Harman Kardon AVR 1700 software update help | Page 2 | AVS Forum
Harman Kardon Citation 300 airplay problems : r/HomeKit
Does anyone know if there's a firmware update for the HK AVR1610? Have it since 2016, haven't found anything on their site. Thanks! : r/hometheater
How To Update Your harman/kardon AVR (1700) - YouTube
2018 MY Harman Kardon Gen 3.0 Headunit Firmware History Reference | Subaru Outback Forums
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How To Update Your harman/kardon AVR (1700) - YouTube
Unable to update my Harman Kardon Citation 100 speaker. : r/googlehome
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Software Upgrade @ Harman Kardon AVR 365 - YouTube
