Prophet-6 hardware revisions?

[RMVS]

Someone over on reddit is claiming that their 2017 and 2023 Pro-6s sounds "completely" different, i.e., there is more bass and better HPF resonance on the newer version. They suggest this is due to chip changes during production.. This honestly sounds bogus to me since it hasn't been documented anywhere, but it's a strong claim.. anyone noticed any differences/have any further evidence of this?

[Quatschmacher]

Someone over on reddit is claiming that their 2017 and 2023 Pro-6s sounds "completely" different, i.e., there is more bass and better HPF resonance on the newer version. They suggest this is due to chip changes during production.. This honestly sounds bogus to me since it hasn't been documented anywhere, but it's a strong claim.. anyone noticed any differences/have any further evidence of this?

There was a bit of a hardware change. Some older units had issues with the LEDs when running later firmware. Also, at one point fairly recently, there were two firmware versions in circulation, one for current hardware and one for older hardware and users were advised which to use. It’ll be in either the firmware pinned thread or elsewhere here in the forum.

There’s some evidence of it here:
https://forum.sequential.com/index.php/topic,7113.0.html

[RMVS]

Someone over on reddit is claiming that their 2017 and 2023 Pro-6s sounds "completely" different, i.e., there is more bass and better HPF resonance on the newer version. They suggest this is due to chip changes during production.. This honestly sounds bogus to me since it hasn't been documented anywhere, but it's a strong claim.. anyone noticed any differences/have any further evidence of this?

There was a bit of a hardware change. Some older units had issues with the LEDs when running later firmware. Also, at one point fairly recently, there were two firmware versions in circulation, one for current hardware and one for older hardware and users were advised which to use. It’ll be in either the firmware pinned thread or elsewhere here in the forum.

There’s some evidence of it here:
https://forum.sequential.com/index.php/topic,7113.0.html

Thanks, yes I was aware of these small changes but they don't have anything to do with the sound.

[gus]

Someone over on reddit is claiming that their 2017 and 2023 Pro-6s sounds "completely" different, i.e., there is more bass and better HPF resonance on the newer version. They suggest this is due to chip changes during production.. This honestly sounds bogus to me since it hasn't been documented anywhere, but it's a strong claim.. anyone noticed any differences/have any further evidence of this?

Interesting claim  Changes in production happen fairly often, especially with something like the Prophet-6 which has been manufactured for over 8 years. Parts can get EOL'd or might get hard to get, new versions become available, parts get priced out, and so on. With that said, there have been no changes to the core voice of the Prophet-6/OB-6. Slight variation is expected unit to unit given the density of components in the signal path, and on an older unit things like age, component tolerance, or use might have a slight impact as well. They're still built in SF, from serial 1 to... whatever we are at now!

[RMVS]

Someone over on reddit is claiming that their 2017 and 2023 Pro-6s sounds "completely" different, i.e., there is more bass and better HPF resonance on the newer version. They suggest this is due to chip changes during production.. This honestly sounds bogus to me since it hasn't been documented anywhere, but it's a strong claim.. anyone noticed any differences/have any further evidence of this?

Interesting claim  Changes in production happen fairly often, especially with something like the Prophet-6 which has been manufactured for over 8 years. Parts can get EOL'd or might get hard to get, new versions become available, parts get priced out, and so on. With that said, there have been no changes to the core voice of the Prophet-6/OB-6. Slight variation is expected unit to unit given the density of components in the signal path, and on an older unit things like age, component tolerance, or use might have a slight impact as well. They're still built in SF, from serial 1 to... whatever we are at now!

Thanks for clearing that up!

[LPF83]

I have two different studio setups in separate rooms that are configured differently, and I have sometimes found when I move the synths from one setup to another, the difference in sound is dramatic (not better or worse just different), to the point that I can hardly believe its the same synth.  I often wonder how often changes to the environment account for the differences one hears from a given piece of hardware.

I've seen posts from folks on this board that say they hate the tone of the P6, but they like the tone of other synths like P5/10 or OBX-8.  I always wondered if they are hearing something different because the P6 they used as reference had a defect, or some other factor, because their experience seems nothing like I get from my P6.