MTX Blue Thunder Legend 15" Specs Please?

[Hazzard]

I recently acquired a MTX blue thunder 15" sub but I cant locate the specs on it and I would like to build the best size enclosure because I dont have one yet. I read somewhere on this forum that older subs need more cu volume then new subs. The version I purchased is the one with the inverted ridge dustcap, single screened vent in the middle of the magnet, Legend Series.

I am hoping someone can tell me how many watts it can handle and what size box to put it in, I could not find the sub on the MTX website support archive and I know it is probably not the same as the new mtx subs; it does have a year date 97 stamped on the back of the cone. It looks like I finally found the right forum to post this in, here's hoping someone can help me out.

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[thehardknoxlife 10+ year member]

Which one is it? Pic?

This it?

 

[Hazzard]

Yes, that is the one exactly.

 

[thehardknoxlife 10+ year member]

That's either the 3rd or 4th generation of the Blue Thunder. It's the first series of the "Legend" model I do know that, as well as being offered in a 15". Mid 90's, 300 watts RMS, available in 4 ohm and 12 ohm SVC. IIRC performed outstanding in large sealed enclosures (3 cubic ft for a 15). Ported, I wouldn't go over 4 cubic ft. Tune low.

 

[Hazzard]

Thank you the hardknoxlife! I am really looking forward to hearing how it sounds in the sealed enclosure you recommended, do you think stuffing with a little polyfill would hurt? I am going to hook a Hifonics Thor Viii amp to it do you think I would risk blowing the sub with this amp?

 

[thehardknoxlife 10+ year member]

Well, if you're using polyfill, I suggest dropping down to 2.5 cubes(and to compensate for the extra power). IIRC the Thor VIII is a 400 watt amp. Should be fine in that box. That's a pretty good low power old school sub. You'll be surprised by it.

 

[Hazzard]

I posted this question on the DIY mobile audio forum as well and one respondent provided a link to the MTX archive with the actuall specs for the whole blue thunder line; I though I would share in case anyone else is interested:

MTX - BTL154 Specifications

I cant wait to hear how it sounds in a 3 cu ft box.

 

[Mattyboombatty]

I have 6 of the blue thunder legend 15's in two separate enclosures. I would like some more info on them and am looking to sell.