[Mike P.]

It would be more like 8 cu.ft. tuned to 22 hz with a 8 inch diameter port 29 inches long, assuming most the specs are correct. The modeling is shown with 1500 watts input power and a high pass filter at 18 hz.

 

[Mike P.]

I don't remember hearing of them before. It's anyones guess if they are a good value or not. I would like to hear from someone who has used this sub in the past.

 

[Mike P.]

I wouldn't say it's on the same level as the Maelstrom-X. I get nervous when I see specs like "Useable Throw 3.0", no mention of Xmax which is usually stated at 70% of BL.

If you want a proven performer in that price range then take a look at the IXL-18 from Mach 5 Audio.