Arkansas SPL Rules
General
All metering will be done with the Term Lab pressure sensor.
Competitors will have the choice to have the meter placed in the passenger kick panel area, or placed in a legal position on the dash. If the competitor choices the Legal position we will remove the globe and use the suction cups to stick it to the windshield.
Only one person will be allowed inside the vehicle during the metering process, and they must be on the opposite side of the meter.
Entry fee for regular shows will be $30.00 for non-members and $25.00 for members. Arkansas SPL Finals entry fee will be $45.00 for non-members and $35.00 for members.
Becoming an ARSPL member. To become an Arkansas SPL member all you have to do is come to the competitor table at any event and fill out the membership form. With a $25.00 membership you get discounts on entry fees, a 10% discount to our supporting dealers, an Arkansas SPL shirt, and an Arkansas SPL decal.
Classes and Competing
Now that we have some of the general stuff out of the way lets run through our classes and what to expect at an Arkansas SPL event.
Our classes are based off your stereo's ability to produce decibels. The object is to get the highest score in the class without busting out. For example if you are in the 120-130 class your final score can't be any louder than a 130.00, if you score is 130.1 you will lose due to busting out.
CLASSES:
120-130 DB
130-140 DB
140-150 DB
150-155 DB
Adjustments to classes may be made during the season if needed.
First you should come the registration table and get registered for the event. After that you will need to get you and your car ready for qualifying. Lets say you qualify with a score of 141.5, by this score you are able to run the 140-150 or the 130-140 class. We allow competitors to drop down one class from their qualifying score to help make everything more competitive.
Now that qualifying is over we will make our bracket to start our elimination rounds. We only take the top 8 qualifiers for each class. To make things more competitive we will allow competitors to drop down one class from their highest qualifying score. For example if you have a qualifying score of 147.5 you can choose to run either the 140-150 class or the 130-140 class.
When making our brackets the qualifiers will compete in this order: #1 vs #8 #2 vs #7 #3 vs #6 #4 vs #5
The winner from each run will advance to the next round while the loser will be eliminated from the competition. We will keep going until we have a winner for each class.
Additional Guidelines:
Competitors may not enter the same vehicle in more than one class at an Arkansas SPL event.
Competitors must accompany their vehicle at each event. In other words, a competitor may not send his vehicle to an event with a friend in order to compete while he stays at home.
Each competitor must operate his or her own system during competition. “Switch-hitting” is not permitted.
Busting Out – Exceeding your classes’ maximum score at the end of the run. (Example: A contestant scoring a 130.1 at the end of elimination run in the 120.0 – 130.0 class would result in a score of ZERO.)
Over Rev – Revving the motor in excess of 2000 RPM’s.
High Freq – Playing a bass note in excess of 80 Hz to obtain a maximum average score.
In the case of a tie, the following steps will take place to determine the winner…
First Tie: You do a re-run
Second Tie: Turn off the car and re-run again
Third Tie: Turn the car off and play it sealed on the dash.
Music – Find a song that contains a minimum of 15 seconds of bass. Each sound system is different so don’t hesitate to experiment to find the song that works best for you.
Average SPL – To maximize your score, you need to fully understand how the SPL meter averages your score. The following examples describe this process…
Example 1:
• If in the 1st “second of time” you have a score of 90 dB, your average score is 90 dB.
• If in the 2nd “second of time” you have a score of 100 dB, your average score will be (90+100) / 2 = 95 dB.
• If in the 3rd “second of time” you have a score of 120 dB, your average score will be (90+100+120) / 3 = 103 dB.
• The same process is carried out for each second of measurement in the 15 second judging period to determine your final average score.
Example 2:
• If in the 1st “second of time” you have a score 0 dB, your average score is 0 dB.
• If in the 2nd “second of time” you have a score of 0 dB, your average score will be 0 dB.
• If in the 3rd “second of time” you have a score of 120 dB, your average score will be (0+0+120) / 3 = 40 dB.
• The same process is carried out for each second of measurement in the 15 second judging period to determine your final average score.
As you can see, reaction time is crucial.
Be Prepared – Have your CD ready. Reaction time is very important. You want bass music to begin as soon as the SPL meter starts to measure. Songs with long introductions (and no bass) are not recommended. Music tracks with a strong and continuous bass beat work best
Stay Informed – Once in the lanes, park your car so that you can clearly see the display score board. The information displayed here is critical to controlling your sound system. Remember, you want to maximize your average score WITHOUT busting out of your class (Over Shot). For example: If you are competing in the 120.0 to 130 class, the ideal score would be a 130. This is as loud as you can play your system without exceeding your class maximum.
Grudge Match
A grudge match is a new style of competition that pits two competitors head to head with a set of rules that they have set. That is right the competitors get to choose how they want to compete against each other. For example Brad and Jeff both compete in the 150-155 class but Jeff thinks he can do a better score than Brad can at 30 hertz. If Brad accepts this challenge they will compete against each other at the next event. Another example would be it Brad thinks he can do a louder number than Jeff with a single amplifier and challenges him to competition that requires the use of a single amp instead of 2.
Now that you know what a Grudge Match is lets run through the process on starting one.
First you will need to figure who you want to challenge. Next you will need to figure out what kind of challenge you want to do, remember the sky is the limit. Once you have that down you must issue the challenge in one of two ways, the first is to call them out on our forum (
www.arspl.forumotion.net) or to call them out at a show.
When both competitors have decided on a set of rules they can agree upon, they will need to contact Jeff Sanford and get it setup at the next event. All Grudge Matches will have a custom made cup for the winner and will have to paid for in advance. The cost is $40.00 and that is to cover the cup which will have both competitors names, date, and the challenge (if there is enough room)
Remember to check out our forum
www.arspl.forumotion.net
Subject: 2011 New Classes and Rules 
Fri Feb 25, 2011 11:55 pm
