Massive Sono Maelstrom planning - Home Theater Forum and Systems - HomeTheaterShack.com

 
Thread Tools
post #1 of 5 Old 09-24-09, 01:00 PM Thread Starter
New Member
Adam C
 
Join Date: Sep 2009
Location: West Bloomfield, MI
Posts: 2
Massive Sono Maelstrom planning

Hi all. I'm new to the Shack but have been hanging around AVS Forum and HT Guide for a long time. I see this site as the best place for DIY Subwoofer help. So anyway, onto the fun.
I just purchased a 6' section of 28" ID Sonotube and 5' of 8" ID Sonotube from a local supplier. I have a home theater with a false screen wall which will hide the finished subwoofer, so size isn't an issue. The ceiling is just over 8 ft. I've been playing in sonosub.exe and WINISDPro to figure out sizes and tunings, but i figured I'd toss it out there to see if anyone had any ideas. I plan to use a Maelstrom - X 18" and a EP2500 for power. My theater is 20' x 12' and currently is using a PE Dayton 150w 12" subwoofer. I plan on this being a big increase. I will get a HPF as well, not sure which one though.

Any ideas? This is for pretty much 98% Movies. The only music would likely be a music DVD or live concert DVD.

Thanks in Advance,
Adam
acmonster is offline  
Sponsored Links
Advertisement
 
post #2 of 5 Old 09-24-09, 01:23 PM
Senior Shackster
 
dradius's Avatar
dradius
 
Join Date: Sep 2008
Location: Louisville
Posts: 203
Re: Massive Sono Maelstrom planning

That should be a very nice upgrade from the Dayton. I built 2 sonos and heard different things from different people. In the end, I did not flare the ports and I also did not double up on the end caps. A year or so later and they still sound great and I have no regrets. Good luck
dradius is offline  
post #3 of 5 Old 09-24-09, 09:03 PM
Elite Shackster
 
Mike P.'s Avatar
Mike
 
Join Date: Apr 2007
Location: Chitek Lake, Sask.
Posts: 19,397
Re: Massive Sono Maelstrom planning

20 cu. ft. tuned to 14.5 hz would be scary. With room gain it would be 122db down to 15 hz. It would definitely be an eye opener compared to the Dayton 150w 12".




We're all in this together!


To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

Mike P. is offline  
 
post #4 of 5 Old 09-24-09, 10:43 PM
Kevin
 
Join Date: Nov 2007
Location: Port Angeles, WA
Posts: 1,026
Re: Massive Sono Maelstrom planning

My standard advice, is to design around the most important things first. For HT performance, that is 18Hz and up.

That is counter to advice you often get on the forums. That is "ok" because everyone has a different take on the situation. My take, is that I'd rather have the port contribution helping where I use it the most. Most content is >30Hz, let alone <20Hz so that is where I focus my design efforts and money. It also tends to keep the cabinet size smaller. A 10 cubic foot Maelstrom tuned to 18Hz is large enough and even though you are hiding it, a smaller cabinet is easier to move around.

The perceived (and measured) output of the higher tuned device will trump the really low tuning frequency and I think most people are stunned by it's extension, and overall HT performance. But it is a personal choice. Pick your poison.

Kevin Haskins
Exodus Audio
Kevin Haskins is offline  
post #5 of 5 Old 09-25-09, 07:16 AM Thread Starter
New Member
Adam C
 
Join Date: Sep 2009
Location: West Bloomfield, MI
Posts: 2
Re: Massive Sono Maelstrom planning

Thanks for the replies! I am going to take these figures and run them through Sonosub and WiniSD and see exactly what i want to do. Just ordered the sub and amp so I should get this project underway soon!
acmonster is offline  
Reply

Bookmarks

Tags
maelstrom , massive , planning , sono

Quick Reply
Message:
Options

Register Now




PLEASE COMPLETE ALL REQUIRED FIELDS BELOW... THANKS!

REQUIRED FIELDS ON THIS PAGE
YOU MUST COMPLETE ALL OF THESE

Username
Password
Confirm Password
Email Address
Confirm Email Address
Random Question
Random Question #2




User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
PLEASE READ BELOW PRIOR TO ENTERING AN EMAIL ADDRESS!

ATTENTION!

YOU MUST ACTIVATE YOUR ACCOUNT!

Activation requires you reply to an email we will send you after you register... if you do not reply to this email, you will not be able to view certain areas of the forum or certain images... nor will you be able download software.

AN INVALID EMAIL ADDRESS WILL CAUSE YOUR ACCOUNT TO BE DELETED!

See our banned email list here: Banned Email List

We DO NOT respond to spamcop, boxtrapper and spamblocker emails... please add @hometheatershack DOT com to your whitelist prior to registering or you will get nowhere on your registration.


Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may 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 is not allowed!
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 


For the best viewing experience please update your browser to Google Chrome