← All Calculators
Port / Vent Length
Given a target tuning and box volume, returns the port length needed.
Inputs
ft³
Hz
in
Results
Fill in the inputs and tap Calculate to see results.
From the Catalog
Real products with verified specs. Tap one for the full data sheet.
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
Shop →
Audio Ace
Audio Ace Jester 18" 3000W RMS D2
18" dual 2Ω SPL driver — when the lane needs every decibel.
$599JS Ultimate Sounds
Shop →
Audio Ace
Audio Ace Wild 12" 2000W RMS D4
2000W RMS 12" dual 4Ω — daily-driver muscle without the SPL price.
$379JS Ultimate Sounds
Shop →
Audio Ace
Audio Ace Joker 15" v4 1000W RMS
1000W RMS 15" — big cone area on a first-build budget.
$279JS 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.