Download the firmware file named VSX934_Boot_Update_R140-1222-2200-0014.zip (or newer).
A: Partially. The pop when switching from PCM to Dolby Digital is reduced by 70%, but a slight relay click remains. That is hardware-based relay engineering, not a software bug. pioneer vsx934 firmware update fixed
: Better stability for connected USB storage and iPod devices. 4K HDR Fixes pioneer vsx934 firmware update fixed