[Mike P.]

re: Maelstrom 21" With 6 1800 Gram 15" Passive Radiators

1.25" MDF, it's gonna be a monster! With 2 A.E. 18" passive radiators on each side this is going to be a first as far as I know. Looking forward to this build.

 

[Mike P.]

re: Maelstrom 21" With 4 - 2100 Gram 18" Passive Radiators

It looks higher than it is wide. Did you change the original 23" x 23" x 60"?

 

[Mike P.]

re: Maelstrom 21" With 4 - 2100 Gram 18" Passive Radiators

We're spot on 23" square!

It must be the resolution on my monitor that's making it look taller.

 

[Mike P.]

re: Maelstrom 21" With 4 - 2100 Gram 18" Passive Radiators

should I just fill in the extra 3 cu. ft.

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I'd leave the box at 13 cu.ft.The tuning will drop to 15.5 hz and you'll get a bit more low end extension.

 

[Mike P.]

re: Maelstrom 21" With 4 - 2100 Gram 18" Passive Radiators

Since the 21" PR's won't work with your cabinet, there are a couple of 18" PR options from A.E. which I know you like.

Yellow is with four 18" 2100 PR's. Tuning frequency is 16.8 hz. 2000 watts input with a HPF at 15 hz.

Pink is with four 18" 1600 PR's. Tuning frequecy is 19.2 hz. 2000 watts input with a HPF at 15 hz.

PR excursion does not exceed 20 mm in both models. These are ballpark estimates as WinISD doesn't take into account power compression.

 

[Mike P.]

with room gain should make this a very acceptable build.

Now there's the understatement of the year!

 

[Mike P.]

Looking good Mike! :T

 

[Mike P.]

Any pics of the sub in house?

 

[Mike P.]

Looks good, the sub blends in nicely with the mains. I can imagine the output after the sub and PR's loosen up a bit. It should be an experience! :hsd:

 

[Mike P.]

Cason II, and underneath that, Ultimate 1.1