Here are the T/S Parameters for the MKIII
*Power handling: 800 watts RMS/1,100 watts max *VCdia: 2-1/2" *Le: 3.84 mH *Impedance: 4 ohms *Re: 3.68 ohms *Frequency range: 19-500 Hz *Magnet weight: 136oz. *Fs: 19.93 Hz *SPL: 91.7 dB 2.83V/1m *Vas: 7.79 cu. ft. *Qms: 5.89 *Qes: .41 *Qts: .38 *Xmax: 20.5 mm *Dimensions: Overall Diameter: 15-9/16", Cutout Diameter: 14-1/16", Mounting Depth: 8-3/8".
Here are the ones for the SSD
DUAL 1 | DUAL 2
Fs: 25.9 Hz | 25.3 Hz
Re: 0.75 Ohms/coil | 1.5 Ohms/coil
Qms: 4.78 | 4.89
Qes: .65 | ..58
Qts: .57 | .52
Mms: 246g | 258g
Cms: 0.15mm/N | 0.15mm/N
Sd: 810cm^2 | 810cm^2
Vas: 141.3 l | 141.3 l
Spl: 87.6dB 1W/1m | 87.8dB 1W/1m
Bl: 9.3 N/A | 00.0 N/A
Xmax: 21mm
Rms: 800W
Sealed box: N/A cuft
Ported box: 3-4 cuft @ 33Hz
Sub OD: 15.625”
Cut ID: 14.125”
Mounting depth: 8.000”
Displacement: 0.17cuft
The only thing that sticks out to me is the MKIII is 4 ohm. I have used the 10" MKIII and it got low in a small sealed box. I just don't know how it will do ported. I'm at work so I don't have time to crunch all the numbers. I'd like to have the sub ordered so I can have it for my install next week. Any suggestions?