Models receiving the upgrade include the following: Onkyo TX-RZ50, TX-NR7100, TX-NR6100, TX-NR6050, and TX-NR5100 Integra DRX-5.4, DRX-3.4, DRX-2.4 Pioneer/Elite: VSX-LX505, VSX-LX305, VX-LX105, and ...