Car Audio enthusiasts use aero ports for an easy way to install and adjust the length of the port for tuning an subwoofer enclosure. They can be used inside or outside of the enclosure depending on what best fits your application. For Edge Audio 4" port, it has an interior diameter of 4" with a heavy-duty cardboard pipe length of 12”. From here you can adjust the length of the port down by cutting the pipe to your desired length. This product comes with a piece of cardboard pipe.
1. ELIMINATE PORT NOISE, BOOST BASS CLARITY
✦ Flared Design: Proprietary aerodynamic flares reduce air turbulence by 70% vs. standard tubes, eliminating "chuffing" sounds.
✦ Distortion-Free Lows: Experience punchier, deeper bass without unwanted noise pollution.
2. CUSTOM-TUNE YOUR ENCLOSURE IN MINUTES
✦ Adjustable Length: Cut the heavy-duty reinforced cardboard pipe (12" included) to any size for perfect box tuning.
✦ Cut-to-Fit Flexibility: Edge’s AP4 aero port seamlessly integrates with standard 4-inch PVC pipes (readily available at US hardware stores). Customize vent length in minutes for perfect bass tuning.
3. MILITARY-GRADE CONSTRUCTION
✦ 5.8mm Cardboard Core: 2X thicker than competitors (industry avg: 2.5mm) resists box compression
✦ ABS Flare Armor: 3.2mm wall thickness survives 200+ lbs pressure | Humidity-proof
4. PRECISION FIT GUARANTEE
✦ Precision Fit: AP4: 95mm ID / 151mm Cutout
✦ Zero-Gap Seal: Beveled edges lock flush with enclosure walls
