Maelstrom Dominance

[jbandpc]

Is it an error in my modeling or my interpretation of it, or does a 15" Maelstrom blow most everything else away (on paper)?

I modeled a 15" Tempest, Shive, Tumult, AE Speakers AV15, Bully-15, Dayton Titanic MKIII, RE Audio XXX15, in a 5 cubic foot sealed enclosure and the Maelstrom really stands out from the crowd in Extension and Group Delay. (Of course, it is more expensive than many of the others)

Thanks for your input,
Philip

 

[mike.e]

There is no magic sub - just expensive ones and cheap rubbish ones
Are you comparing them fairly?

 

[pinkmouse]

Comparing any drivers with just modelled results with TS data will tell you very little about real world performance.

 

[BassAwdyO]

The Maelstrom performs better than the Tumult....? That wouldnt seem to make sense because the tumult is adire's top of the line driver while maelstrom is the 2nd.... Malelstrom also doesnt have XBL^2 it seems

 

[mike.e]

Comparing any drivers with just modelled results with TS data will tell you very little about real world performance.

It will tell you the small signal performance - where most subwoofers spend most their time,as 115dB SPL always would surely drive you and the neighbours mad.

Im not debating the t/s vs listening issue.

 

[noah katz]

"Is it an error in my modeling or my interpretation of it, or does a 15" Maelstrom blow most everything else away (on paper)?"

What do you mean by "blows away"?

Unless it's higher max SPL due to xmax, I'd guess you made an error.

I've modeled dozens of drivers with T-S parameters all over the map in search of the most deep bass, and despite widely differing Fs, Vas, Qts, Mms, Cms, etc., and what I learned is that Hoffman's Iron Law holds sway - for the same power and box size, all the drivers converge to within a few dB of each other.

The "exception" is that you can get a lot more output from the same power and box size with a vented/PR design.