Sealed TC Sounds LMS Ultra 5400 18" NOOB STYLE!! - Page 7 - Home Theater Forum and Systems - HomeTheaterShack.com
 2Likes
Reply
 
Thread Tools
post #61 of 446 Old 05-09-12, 07:45 PM
Elite Shackster
 
ISLAND1000's Avatar
PHIL
 
Join Date: May 2007
Location: SHERMAN, TX
Posts: 1,001
Re: Sealed TC Sounds LMS Ultra 5400 18" NOOB STYLE!!

You found the sensitivity switch. That took care of your volume differential between the mains and the sub.
YES! BE CAREFUL applying full power from the CE 4000 to the LMS Ultra in free air! At least until the driver has been broken in.
Did you feel heat at the voice coil or where? If there's heat anywhere else be careful during the breakin. If the voice coil is rubbing anywhere that may produce some unusual heat into the aluminum cone.
Proceed with caution when playing with the almost $1000.00 driver best in the world!
ISLAND1000 is offline  
Sponsored Links
Advertisement
 
post #62 of 446 Old 05-09-12, 07:52 PM Thread Starter
Senior Shackster
 
Join Date: Apr 2012
Location: Springdale arkansas
Posts: 166
My System
Re: Sealed TC Sounds LMS Ultra 5400 18" NOOB STYLE!!

Quote:
ISLAND1000 wrote: View Post
You found the sensitivity switch. That took care of your volume differential between the mains and the sub.
YES! BE CAREFUL applying full power from the CE 4000 to the LMS Ultra in free air! At least until the driver has been broken in.
Did you feel heat at the voice coil or where? If there's heat anywhere else be careful during the breakin. If the voice coil is rubbing anywhere that may produce some unusual heat into the aluminum cone.
Proceed with caution when playing with the almost $1000.00 driver best in the world!
I was next to it looking at the guts of it when i noticed some heat. so i shut it off and touched the cone. it was pretty warm but not hot, it didn't run for very long at all, so hopefully i didn't screw it up
brandon123 is offline  
post #63 of 446 Old 05-09-12, 08:27 PM Thread Starter
Senior Shackster
 
Join Date: Apr 2012
Location: Springdale arkansas
Posts: 166
My System
Re: Sealed TC Sounds LMS Ultra 5400 18" NOOB STYLE!!

after it cooled off completely, i lightly pushed the cone in and out too see if i could feel friction or hear any odd noises. Nothing. So turned it back on but a low volume and ran it for a minute. Not even warm. Looks fine to me. But no more playing until its in the box!!! Had it burned up, that would have put a slight damper on this project
brandon123 is offline  
 
post #64 of 446 Old 05-09-12, 09:53 PM
Senior Shackster
Joe
 
Join Date: Nov 2009
Location: Grand Junction, CO
Posts: 114
Nice find on the sensitivity switch. I was going to suggest that as I was reading along since I have the same amp. The box is looking really good too! Keep it up!


To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.
musikpirate is offline  
post #65 of 446 Old 05-09-12, 10:10 PM
Elite Shackster
Mike
 
Join Date: Nov 2007
Location: San Dimas, CA
Posts: 1,633
My System
Re: Sealed TC Sounds LMS Ultra 5400 18" NOOB STYLE!!

Coolio! I didn't know the CE4000 had a sensitivity switch, nice!

Phil's right, be careful running the LMS free air.
sub_crazy is offline  
post #66 of 446 Old 05-09-12, 11:31 PM Thread Starter
Senior Shackster
 
Join Date: Apr 2012
Location: Springdale arkansas
Posts: 166
My System
Re: Sealed TC Sounds LMS Ultra 5400 18" NOOB STYLE!!

Quote:
musikpirate wrote: View Post
Nice find on the sensitivity switch. I was going to suggest that as I was reading along since I have the same amp. The box is looking really good too! Keep it up!
Thanks man! If yours is for a subwoofer also, Could you tell me what you have your other settings on?

