D76MX      ...The original Infinity Polydome 3" Midrange and diaphragm are no longer available, BUT, we have a perfect replacement midrange D76MX. This replaces the 902-5793 or 902-3075 mid was used in Polydome K, QLS, RS Series, Kappa Series, RS6000, RS6000a, RS6 Kappa, RS7 Kappa, RS8 Kappa, Kappa RS 6, Kappa RS 7, Kappa RS 8, Kappa RS 9, Kappa 6.1, Kappa 7.1, Kappa 6.1i, Kappa 7.1i, RS Kappa 6.1 Series II, Kappa 7.1 Series II, Kappa 8.1 Series II, Kappa 9.1 Series II, Kappa 6.2i, Kappa 7.2i, Kappa 8.2i, Kappa 9.2i,