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mtx jackhammer 24 inch square vs. btl 18


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Posted

how many have you? I have seen plenty blown mtx couldn't even get their own subs to handle it's rms besides my 12 has probably double the motor force 1/10 the cone weight and probably twice the x-max oh and double the actual rms of jack hammer

im just sayin those that doubt the jackhammer are goin on the nay-sayers... ive seen no real proof that the sub cannot handle its rms... show me proof and ill believe u. until then its just product bashing

-Matt

2005 Dodge Magnum RT
JVC KD-AVX1

2 PPI S580.2

Obsidian Audio ST1 Horn Tweeters

PRV 8MB450s

Audio Legion 3500.1D

2 RE MT 18s

360 ah LiFePO4 Battery
SHCA 2/0

155.2 @ 29 hz



Kicker CVR 15's build
DD 3512e build
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(6) 8s Build
Nightshade 15s Wall Build
Magnum AB XFL 12s Build
Newest Magnum Build

Posted

umm there is a video in this thread where MTX smoked their own subs off of less than rms I think that may be a little proof right there

mcintoshsigz.png

previously known as wenn_du_weinst aka fucking internet coward supreme.  I talk shit on other forums like a little bitch and hope i don't get caught out on the street.  

Posted

hmm, look at the box with the 2 jackhammers in the mtx truck.

1. That box looks horribly small, and it looks like somebody just cut a square hole in the front of the box... because I dont see a port, just that hole.

MTX truck

But who knows maybe I'm missing something.

whats up with the other 4 subs and box thats in it??

Team Deadly Hertz

1997 GMC 1500

Update....

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Posted

umm there is a video in this thread where MTX smoked their own subs off of less than rms I think that may be a little proof right there

i watched the video but no where does it show the rms that is going into the subs at that moment. not proof

-Matt

2005 Dodge Magnum RT
JVC KD-AVX1

2 PPI S580.2

Obsidian Audio ST1 Horn Tweeters

PRV 8MB450s

Audio Legion 3500.1D

2 RE MT 18s

360 ah LiFePO4 Battery
SHCA 2/0

155.2 @ 29 hz



Kicker CVR 15's build
DD 3512e build
Mini T-Line Build
(6) 8s Build
Nightshade 15s Wall Build
Magnum AB XFL 12s Build
Newest Magnum Build

Posted

The Jackhammer is not a bad sub its just not practical for most applications because of size, weight and price. With both the BTL and the jackhammer in the right setups i think the jackhammer>BTL

Head Unit: Pioneer DEH-P4050UB

Subs: 2 Pioneer Premier 12" ts-w3004spls

Sub box: 3.2ft3 tuned to 35hz

Sub Amp: SoundMagus DK 1800

Speaker Amp: Rockford Fosgate 200a4 Bridged to fronts

Front Speakers: DLS MS5A components

2 gauge power & ground

141s19i.jpg

Posted

i watched the video but no where does it show the rms that is going into the subs at that moment. not proof

go look up the truck it tells you what amps they have on it

mcintoshsigz.png

previously known as wenn_du_weinst aka fucking internet coward supreme.  I talk shit on other forums like a little bitch and hope i don't get caught out on the street.  

Posted

I think people are misinformed here or are posting with lack of knowledge.

A couple big time dB Drag competitors have done builds and tests with Jackhammers.

The best results were just over 150 dB with 1 sub in a wall, 4th order band pass in an Astrovan with 10kw.

I have seen 1 sub walled setups with 18s do over 160 dB. (Not BTLs)

The jackhammer is super INefficient, heavy cone, heavy coil, stiff suspension. It is actually a very bad sub for SPL.

Then take a sub like a 12" T3 TSS. Lightweight cone, light coil, suspension designed to move freely.

This sub has a greater potential to get loud over the jackhammer regardless of cone area.

The sub itself is better designed for higher numbers and also there is more room to work with to design a proper enclosure.

Who cares about RMS ratings,

2500w to a 12" TSS = bigger number than 10,000w to a 22" turd.

or any good 12" for that matter.

Ed Lester

ShowtimeSPL Host

Showtime Electronics Video Marketing

My old Build Log
http://www.stevemead...08/#entry511451

http://www.youtube.com/showtimespl



TeamDeadlyHertz-HHREd.png


5 time dB Drag Finalist
Last ride 2007 HHR, current dB 153.5 and bass race 149.4 dB. 153.0 dB on music

New Ride, 2008 HHR SS. Build under way.
Loudest score ever = 171dB
2009 dB Drag Racing, North American Points Champion

Posted

The Jackhammer is not a bad sub its just not practical for most applications because of size, weight and price. With both the BTL and the jackhammer in the right setup i think the jackhammer>BTL

at what? the btl is more than likely going to get louder while the jackhammer will get lower

mcintoshsigz.png

previously known as wenn_du_weinst aka fucking internet coward supreme.  I talk shit on other forums like a little bitch and hope i don't get caught out on the street.  

Posted

I think people are misinformed here or are posting with lack of knowledge.

A couple big time dB Drag competitors have done builds and tests with Jackhammers.

The best results were just over 150 dB with 1 sub in a wall, 4th order band pass in an Astrovan with 10kw.

I have seen 1 sub walled setups with 18s do over 160 dB. (Not BTLs)

The jackhammer is super INefficient, heavy cone, heavy coil, stiff suspension. It is actually a very bad sub for SPL.

Then take a sub like a 12" T3 TSS. Lightweight cone, light coil, suspension designed to move freely.

This sub has a greater potential to get loud over the jackhammer regardless of cone area.

The sub itself is better designed for higher numbers and also there is more room to work with to design a proper enclosure.

Who cares about RMS ratings,

2500w to a 12" TSS = bigger number than 10,000w to a 22" turd.

or any good 12" for that matter.

exactly as I was saying earlier you explained it better though

mcintoshsigz.png

previously known as wenn_du_weinst aka fucking internet coward supreme.  I talk shit on other forums like a little bitch and hope i don't get caught out on the street.  

Posted

exactly as I was saying earlier you explained it better though

I'm sorry what? haha I was distracted by your avatar again, huh? haha.

There used to be a post with a jackhammer build and tests over on Term Pro, but I dont feel like going to search for it.

Ed Lester

ShowtimeSPL Host

Showtime Electronics Video Marketing

My old Build Log
http://www.stevemead...08/#entry511451

http://www.youtube.com/showtimespl



TeamDeadlyHertz-HHREd.png


5 time dB Drag Finalist
Last ride 2007 HHR, current dB 153.5 and bass race 149.4 dB. 153.0 dB on music

New Ride, 2008 HHR SS. Build under way.
Loudest score ever = 171dB
2009 dB Drag Racing, North American Points Champion

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