Postby shameer » April 16th, 2008, 9:10 pm
hey guys just received the final copy of the new 2008 rules.........please copy, print and distribute to your fellow competitors.........it would be deeply appreciated......
IdBL - 1
Section 7
IdBL
Rules
THE ULTIMATE SPL CHALLENGE
IdBL - 2
The IASCA dB League (IdBL) is a contest of measurement of the
maximum sound pressure level (SPL) that can be generated from an
automotive sound system. It has no bearing on the perceived sonic
qualities of acoustically accurate music and sound reproduction,
moreover, it is a challenge of scientific proportion.
The IdBL competition format classifies competitors by three main criteria;
first is the amount of square inches of subwoofer cone area, second is by
the level of modifications to the vehicle and third is by the amount of
equipment in the vehicle. Variations of these main factors classify
competitors into 6 different Divisions, 5 of which contain 3 Classes based
on the amount of square inches of subwoofer cone area.
Once classified, competitors compete against all others in their cone area
Class to achieve the highest possible SPL score. The competitor with the
highest score in their Class at the end of the event is the winner of that
Class. Typically, most events allow competitors two chances at achieving
their highest SPL score, giving them the opportunity to better themselves
and have a chance at winning.
[b]You may be asking yourself “Why classify competitors by square
inches of subwoofer cone area?â€
