VW Passat variant 1.9 TDI -96 (no soundproofing, yet.) stock alternator 120A. -Kenwood - KDC-BT6544UY -Stetsom 1K5H wired 0.5ohms -Optima yellow top 75Ah -Stock battery 90Ah -Voltmeter stetsom VT-1 -Box 3.8 cf -6" aero port -Tune 36Hz
Sealed dash, (when tune was 38Hz) 139,5db@35Hz 142,6db@38Hz 144,8db@47Hz 146,0db@50Hz 146,7db@53Hz