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10 inch ports

Dimensions of 10inch port

A pair of these are now being used in England for SPL competitions.
The owner used these ports to achieve 156.7dB, making him the current UK record holder in the Street B category

Here's a little background information on the rig he used to get the record

OrganisationDB drag racing
CategoryStreet B ie. 2 12" subwoofers , 1 battery and two amplifiers
BatteryCactus Sounds 9000
SubwoofersDigital Design 9512 , dual 1 ohm voice coils
SounddampeningDynamat extreme on the floors (double layer) , 4mm fibre flex on the side panels insides and some expanding foam in hard to reach voids.
Power cables10 runs of power and ground using 0 gauge cable
AmplifiersDigital design Z1A's running at 0.5 ohm and at the time of testing they were pushing out 7000rms clean power.
Enclosure18mm thick plywood box with internal volume being 2.4ft^3. tuned to 72hertz, which is also the car's resonant frequency
PortsSingle 10 inch port with 40mm radius flares

 

In addition to two sent to the UK, a pair has gone to the USA, one has gone to Canada, and two pairs locally to Australia

 

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