Cheap sub project - 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 25th November 2004, 07:35 AM   #1
diyAudio Member
 
Join Date: Nov 2004
Location: Brantford, ON
Default Cheap sub project

Hi there... I'm totally new to DIY, but I have a subwoofer I got for free at Radio Shack because it was a damaged display model... it seems to be fine, I replaced the crappy feet with spikes, and i need to replace the woofer as there is a scuff mark on it.

The sub is a powered 8" downward firing Merak, which is made by Axiom. I just wanted some advice on an inexpensive driver to replace the existing one with. Links to places I can buy them online would be helpfull.

Keep in mind the whole sub was worth $120 brand new so no sense in putting anything expensive in it at all.

The sub will be mainly used for music but some HT work as well. I'm using PSB Image 2B mains.

Thanks
  Reply With Quote
Old 25th November 2004, 12:32 PM   #2
keyser is offline keyser  Netherlands
diyAudio Member
 
keyser's Avatar
 
Join Date: Oct 2004
Location: The Netherlands
hmmz...
what to say.
i advise you to either repair the driver, or, if that is no possible,get rid of the sub and try something new. Finding a driver that would suit to the box can be very hard. unless ofcourse the original driver is still available and you are willing to pay its price (replacement units are usually more expensive than they have to be).
for about $250 you can make yourself a pretty good sub!
for example: you should be able to buy an Adire Shiva at a little over $100. The shiva doesn't need a big amp persť. Some small submodule for about $100, and then just add the wood and glue!
Sealed would be good, and easiest to build...
  Reply With Quote
Old 25th November 2004, 02:30 PM   #3
Did it Himself
diyAudio Member
 
richie00boy's Avatar
 
Join Date: Nov 2003
Location: Gloucestershire, England, UK
Whilst I can see a valid argument from your side, at the end of the day the sub is only a cheapo one and will probably not have been optimised anyway. So he could just substitute a driver providing he examines a few models and T/S parameters and I'm sure it would work out (relatively) OK.
  Reply With Quote
Old 25th November 2004, 04:03 PM   #4
keyser is offline keyser  Netherlands
diyAudio Member
 
keyser's Avatar
 
Join Date: Oct 2004
Location: The Netherlands
you're right ofcourse richie.
however, i do think The Guardian should think hard if he really wants to do it. What is he expecting the sound would become like? What is he willing to spend for something that will definitely not be musical-sounding bass. And as he sais music is the main purpose of the sub, i suggest he builds something else.
the chance is very small that the sub would improve the musicality of the system.
For movies i think its a different story. bass quality is a bit less important here. Even a small mis-aligned sub can pump some one-note bass into your room, and make explotions more credible...
  Reply With Quote
Old 25th November 2004, 04:16 PM   #5
diyAudio Member
 
Bill Fitzpatrick's Avatar
 
Join Date: Jun 2001
Location: Eugene, OR
If it's downfiring and the woofer has only a scuff mark, why replace it at all?
  Reply With Quote
Old 25th November 2004, 08:50 PM   #6
diyAudio Member
 
Join Date: Nov 2004
Location: Brantford, ON
eventually I might build a better box for it and stuff, at this point money is a little limited...

Only a scuff mark is showing however the sub was demonstrated WITHOUT the feet on meaning it was sitting right on the surround which can't have been good for the driver at all?

Perhaps a driver that would improve the sound a little bit at this point but that would be good to build a better sub around in the future?

Thanks.
  Reply With Quote
Old 26th November 2004, 12:57 AM   #7
keyser is offline keyser  Netherlands
diyAudio Member
 
keyser's Avatar
 
Join Date: Oct 2004
Location: The Netherlands
if the thing still works, keep it. don't change it.
if it doesnt work, save a few bucks and get something nice! like the shiva i mentioned. maybe you could even get some 2nd hand stuff, and build someting out of that, for little money!
Dont keep ****ing around with this one
  Reply With Quote
Old 26th November 2004, 09:01 AM   #8
Did it Himself
diyAudio Member
 
richie00boy's Avatar
 
Join Date: Nov 2003
Location: Gloucestershire, England, UK
I second Keyser's suggestion. If it's working then don't bother trying to fix something that aint broke!

You can't polish a turd, save your money for a better parts for a whole new sub.
  Reply With Quote
Old 29th November 2004, 12:09 AM   #9
diyAudio Member
 
Join Date: Nov 2004
Location: Florida
What about something like this?

http://www.partsexpress.com/pe/showd...number=290-042

http://www.partsexpress.com/pe/showd...number=295-100
  Reply With Quote
Old 29th November 2004, 02:26 PM   #10
jjdche is offline jjdche  United States
diyAudio Member
 
Join Date: Feb 2004
Location: MA
give us some idea of the box/amp specs. Maybe we can suggest something if you just want to give it a try.
  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
My OLD Project....... cheap tube audio project!!! tube-lover Tubes / Valves 4 8th May 2008 10:26 PM
Cheap electrostatic project. bluetomgold Swap Meet 3 8th August 2006 10:01 PM
cheap project in the UK sreten Multi-Way 92 17th June 2006 04:30 PM
Cheap fullrange project arcturus Full Range 34 27th April 2005 07:26 PM
cheap project ideas theChris Parts 0 22nd March 2003 03:36 AM


New To Site? Need Help?

All times are GMT. The time now is 03:15 AM.


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