Thank you for the information. grin Is it required to re-type DSP5500 L/R BEFORE a firmware update? My DSP5500 has 7 segment LCD display. Any way to determine compatible firmware version for this?

Trinnov Altitude 16, 271, DSP7200SE front L/R, DSP7200SE HC center, 556 amp for rear surrounds, Magnetar UDP800 universal disc player, REL Acoustics Subwoofer Carbon Special, ROON Nucleus One,
Direct TV satellite box, Xbox One S, Nintendo Switch, Sony XR 77A80J OLED