[. . . ] [. . . ] AVANT: RAS-107-167SKV-E3 Sound Characteristics (NC Curve) - 19 - AVANT: RAS-107-167SKV-E3 RAS-137SAV-E3 - 20 - AVANT: RAS-107-167SKV-E3 RAS-167SAV-E3 RAS-167SAV-E3 RAS-167SAV-E3 - 21 - [. . . ] [. . . ]