Hockyeyd214
10+ year member
Krew Kustoms
Hey,
Well after having my Alpine Type X 12 in its 1.3 sealed fiberglass console, I want to get it a tad louder so I am going to try a ported box at either 31 or 32.
Here are the max external dimensions that I can work with. (using 3/4" MDF)
34" width
13.75" height
11.5" depth
thats about 2.3 cubes before displacement, which is about .24ft cubed.
This is going to go in my regular cab in between my captains chairs. I have tried all of the box calculators but just can't seem to get one right with a port because the calculators always seem to want to change a dimension, and I just cant do that. I have built a ton of sealed boxes but only one ported one, which was from the sticky thread of box plans on this site.
Here are the specs for my Alpine Type X 12
• Coil Height (Hvc) : 48.1mm
• Cone Area (Sd) : 529sq. cm
• D.C.Coil Resistance (Re) : 3.6ohm + 3.6ohm
• Electrical Q (Qes) : 0.69
• Equivalent Suspension Stiffness (Vas) : 32 liters(1.1cu.ft.)
• Free Air Resonance (Fs) : 28Hz
• Frequency Response : 23Hz - 200Hz
• Gap Height (Hag) : 10mm
• Impedance (Nominal) : 4ohm + 4ohm
• Linear Excursion (X linear) : 19.1mm
• Maximum Excursion (X peak) : 22mm
• Mechanical Excursion (Peak-to-Peak) : 75mm
• Mechanical Q (Qms) : 8.67
• Sensitivity : 83 dB/W/M
• Total Loudspeaker Q (Qts) : 0.64
Any guys out there want to give me a little help?
-Devin
Well after having my Alpine Type X 12 in its 1.3 sealed fiberglass console, I want to get it a tad louder so I am going to try a ported box at either 31 or 32.
Here are the max external dimensions that I can work with. (using 3/4" MDF)
34" width
13.75" height
11.5" depth
thats about 2.3 cubes before displacement, which is about .24ft cubed.
This is going to go in my regular cab in between my captains chairs. I have tried all of the box calculators but just can't seem to get one right with a port because the calculators always seem to want to change a dimension, and I just cant do that. I have built a ton of sealed boxes but only one ported one, which was from the sticky thread of box plans on this site.
Here are the specs for my Alpine Type X 12
• Coil Height (Hvc) : 48.1mm
• Cone Area (Sd) : 529sq. cm
• D.C.Coil Resistance (Re) : 3.6ohm + 3.6ohm
• Electrical Q (Qes) : 0.69
• Equivalent Suspension Stiffness (Vas) : 32 liters(1.1cu.ft.)
• Free Air Resonance (Fs) : 28Hz
• Frequency Response : 23Hz - 200Hz
• Gap Height (Hag) : 10mm
• Impedance (Nominal) : 4ohm + 4ohm
• Linear Excursion (X linear) : 19.1mm
• Maximum Excursion (X peak) : 22mm
• Mechanical Excursion (Peak-to-Peak) : 75mm
• Mechanical Q (Qms) : 8.67
• Sensitivity : 83 dB/W/M
• Total Loudspeaker Q (Qts) : 0.64
Any guys out there want to give me a little help?
-Devin