Mtx’s Head to Head Competition

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=79326
Printed Date: May 09, 2025 at 6:42 PM

Topic: Mtx’s Head to Head Competition

Posted By: lukeyn
Subject: Mtx’s Head to Head Competition
Date Posted: June 19, 2006 at 12:20 PM

I was recently browsing mtx's website and came upon this..https://www.mtx.com/Flash2/volume_displacement.cfm
They claim this will decide which speaker will play the loudest by multiplying the sub's sd by its XmaX. This just seems fishy to me that their MTX 7500 12 will outplay a Memphis MOJO 12 and the Kicker L7 12. There are other odd outcomes according to this calculation. I was just wondering if anyone had some input on their methods of loudness.

Replies:

Posted By: DYohn
Date Posted: June 19, 2006 at 12:39 PM

Sd times Xmax gives Vd, or "peak diaphragm displacement volume." Higher displacement usually indicates better low-frequency transducer. As far as being "louder," this is only one of many factors that will determine SPL output in a subwoofer system. Highest Vd does not always equal highest SPL.

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Posted By: Steven Kephart
Date Posted: June 19, 2006 at 7:25 PM

Also keep in mind that companies measure Sd and Xmax differently from one another.

Posted By: luckydevil
Date Posted: June 19, 2006 at 8:54 PM

One word... HYPE.

Posted By: aznboi3644
Date Posted: June 19, 2006 at 9:24 PM

Another word...propaganda

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