Sundown Audio SA-8 V1.5 D2 8" 400W RMS Dual 2-Ohm SA Series Subwoofer Dual 4 Ohm SA Series V.3 SUNDOWN AUDIO SA-8 V.3 D4 SUB 8" 500W DUAL 4-OHM SUBWOOFER LOUD BASS Ported Box Subwoofer The Sundown Audio SA 8 v.3 represents the pinnacle of low distortion ported box 8-inch subwoofer technology. Every piece of the SA-8 v.3 has been custom-tooled with the utmost performance and lowest distortion in mind 3- Sundown Audio 8 inch 500W RMS Dual 4-OhmSeries Subwoofer , Specifications:Resistance (Re): 6., 0 & 3A9; | Resonance Frequency (Fs): 40., 0| Equivalent Volume (Vas): 7., 17 L | Electrical Q Factor (Qes): 0., 392 | Mechanical Q Factor (Qms): 4., 310 | Total Q Factor (Qts): 0., 360 | Force Factor (BL): 22., 06| Moving Mass (incl., Air Load) (Mms): 126., 6 g | Suspension Compliance (Cms): 125 & 3BC;m/N | Sensitivity: 82., 711w / 1m What amp pairs well with sundown 8 inch sub Box Recommendations: Sealed Enclosure Suggestion: Not Recommended | Ported Enclosure Suggestion: 0., 5 - 0., 75 cu., ft., Hz | Displacement: 0., 08 cu., ft., | Depth: 6., 625|Outside Diameter: 8., 375| Cutout: 7., 375 in
