifis is offline oshifis  Hungary
diyAudio Member
 
Join Date: Mar 2004
Location: Budapest, Hungary
20 x 20 x 20 inch cube, 2 inch wall (2 layers MDF), 6th order Bandpass with passive radiator.
Attached Images
File Type: jpg sub1.jpg (30.2 KB, 1225 views)
  Reply With Quote
Old 22nd March 2007, 12:40 AM   #3
Account disabled at member's request
 
MJL21193's Avatar
 
Join Date: Mar 2007
Nice idea Mike. I have been reading this forum for a few years now and I have to giggle sometimes at some of the construction advise offered.
I am a licensed journeyman carpenter by trade, so it's fair to say that I am a reliable source.

Tools: I am spoiled, I have everything. With that said, you don't need much to get excellent results. If you lack tools and the skill to use them, keep your project simple.Plan your project carefully. Prepare a cut list - this will be the size of all of the sides, top and bottom of your box. Take the list to your lumberyard (Homedepot, etc.) have them cut the parts. Measure the parts before you leave to make sure they are the right size. The worst is over!
You should have some basic hand tools such as hammer, saw , drill + common size bits, screwdrivers and clamps - big ones, as in big enough to clamp acroos the box. A jigsaw in a must( maybe you could borrow one) and if you want to get fancy, a router. Routers and router bits are expensive though and strictly speaking, you can make it without it.

Screws: Save yourself some grief - don't use drywall screws. They are brittle and the head can break off while driving them. Buy the best screws you can find, usually the ones for screwing down floors are very strong. Use #8 or #10 2 inches long if you are going through 3/4 inch stock into a solid wood corner brace. Don't use too many as they may split or weaken the material you are driving them into. Do not overtighten as they may break, and always drill a pilot hole.

Glue: Glue comes in a bottle, sealant comes in a tube. Modern glue makes a joint that is actually stronger than the surrounding wood. When it comes to wood, and wood products(MDF, plywood, particle board) there are only two types of glue I will use: Yellow carpenter's glue (PVA) for all interior work, and polyurethane glue for exterior or wet applications. Both of these will form the strongest, permanent bold possible. Both of these glues work best when applied liberally to the tight fitting joint and clamped till dry. The excess will squeeze out. If you find that your joints are not tight and you lack the ability to fix it, use of the polyurethane glue will actually bridge the gap, as it foams during the drying time. It can easily fill an eight inch gap( 2 MM).

Just the basics.

Have fun
John
  Reply With Quote
Old 22nd March 2007, 12:49 AM   #4
Dr_EM is offline Dr_EM  United Kingdom
diyAudio Member
 
Dr_EM's Avatar
 
Join Date: Oct 2006
Location: Swindon
This seems a suitable thread to ask in and should be very useful overall . When veneering, would you wrap the veneer around edges or must it never be folded? I'm talking about the iron on veneers such as these:

https://secure.wilmslow-audio.co.uk/...c096ad0a661887

My B&W speakers seem to have it wrapped around but it doesn't look like real wood anyhow.
  Reply With Quote
Old 22nd March 2007, 12:54 AM   #5
diyAudio Member
 
FastEddy's Avatar
 
Join Date: Jun 2006
Location: North Californie
Oh Joy! ... sub box makin' ... Got any pics?

(That glue tip from MJL21193 is a great help. The screws, too)
  Reply With Quote
Old 22nd March 2007, 01:05 AM   #6
Account disabled at member's request
 
MJL21193's Avatar
 
Join Date: Mar 2007
Dr.EM: You should veneer one face at a time. Cut your pieces slightly larger, iron on and then CAREFULLY trim off the excess. Save the face of the box for last. Patience is key.
  Reply With Quote
Old 22nd March 2007, 01:13 AM   #7
diyAudio Member
 
RobWells's Avatar
 
Join Date: Aug 2002
Location: UK
Dr.Em,

My old 602's were wrapped with black ash effect vinyl. Thats probably why it goes round the corners nicely - it's not veneer!

Rob.
  Reply With Quote
Old 22nd March 2007, 01:17 AM   #8
Account disabled at member's request
 
MJL21193's Avatar
 
Join Date: Mar 2007
FastEddy: Here's one. In the heat of battle, I soiled my drivers
Attached Images
File Type: jpg im000758a.jpg (25.2 KB, 1120 views)
  Reply With Quote
Old 22nd March 2007, 01:30 AM   #9
diyAudio Member
 
FastEddy's Avatar
 
Join Date: Jun 2006
Location: North Californie
soiled my drivers ... is that like spottened your briches ??

Carefully, with the shop vac set to lowest, right?

What did you end up stuffing that box with?? Or did it need any?

" ... and were very liberal with internal bracing! ..."

That's the hot tip from GR-Research.com as well = lots of bracing, corners, across the "flat lands" = the broad surface area between the corners. Check out his plans (pdf files on line).
  Reply With Quote
Old 22nd March 2007, 01:30 AM   #10
BWRX is offline BWRX  United States
diyAudio Moderator Emeritus
 
Join Date: Jan 2005
Location: Pennsylvania
I wish I had some pictures of the insides of some cabinets I saw while working at a pro audio company. They only used baltic birch plywood and were very liberal with internal bracing! I've seen some of the cabs with 2 15s take a 10 foot drop onto a stage and the damage was mainly cosmetic.
__________________
Brian
  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
Beginner - Building a bass guitar cabinet richmoore1998 Multi-Way 3 27th December 2008 03:31 PM
thinking about building my first cabinet spc18 Full Range 1 10th July 2007 02:44 AM
Question on building a speaker cabinet GuitarDudeSRV Multi-Way 1 10th June 2007 09:59 PM
Building guitar cabinet- help? otokomae Instruments and Amps 8 20th October 2005 09:41 PM
Best technique to install crossover inside cabinet? BobPM Multi-Way 17 5th September 2005 06:21 PM


New To Site? Need Help?

All times are GMT. The time now is 07:03 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2