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Discussion Starter · #1 · (Edited)
I posted in the DIY sub section and I'm not trying to be one of those persons that post in every section on every board but since my quest focuses on the Tempest, I thought I would re-post here.


Current sub is a MFW-15

room size 15 x 21 x 8 (approx 2500 cu ft) attached to another room

HT/music = 80/20

sub located in back of room-corner loaded presently

Thinking about a Tempest-x2 15" drivin by a plate amp (500w or 1000w) enclosed in a sealed
18 x 18 x 50 box (approx. 7 cu ft)

Is this doable? In your opinion will this outgun the MFW-15?

Dan
 

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Discussion Starter · #3 ·
It won't outgun the MFW-15 in a sealed configuration. It might come close in the upper bass but a ported enclosure picks up a lot of output near tuning that is hard to overcome that without going up a driver size to something like the Maelstrom-18".

All of us are playing by the same rules. Box size, driver swept volume and amplifier power. If you massage those variables, you can always pick-up more output, but it takes making informed choices about those variables.

With a 7 cubic foot enclosure though, there is no reason not to port the Tempest-X2 and I assure you, at that point it will handily beat the MFW-15. If you want to stick to sealed, I'd encourage you to move up to the Maelstrom-18", with something like a Behringer EP-4000 driving it and you will once again, handily smoke the MFW-15. In both cases, you have moved to a more capable driver, larger enclosure and more amplifier power. Those are the rules and none of us get to violate them.

Kevin Haskins
Exodus Audio
Thanks for the insight, Kevin. So, I need to consider perhaps a slotted port design 2" x 10" x 40" or something like that if I'm going to use the Tempest-X2. I'm thinking I should consider making a slight adjustment to the size of enclosure and go with the Maelstrom 18".
 
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