by GlassWolf » Wed Mar 08, 2006 6:55 pm
ok, lower frequencies have longer wavelengths, so it takes longer distances (by literally feet) to mature a full wave as you drop in freq.
Your sub may have a low Fs, and be tuned low as well, so it's peaking at a long wavelength in a horridly small cabin (pickups.. one of the drawbacks)
Try sound deadening the hell out of the floor, to retain more energy inside the cabin, or try going from ported to sealed.
Another drawback to trucks is they tnd to get really bad "trunk bass" where the sound gets a lot louder with the windows cracked or down.
This is best fixed really by finding a way to couple outside air to cabin air by venting to outside in the car cabin somewhere.. like the firewall, or rear wall by the bed, where it won't be seen, and you can filter out the elements from outside.
ok, lower frequencies have longer wavelengths, so it takes longer distances (by literally feet) to mature a full wave as you drop in freq.
Your sub may have a low Fs, and be tuned low as well, so it's peaking at a long wavelength in a horridly small cabin (pickups.. one of the drawbacks)
Try sound deadening the hell out of the floor, to retain more energy inside the cabin, or try going from ported to sealed.
Another drawback to trucks is they tnd to get really bad "trunk bass" where the sound gets a lot louder with the windows cracked or down.
This is best fixed really by finding a way to couple outside air to cabin air by venting to outside in the car cabin somewhere.. like the firewall, or rear wall by the bed, where it won't be seen, and you can filter out the elements from outside.