05-10-2024, 05:46 PM
SUCCESS! I'm happy to report with @Power6 walking me through it, we used Orbit to flash an Harman Kardan AUD (amplifier) to change it's channel/speaker output from 60 series to 90 series.
Both the 60 series and 90 series HK AUD's I was looking at had the same PN and HW numbers. Then with further digging with Orbit, we discovered they had the same software--with only the local parameters file being different. We then flashed the proper 90 series local parameters software to the AUD, leaving everything else the same and the AUD accepted the change.
I will confirm this weekend when I finish the wiring project. But immediately after the flash, my rear door woofers stopped playing full range sound (highs, mids, and lows) and switched to lows only. Which makes sense the 90 series have a dedicated channel for mid/highs on the rear doors, whereas 60 series send a full range signal to the rear door's woofer and tweeter wired in parallel.
Both the 60 series and 90 series HK AUD's I was looking at had the same PN and HW numbers. Then with further digging with Orbit, we discovered they had the same software--with only the local parameters file being different. We then flashed the proper 90 series local parameters software to the AUD, leaving everything else the same and the AUD accepted the change.
I will confirm this weekend when I finish the wiring project. But immediately after the flash, my rear door woofers stopped playing full range sound (highs, mids, and lows) and switched to lows only. Which makes sense the 90 series have a dedicated channel for mid/highs on the rear doors, whereas 60 series send a full range signal to the rear door's woofer and tweeter wired in parallel.