SDS and Audio Technix (no I did not enter the contest), but I feel MurderMat has the edge at least in perspective of design over Kno Knoise. Kno matter how I look at it, my personal opinion, is it looks generic and though yes it's true most sound deadener after installs are typically hidden from view completely I still think Knu could have put more time into the design element of the product. When I take into account pricing, Kno Knoise also seems to be a lot more pricey, at least compared to the affordability of some their other products which I have bought. Mostly wire. As for wire, I feel the KnuKonceptz Karma Twisted OFC wire and KnuKonceptz Twisted Pair Smoke RCA'S are top dog.