Tempest vented EBS subwoofer - Page 3 - 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 20th October 2002, 07:18 PM   #21
diyAudio Member
 
Peter Daniel's Avatar
 
Join Date: Jul 2002
Location: Toronto, Canada
Send a message via AIM to Peter Daniel
Quote:
Originally posted by BrianGT


As goes the wife... I have no wife so there is no problem.

With boxes like that, you might never find a wife.
__________________
www.audiosector.com
“Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC
  Reply With Quote
Old 20th October 2002, 07:21 PM   #22
jleaman is offline jleaman  Belgium
Banned
 
Join Date: Apr 2002
Send a message via AIM to jleaman
ohhhhhhh.. : O )
  Reply With Quote
Old 20th October 2002, 07:23 PM   #23
fcel is offline fcel  United States
diyAudio Member
 
Join Date: Sep 2001
Location: LA County
Default quote: As goes the wife... I have no wife so there is no problem.

You've got a girlfriend. Girlfriend is same as wife ... almost.
  Reply With Quote
Old 20th October 2002, 07:26 PM   #24
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
Quote:
Originally posted by BrianGT
I have more pics on my website:

http://brian.darg.net
2nd time in 2 days i've run into galleries put up with that gallery software. On both of them the page blows out so wide as to be almost useless (another generated bug that Exploder ignores encoraging buggy html). Between each column of pictures is about 10 columns of empty space...

dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote
Old 21st October 2002, 05:34 AM   #25
BrianGT is offline BrianGT  United States
diyAudio Moderator Emeritus
 
BrianGT's Avatar
 
Join Date: Jan 2002
Location: near Atlanta, GA
Send a message via AIM to BrianGT
Default Re: quote: As goes the wife... I have no wife so there is no problem.

Quote:
Originally posted by fcel
You've got a girlfriend. Girlfriend is same as wife ... almost.
Actually... she doesn't really care about the size and appearance, but rather the time that I spend on my projects. It isn't too bad, since she is always busy studying (she is a senior Chemical Engineering major at school here at georgia tech... the hardest major at the school)...

It shouldn't look too bad when it is finished. I am covering the top and sides with 1/4" baltic birch, and the bottom with another 3/4" sheet to make the baffle flush with the driver. I will round the edges, and stain and polyurethane it. I haven't found out a good idea for feet yet. Any suggestions? Also, I can't decide on a stain color. What goes good on Baltic Birch?

--
Brian
  Reply With Quote
Old 21st October 2002, 05:38 PM   #26
chrisb is offline chrisb  Canada
diyAudio Member
 
Join Date: Aug 2002
Location: victoria BC
Default "baltic birch"

That depends on the quality of the top veneer face - and personal taste. Natural or clear coat finishes may not necessarily include UV blockers, and can "suntan" quickly, more so on lighter colored veneers, but even on walnut, mahogany and especially cherry.

"Baltic Birch" is a generic term; to simplify things it's rather like "MDF", in that there is quite a wide range of qualities available, from "shop grade" not much good for anything other than laminating substrate, to premiere "architectural" which is exactly as the name implies (eg Apple Ply at well over $100 per sheet)

Having said that, it's not too difficult to test finishes on a scrap sample. Bear in mind that lower grade veneers may have some wild grain figuring as well as small pin-holes knots and larger patches that appear innocuous UNTIL you put a finish on them.

When all else fails, a sanding sealer or diluted wash coat of lacquer will help even out stain color.

My own finishing regimen:

Natural wood veneers:

Sand to 150G (random orbit)
seal coat
color matched wood filler on splits, knots, etc
hand sand 220G
color if any
minimum 2 finish coats (sand 220G between coats)

For "piano" grade paint finish on plywood or MDF - this can easily take more time than building the boxes (well worth considering contracting the final color coats to an auto-body shop.)

