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Don Ganso

MTX Blue Thunder 12 ((OLD SCHOOL!))

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Friend has one, wants help building a box, general system setup, etc.

Looks like this, but nastier.: (no pics of my own)

8ba4_1.JPG?set_id=7

It's got the little tab terminals and everything. Funky and old. Haven't thrown a DMM on it so no guess at the imp. Single coil.

As many specs as you got. Throw 'em up.

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Fs = 26.3 Hz

Qms = 9.72

Vas = 98.6 liters

Cms = 0.242 mm/N

Mms = 151.5 g

Rms = 2.58 kg/s

Xmax = 9.4 mm

P-Dia = 261.9 mm

Sd = 539 sq.cm

Qes = 0.65

Re = 3.17 ohms

Le = 2.4 mH

Z = 4 ohms

BL = 11.05 Tm

Pe = 250 watts

Qts = 0.61

no = 0.26 %

1-W SPL = 87.2 dB

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BTW, 2 cubes sealed, 1.5 sealed and lightly stuffed with polyfill and you will be able to throw the RMS at it and a little more.

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And it should sound fantastic. Those were really great sounding subs. Not hardly loud by today's standards but great sounds.

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You can go here

Tried, and tried hard. perhaps i failz at the intornetz? I don't know, but my searches were "MTX Blue Thunder 12", "MTX Blue Thunder 12 specs", "Old MTX Blue Thunder 12 specs", and the best of them all: "Old MTX Blue Thunder 12 specs black cone blue writing".

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Fs = 26.3 Hz

Qms = 9.72

Vas = 98.6 liters

Cms = 0.242 mm/N

Mms = 151.5 g

Rms = 2.58 kg/s

Xmax = 9.4 mm

P-Dia = 261.9 mm

Sd = 539 sq.cm

Qes = 0.65

Re = 3.17 ohms

Le = 2.4 mH

Z = 4 ohms

BL = 11.05 Tm

Pe = 250 watts

Qts = 0.61

no = 0.26 %

1-W SPL = 87.2 dB

Thank you!

Now the only rms quote I found was someone claiming it was a "500 watt sub". WTF? I look at this thing and I'd guess 150 or so, but I 'spose you can't judge a book by its cover.

Either way, will be using an equally old MTX 250x for power, so I have a few questions:

NO subsonic filter, ported a bad idea?

You say 2 cubes sealed but don't mention ported or sealed; is this a "recommended for sealed enclosures only" deal making ported a doubly bad idea?

This is for a friend who is looking for output over quality of sound and he's flat broke, so what's the best route to go with this?

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Run it sealed and leave it sealed. About 250 watts is all it will handle. Maybe slightly more, but I doubt it. Short 2" coil.

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Great sounding sub in a sealed inclosure as stated above.

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Sealed and only sealed. Oh, and run it sealed.

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Alright, sealed I shall try, and we shall see how she goes.

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Sealed and only sealed. Oh, and run it sealed.

That QTS, yeah seal it up. :)

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i just got two of the same subs. what are the air space requirements? im gona make two single square boxes

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You didn't read the thread too well did ya? :fing34:

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i just got two of the same subs. what are the air space requirements? im gona make two single square boxes

:WTFBubble: your not serious are you? :ughdunno:

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i didnt post on here to get criticized. Vas = 98.6 liters is this the air space?

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BTW, 2 cubes sealed, 1.5 sealed and lightly stuffed with polyfill and you will be able to throw the RMS at it and a little more.

i didnt post on here to get criticized. Vas = 98.6 liters is this the air space?

First quote is your net volume per driver.

Didn't mean to bust your balls so hard but just needed to point that out. :drink40:

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its all good, its just been a long day, i looked completely over where it said 2 cubic ft.

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Perfect timing on this. Had one of these fall in my lap & was just looking for info in it.

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I came upon one of these myself. I have it in my 05 Neon SE. My question is: should I run it on an older Rockford Fosgate 200w? Or a Boss Audio 850w? I trust Rockford but I don't know much about Boss. Other than the usual with car audio guys, "You get what you pay for." I got most of it dirt cheap because I bought it used. 

 

I'm completely new to car audio. Everything I know, I learned in the last three weeks. I do know, I want my car to sound like I'm at a concert (all genres), and make the ground shake a litt-a-lot-a-bit lol

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I should also add, this is just my starter set. I already have a purchase list for new dual 12" subs, a high quality class D amp, 4g wiring kit, big 3 upgrade, second battery/alt, and revamp of 6.5's, 6x9's and tweets.

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you do realize this thread is from 2010 right? 

Edited by CrazyKenKid
spelling

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