The Z2040 by tiptopaudio is the latest entry out of four different filters from small american manufacturers. After the Bubblesound SEM20 there has been the two first releases for the system called Borgfilter and Boogiefilter by Malekkoheavyindustries. After the first review on Navs modular Lab the Z2040 will be still tuned a bit that finally it could make the race. Please feel free to compare them yourself and visit us or just buy them all 🙂 !