What is the loudest records holding subwoofer\subwoofers in size.

That is correct.

Not sure about the different sizes, b/c the smaller sizes aren't really encouraged in competition seeing as most sanctioned organizations with classes of one subwoofer... allow a choice.

DD9917z w/ a pair of DD Z2's did that score I believe.

nG

 
Yes Alan Dante hit a 179.3 with a single DD 99z18 and 4 DD Z2 amplifiers. I've heard rumors that his car can produce the same score with only 2 of the new Stetsom 7kw amps.

What's even more amazing is that Alan was able to win the extreme deathmatch at the 2006 dB Drag world finals with his 1 woofer. He was able to defeat the Pioneer truck and Scion, and the JBL van, which all used more amps and subs than Alan.

Alan's car uses the WLV design which is an 8th order bandpass of sorts.

Here is Alan's db drag competitor stat's for the non-believers.

http://www.termpro.com/asp/competitorstats.asp?Competitor_ID=19104&Season=2007&Page=5

 
Yes Alan Dante hit a 179.3 with a single DD 99z18 and 4 DD Z2 amplifiers. I've heard rumors that his car can produce the same score with only 2 of the new Stetsom 7kw amps.
What's even more amazing is that Alan was able to win the extreme deathmatch at the 2006 dB Drag world finals with his 1 woofer. He was able to defeat the Pioneer truck and Scion, and the JBL van, which all used more amps and subs than Alan.

Alan's car uses the WLV design which is an 8th order bandpass of sorts.

Here is Alan's db drag competitor stat's for the non-believers.

http://www.termpro.com/asp/competitorstats.asp?Competitor_ID=19104&Season=2007&Page=5

Wow that is amazing. That must be some kind of incredible engineering on that box for sure...

 
Just out of curiosity, how much power do 2 or 4 DDZ2's output? I'm assuming it is at like 16 volts? Probably ran under .5 ohms? For a very short burp?

Also I'm curious, are any special precautions or modifications necessary to be able to burp single woofers with 20k, 30k+ watts, or can SPL competition subs handle that from factory?

 
This is kind of off-topic, but I was looking at the IA website and noticed that one of the guys that holds some type of record using their products had a setup with 24 IA 40.1s. Unless I am mistaken, that is roughly 100,000 watts. I think it said he did something like 179 or 180db. I'm just trying to get my mind around that kind of number.... how many batteries would one need just to run those amps for a few seconds?

 
I took these pictures when I was bored at the 2006 DBdrag world finals //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

pioneertruck.jpg


That is the inside of the Pioneer truck

dantesback.jpg


Thats the back of Alan Dante's volvo....Alan was a nice guy, we BS'ed for a little while the first day when I was trying to hunt down Steve Miltion of Digital Designs that had my two Z1's...//content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif But anyways, most of his volvo is concrete, its not like he just has some 8th order bandpass sitting in the back of his car or something....you can jump on the roof of the volvo and its solid concrete.

 
Just out of curiosity, how much power do 2 or 4 DDZ2's output? I'm assuming it is at like 16 volts? Probably ran under .5 ohms? For a very short burp?
Also I'm curious, are any special precautions or modifications necessary to be able to burp single woofers with 20k, 30k+ watts, or can SPL competition subs handle that from factory?
The car runs an 18 volt system. With voltage drop the amp is likely to be seeing 16 volts during the burp. A Z2 will do 8000 watts unclipped at 16 volts and a 1 ohm reactive load. So the sub potentially had 32000 watts on it.

As far as your second question goes: that is a little hard to answer. There are a TON of factors that are involved in putting over 20000 watts to a single sub, and keeping the sub from failing. We were running 24000 watts a peice to our T3 TSNS 18's last year in SS 1-2. The subs themselves were stock. The install is the key factor to keeping the subs alive though. Trying to keep the sub from reaching it's mechanical limits with that much power on it is a nightmare. The subs have to stay linear, or coils will smack the top plate. The cone motion must be kept in check, without developing too much cone pressure, or the cone will fold, but if you don't develop enough cone pressure the sub can bottom out or tear the suspension. So to answer your question, yes some of the SPL subs can handle that much power from the factory, IF they are in the right install.

 
This is kind of off-topic, but I was looking at the IA website and noticed that one of the guys that holds some type of record using their products had a setup with 24 IA 40.1s. Unless I am mistaken, that is roughly 100,000 watts. I think it said he did something like 179 or 180db. I'm just trying to get my mind around that kind of number.... how many batteries would one need just to run those amps for a few seconds?
Sounds like you are talking about Scottie Johnson.

He isn't in the 180db range. But he consistantly does high 160s, which is more than competitve in his class.

here is his stats page. There are a few photos.

http://www.termpro.com/asp/competitorstats.asp?Competitor_ID=3192&Season=2007&Page=1

 
This is kind of off-topic, but I was looking at the IA website and noticed that one of the guys that holds some type of record using their products had a setup with 24 IA 40.1s. Unless I am mistaken, that is roughly 100,000 watts. I think it said he did something like 179 or 180db. I'm just trying to get my mind around that kind of number.... how many batteries would one need just to run those amps for a few seconds?
alot. We had 71 batteries in our SS 1-2 setup, running 8 memphis mojo 4kw's. The voltage would still drop from 18 volts down to 16 volts durring a 3 second burp.

 
The car runs an 18 volt system. With voltage drop the amp is likely to be seeing 16 volts during the burp. A Z2 will do 8000 watts unclipped at 16 volts and a 1 ohm reactive load. So the sub potentially had 32000 watts on it.
As far as your second question goes: that is a little hard to answer. There are a TON of factors that are involved in putting over 20000 watts to a single sub, and keeping the sub from failing. We were running 24000 watts a peice to our T3 TSNS 18's last year in SS 1-2. The subs themselves were stock. The install is the key factor to keeping the subs alive though. Trying to keep the sub from reaching it's mechanical limits with that much power on it is a nightmare. The subs have to stay linear, or coils will smack the top plate. The cone motion must be kept in check, without developing too much cone pressure, or the cone will fold, but if you don't develop enough cone pressure the sub can bottom out or tear the suspension. So to answer your question, yes some of the SPL subs can handle that much power from the factory, IF they are in the right install.


very true.

Sending a single driver in excess of 15kw is a task. The eclosure has to be perfect. Even sending a driver more than 5,000 watts can be challenging for someone doing it the first time.

 
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