Finally I purchased a PolyBrute 6, after years of speculation. So, after updating the firmware to 3.1.1.1875, I noticed the volume was considerably lower than at the factory settings. Another issue is that when pressing a key, a “false” extra voice pops up at each sixth time pressing of a key. This does not occur on all patches, but mainly on pads and key patches, in ‘poly’ mode only. This is of course unacceptable for product such as this. Apart from these bugs, the synth lives up to my expectations, it sounds awesome!
Presume others have experienced similar issues after updating the firmware, appreciating your input.
Update. I have found out the sudden tone at sixth time key pressing has to do with VCO 1, Sync 2>1. Turning this knob clockwise eliminates the bug tone, but nevertheless this is still a problem because every time I switch to a new patch, I have to turn the knob!
Please, Arturia, fix this asap.!