Quote:
sub_crazy wrote: View Post
Coolio! I didn't know the CE4000 had a sensitivity switch, nice!

Phil's right, be careful running the LMS free air.
Trust me, i am done with the free air, lol.
brandon123 is offline  
post #67 of 446 Old 05-09-12, 11:46 PM Thread Starter
Senior Shackster
 
Join Date: Apr 2012
Location: Springdale arkansas
Posts: 166
My System
Re: Sealed TC Sounds LMS Ultra 5400 18" NOOB STYLE!!

Besides trying to make sure my amp and sub worked, i aligned my sub in the baffle and pre drilled my holes with a 3/32 bit. I also went to Lowe's and got some more wood screws and some PL premium. I decided to go with the pl premium for adding the birch because after i sand that one side down i doubt it will be flush and this is suppose to be better for filling gaps if i remember correctly. I plan on painting this a glossy black. If anyone knows a good thread or site for how to paint, please let me know.
brandon123 is offline  
post #68 of 446 Old 05-10-12, 12:50 AM
Elite Shackster
 
ISLAND1000's Avatar
PHIL
 
Join Date: May 2007
Location: SHERMAN, TX
Posts: 1,001
Re: Sealed TC Sounds LMS Ultra 5400 18" NOOB STYLE!!

Quote:
brandon123 wrote: View Post

Trust me, i am done with the free air, lol.
`
Actually breaking in the Ultra in free-air is an excellent way to do it. However, it has to be done with a certain amount of engineering skill and technique. NO limiting out the X-MECH, vary the frequency from lowest to highest that it'll see during normal use, make sure the driver is operating in a safe environment away from curious children or other jealous DIYers. Put it on a stable platform the floor is good. Try not to annoy your significant other by playing warble tones of 20-40HZ at night while they're trynna sleep!
How long should breakin take??? I've seen some suggest a week of continuous 24-7, light, low Hz, tones. Others suggest a couple minutes only enough to make sure all the moving parts operate as intended. My own experience is kinda in the middle, a couple hours of varied test tones at partial volume checking frequently to see that the driver is performing as designed. I haven't experienced a point where a driver (all of a sudden) reaches some magical point of "freedom of movement", although I have measured changes over time of the T/S parameters. My experience now includes 2 21" RCF drivers. LOL from 1/2 inch tweeters to 21" subwoofers.
The LMS Ultra is a heavy piece of audio machinery, with moving parts and wiring a 100 times as robust as the lightest tweeters. Care for it like you would the engine of the Titanic don't play it like a . . . . . flute and blow the hell out of it.
ISLAND1000 is offline  
post #69 of 446 Old 05-10-12, 01:20 PM Thread Starter
Senior Shackster
 
Join Date: Apr 2012
Location: Springdale arkansas
Posts: 166
My System
It will probably take some time to break in. I don't listen to music much. I am hoping this will out perform my paradigm seismic 12.

I get off early today and then am off the next 3 days. I hope to have it painted
brandon123 is offline  
post #70 of 446 Old 05-10-12, 01:50 PM
Elite Shackster
 
ISLAND1000's Avatar
PHIL
 
Join Date: May 2007
Location: SHERMAN, TX
Posts: 1,001
Re: Sealed TC Sounds LMS Ultra 5400 18" NOOB STYLE!!

Quote:
brandon123 wrote: View Post
I am hoping this will out perform my paradigm seismic 12.
`
LOL I'm sure it will. You've done a great job building the sealed enclosure, you've purchased a well known SUB woofer amplifier with enough power to energize a 16X 25 room to the point of distressing doors, walls, light fixtures, windows, patio doors, etc. and you've got the best 18" driver in the LMS ULTRA.
You are soon to appreciate what many DIYers have experienced in the ultimate subwoofer box/driver combo.
If it doesn't, I'll buy all of it from you.
ISLAND1000 is offline  
Reply

Bookmarks

Tags
240 volt , birch , crown ce 4000 , diy , lms-5400 ultra , mdf , sealed

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