Autobody fine grade Polyester filler to entire surface of plywood, edges and screw holes only on MDF
Sand to 150G (random orbit)
spray color matched primer
hand sand 220G
spray min 2 color coat (auto body grade acrylic, (hand sand 220G - 320G between coats)
spray min 1 clear top coat (rub out with auto body rubbing compounds for sheen to taste)
  Reply With Quote
Old 22nd October 2002, 07:07 PM   #27
BrianGT is offline BrianGT  United States
diyAudio Moderator Emeritus
 
BrianGT's Avatar
 
Join Date: Jan 2002
Location: near Atlanta, GA
Send a message via AIM to BrianGT
Chris,

thanks for the advice on finishing. I am planning on gluing 1/4" birch plywood on the boxes throughout and then staining and polyurethaning them. I have sanding sealer and pre-stain treatment. Should I use either of these?

--
Brian
  Reply With Quote
Old 22nd October 2002, 07:11 PM   #28
BrianGT is offline BrianGT  United States
diyAudio Moderator Emeritus
 
BrianGT's Avatar
 
Join Date: Jan 2002
Location: near Atlanta, GA
Send a message via AIM to BrianGT
Default question on stuffing

I received my stuffing and I also bought some 3M 77 spray adhesive to put it in the boxes. Should I just evenly spread the stuffing around the sides? What is the best way to use stuffing with the box. For my Thor TL speakers, it just sits there, not glued, filling the transmission line. The tempest EBS sub is huge and 64oz of polyfil fills only 1/10 of it. This sub is huge! (it does fit in my civic hatchback.... I am thinking of hooking my car sub amp up to it and see how bass I can get out of my car... (roll the windows down first of course)...

Any suggestions on stuffing the box?

--
Brian
  Reply With Quote
Old 22nd October 2002, 07:31 PM   #29
chrisb is offline chrisb  Canada
diyAudio Member
 
Join Date: Aug 2002
Location: victoria BC
Default Finishing the Birch

Brian - I'll assume the 1/4" birch ply has as superior face veneer to the baltic substrate(which can be porous and less than pretty)

The pre-stain treatment should be adequate to even out color, just double check compatibility with finish coat. I've got access to commercial woodworking and finishing shop, so I tend to use solvent based conditioners. wiping stains and spray post catalyzed NC lacquers, not polyurethanes, or paints if I can avoid it.
  Reply With Quote
Old 22nd October 2002, 07:52 PM   #30
BrianGT is offline BrianGT  United States
diyAudio Moderator Emeritus
 
BrianGT's Avatar
 
Join Date: Jan 2002
Location: near Atlanta, GA
Send a message via AIM to BrianGT
yeah, I went through about 80 sheets of plywood at home depot to find 5 sheets that I like. The face is pretty decent. I expect that they should stain alright.

As for the stuffing, I am planning on just covering the sides all around with it and see how it sounds. It should give me a little over 1" stuffing on the side walls. This should reduce the possibility of a reflection problem, as mentioned earlier in this thread. If I have any problems, I will add more wood inside of it as Dave mentioned. It sounds good now, but I finished kind of late last night and didn't want to wake up my neighbors. I will crank it up today and see how it sounds. I haven't finished the leach superamp for it yet, which should give it 500W into the 4 ohm load it provides.

--
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
Exodus Tempest-X 15" Driver / Subwoofer mp006ltk Swap Meet 1 22nd February 2009 09:46 PM
New CSS SD12 Vented Subwoofer Timn8ter Subwoofers 9 31st January 2007 09:02 PM
Diy amp to power tempest subwoofer postman Chip Amps 7 30th March 2004 04:30 PM
FS: Adire Audio Tempest EBS subwoofer BrianGT Swap Meet 6 21st July 2003 01:15 PM
Tempest subwoofer for sale (Adire alignment) Darren_T Swap Meet 3 3rd April 2003 06:49 PM


New To Site? Need Help?

All times are GMT. The time now is 06:47 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