Upgrading 12" Subwoofers - Audiopipe TSPP312D4 to NeoDynamic Skandal SKL12D2 - [Decibels / SPL]

Swapped out my Audiopipe Audiopipe TSPP312D4 for some Made in Panama, NeoDynamic Skandal SKL12D2's. With SPL Test View my portables, car audio, arcade game restorations, pinball machine restorations, projectors, creations, projects and more at https://www.hailrazer.com #bass #subwoofers #skaraudio #spl #Panama #caraudio #amplifier #Kicker #RockfordFosgate #Sundown