MCM 55-2421 Vented Enclosure? - diyAudio
Go Back   Home > Forums > Loudspeakers > Subwoofers
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

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
Thread Tools Search this Thread
Old 11th May 2006, 02:36 AM   #1
diyAudio Member
Join Date: Mar 2002
Location: alaska
Default MCM 55-2421 Vented Enclosure?

I'm building a pair of "Cyburg Needles" and remembered that I have an 8"MCM 55-2421 in the closet.
I was thinking of a 1' cube.
Has anyone built this sub in a small enclosure?

Are you happy with it?

What it the lowest it should be tuned?

How long and what size for the port ?

Please make any suggestions or comments.

  Reply With Quote
Old 11th May 2006, 04:23 AM   #2
pjanda1 is offline pjanda1  United States
diyAudio Member
pjanda1's Avatar
Join Date: Jan 2005
Location: Boulder, CO
There are some past threads on this. I built a 1 cu ft enclosure tuned to 30ish hertz with a passive radiator. You likely can't go much larger or the efficiency gets too low. Even at this size you'll have some problems if you need to cross over higher than 60hz. If you're searching, look for some measured T/S parameters. MCM's aren't accurate. These little buggers are tons of fun.

  Reply With Quote
Old 11th May 2006, 05:12 AM   #3
diyAudio Member
Join Date: Mar 2002
Location: alaska
I did look at the other posts and found the correct specs.
I was interested in how it turned out for others and the box and port measurements used. Hoping to copy what has been proven and worked well for others.

I've got to work with what I have, so it will have to be just a vented box.
Size needs to be close to the 1' cube.
Should I still try to tune to 30's?

  Reply With Quote


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
Help me align this 15 in a vented enclosure? mpmarino Multi-Way 8 4th August 2008 06:06 PM
Fb Enclosure tunning Vented webleather Subwoofers 7 28th May 2005 12:27 AM
Vented Enclosure Calculations? mramstedt Multi-Way 3 26th September 2004 05:52 PM
Jordan JX92S TL or vented enclosure? Colin Full Range 7 6th September 2003 05:49 PM

New To Site? Need Help?

All times are GMT. The time now is 07:26 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