Home sub with PA driver - 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 9th August 2006, 10:31 PM   #1
Khron is offline Khron  Romania
diyAudio Member
 
Join Date: Jul 2005
Location: Finland
Send a message via AIM to Khron Send a message via MSN to Khron Send a message via Yahoo to Khron
Default Home sub with PA driver

Sometime in the near future, i intend on building myself a subwoofer, mainly for music, and for a movie every once in a while. I've set my eyes on a promising 18" PA woofer (P-Audio IMF-HP18s). The TS parameters can be found in the datasheet here .

I was thinking of putting it in a 80-100 litre box, crossing it over at about 80-85Hz, and using a Linkwitz Transform, to have some useful HT-like extension. According to WinISD, i'd reach 6mm xmax (from the rated 6.6mm) at 30Hz, producing about 105dB@40Hz, with an F3 of ~23Hz.

Would there be any reason why this would not work as expected? (just so i can rest easy that this project is 100% feasible)
  Reply With Quote
Old 9th August 2006, 11:15 PM   #2
diyAudio Member
 
leadbelly's Avatar
 
Join Date: Dec 2002
Location: Calgary, Alberta
It sounds very feasible; you seem to have considered all the important issues in your design.

The only question I have is why do it this way? If you add LT to the sub, you will throw away the efficiency advantage of the PA driver over an HT driver with a low Fs, and therefore will still need a big amp to drive it. If you have a strong reason to want it this way, such as price, availability, or a preference for high efficiency drivers, then by all means, it sounds like a great project
__________________
Aerodynamics are for people who can't build engines. Enzo Ferrari
  Reply With Quote
Old 9th August 2006, 11:36 PM   #3
Khron is offline Khron  Romania
diyAudio Member
 
Join Date: Jul 2005
Location: Finland
Send a message via AIM to Khron Send a message via MSN to Khron Send a message via Yahoo to Khron
One of the main reasons for this choice is down to finances. While a brand-name 12-15" woofer would cost a good few hundred $, i can get this HP18s for just 150$. Not to mention the fact that most good speaker brands are quite rare around here to start with.

Plus, i'd like to keep the box on the small side; this 18" had the most xmax among the available and somewhat affordable woofers, and thus i ended up with the idea of using an LT.

Anyway, thanks for the thumbs up
  Reply With Quote
Old 12th August 2006, 08:11 PM   #4
mikee55 is offline mikee55  United Kingdom
diyAudio Member
 
mikee55's Avatar
 
Join Date: Dec 2005
Location: West Howe
Default I don't think you should use this driver...

...post it to me, and I'll put it to good use.
__________________
If it don't work, I'll fix it in the mix! Or visit http://lsdp.proboards.com/index.cgi
  Reply With Quote
Old 14th August 2006, 07:45 PM   #5
Khron is offline Khron  Romania
diyAudio Member
 
Join Date: Jul 2005
Location: Finland
Send a message via AIM to Khron Send a message via MSN to Khron Send a message via Yahoo to Khron
Hey Mike, drop me an email sometime soon so we can discuss the details
  Reply With Quote
Old 14th August 2006, 09:04 PM   #6
mikee55 is offline mikee55  United Kingdom
diyAudio Member
 
mikee55's Avatar
 
Join Date: Dec 2005
Location: West Howe
Smile Pinging Khron

Just set up msn messenger. Send me your email address or whatever sometime so we can chat. Cheers 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 15th August 2006, 10:21 AM   #7
Khron is offline Khron  Romania
diyAudio Member
 
Join Date: Jul 2005
Location: Finland
Send a message via AIM to Khron Send a message via MSN to Khron Send a message via Yahoo to Khron
khron666@hotmail.com
  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
Home built subwoofer driver flyingtele Subwoofers 13 3rd August 2009 04:28 PM
Driver for home made bass amp punkrokr1701 Multi-Way 2 27th December 2006 04:09 AM
The Best Subwoofer Driver for Home audio Too? cemmany Subwoofers 6 7th July 2006 03:32 AM
Is OmnesAudio driver OK for home theater application? goodspeaker Subwoofers 6 25th May 2006 09:27 AM
Speaker/Driver Brands for Home Audio nrgy Multi-Way 15 17th March 2004 05:45 PM


New To Site? Need Help?

All times are GMT. The time now is 01:08 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