NZBasshead Posted September 22, 2012 Report Share Posted September 22, 2012 how much port area per foot do i need for 2 18s in a 7.64 ft box looking to be tuned around 35-37 Link to comment Share on other sites More sharing options...
john253a Posted September 22, 2012 Report Share Posted September 22, 2012 noone can answer that, and if you only have 7.6gross, you only have enough volume for 1 18" post the measurements, of you box amp and sub Link to comment Share on other sites More sharing options...
NZBasshead Posted September 22, 2012 Author Report Share Posted September 22, 2012 my amps are soundmagus 4x 3500rms each sub is bridged with 2 @ 7000rms each sub specs are Specifications System Subwoofer Diameter (mm) 460 Peak power handling capacity 5400 watts Nominal power handling capacity 1800 watts Sensitivity 94 dB (2.83V/1m) Frequency response Hz 20 - 200 Hz Impedance 2 x 2 Ohm Cone material Carbon/fibreglass Installation depth 245.0 mm Installation Ø 420.0 mm Hole circle 452.0 mm Included Design cover Thiele/Small parameters Fres 37 Hz Qts 0.6 Qes 0.71 Qms 3.8 Vas 36.7 l Xmax + / - 15.0 Enclosure recommendation Bass reflex 60 litres Tunnel Ø 2x 10 cm Tunnel length 2x 80 cm my enclousure measurements are (the biggest i could go) 20.8 H 39.3 W 19.6 D thanks Link to comment Share on other sites More sharing options...
NZBasshead Posted September 22, 2012 Author Report Share Posted September 22, 2012 since i only have enough volume for one sub will it be louder with just the one? or louder with 2 in the same volume? Link to comment Share on other sites More sharing options...
Joe X Posted September 22, 2012 Report Share Posted September 22, 2012 What vehicle are these going in? Link to comment Share on other sites More sharing options...
NZBasshead Posted September 22, 2012 Author Report Share Posted September 22, 2012 What vehicle are these going in? It's going in a Honda accord 96 us wagon Link to comment Share on other sites More sharing options...
NZBasshead Posted September 22, 2012 Author Report Share Posted September 22, 2012 ATM the subs are firing upwards I can't change it ATM because I had to build it inside the car the port I have ATM seems shitty to me because it doesn't have much area any idea how to make the box I have right now better? Or do u have a better design I could use down the track when I have the money for the supplies thanks? Link to comment Share on other sites More sharing options...
Joe X Posted September 22, 2012 Report Share Posted September 22, 2012 ATM the subs are firing upwards I can't change it ATM because I had to build it inside the car the port I have ATM seems shitty to me because it doesn't have much area any idea how to make the box I have right now better? Or do u have a better design I could use down the track when I have the money for the supplies thanks? Well first take a look at the spec of your subs, incredibly they work in 2.11 cubic feet box using each a couple of 4 inch ports, I am almost sure that are the Blaupunkt VPW460 subs that are 1800W rms each. So a 4.22 cubic (or so) feet NET box around 90 - 100 square inches of port tuned low would be what you are looking for. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.