TC Sounds LMS5400 18" VS Dayton Audio RSS460HO-4 18" Reference - Page 7 - AVS Forum
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post #181 of 184 Old 11-11-2013, 03:08 PM
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Originally Posted by laeriq View Post

Not to rain on the parade, but I'm pretty sure that TC Sounds doesn't recommend upfiring or downfiring configurations for the LMS. Not saying it won't work, but that's a lot of magnet on top of the cone.

Hmm. I've never heard that before. The LMS-Ultra is certainly capable of either up or downfiring applications with no issues.

Maybe what you are thinking of is TC's VMP passive radiators? You are definitely not supposed to use those up or down firing.

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post #182 of 184 Old 11-11-2013, 03:52 PM
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Originally Posted by Scott Simonian View Post

Hmm. I've never heard that before. The LMS-Ultra is certainly capable of either up or downfiring applications with no issues.

Maybe what you are thinking of is TC's VMP passive radiators? You are definitely not supposed to use those up or down firing.

From the manual, bolding my own-

Not Covered By Warranty:
• Misuse or over excursion
• Thermal abuse to the voice coil or glues around the voice coil
• Thermal abuse to the lead wires on the spiders
• Mechanical damage due to over excursion or excessive acceleration
• Dents in the cone from bottoming out the driver or inadvertent force
Spider sag due to gravity in a down or up firing position for long periods of time
• Damage due to moisture
• Shipping damages
• Cosmetic damage
• Consequential damage on other components

Not saying what dgage is doing is right or wrong, just pointing out that TC Sounds won't cover issues with that application under warranty. Still should be a great project, just making sure he was aware of that info. Not everyone reads the manuals tongue.gif
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post #183 of 184 Old 11-11-2013, 03:59 PM
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Ah. I see. They are just covering their butts.

It's totally okay to up or down fire the LMS-Ultra. smile.gif

My Dual 18" LLT subs 120dB down to 10hz

 

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post #184 of 184 Old 11-11-2013, 07:21 PM
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Thanks Laeriq. Based on the Parts Express calculator, I think I'll take my chance as long as the LMS 5400 works from the beginning. But it's good information for others to know so they can choose whether to do a down or up firing subwoofer.
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