Sleeklsc 5,000+ posts
CarAudio.com Veteran
I can't figure this out. Why did some of the G series Boston subwoofers have a gray dust cap while others had a black one? I tried to figure out if it was a generational change or if the difference was rather it was a d4 or s4 but can't figure it out. Past reviews for both versions don't hint at any clues as to when the change was made.