Audio CompetitionFeaturedConfirmed · 1+ sources · updated today
IASCA SPL World Finals + dB Drag Racing World Finals
Going to this one?
Free members get show-prep discount codes at JS Ultimate Sounds and JS Alternators — plus alerts when new shows are added near you.
When
Saturday, October 3, 2026
2:00 PM
About
The biggest SPL weekend on earth: the IASCA SPL World Finals and the 28th dB Drag Racing World Finals under one roof, with ISPLL. The loudest cars in the world settle it in Indy.
Gear for this build
In stock at our partner shops — real prices, shipped from people who run this stuff.
Audio Ace
Audio Ace Jester 12" 3000W RMS D2
3000W RMS 12" dual 2Ω — competition-grade motor for high-output builds.
$549JS Ultimate Sounds
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Audio Ace
Audio Ace Jester 18" 3000W RMS D2
18" dual 2Ω SPL driver — when the lane needs every decibel.
$599JS Ultimate Sounds
Shop →
JS Ultimate Sounds and JS Alternators are run by the ShowUp team — buying there supports the site. Prices as listed at the shop.