Filter knob usable range

[circles of proportion]

New to the forum—hi everyone!

I just got a new Pro 3 SE. Overall it's working well, but I did notice one weird issue, and I'm wondering whether it's normal. When I turn the filter knob (in "Jump" mode), the value shown on the screen reaches zero a little to the right of 9 o'clock, and turning it to the left of that has no effect. If I set the pot mode to "Relative," nothing happens when I move the knob within that range. I tried this with nothing connected to USB or MIDI, so it's not a MIDI loop.

This doesn't really affect the functionality of the synth, but it does mean that about 1/5 of the travel range of the knob is useless. Has anyone else encountered this? Is there some way to recalibrate the pot?

[Jonah66]

There is a calibrate option in the settings, not sure if it does what you suggest though. Try this, initialise a patch, you can do this with key combo I never remember or there’s initialise patch in the settings menu. Select saw wave, fully turn the filter between clockwise and anti-clockwise. Also, try the different catch up settings. I’ll try my unit later to see if it mirrors what you reported above but from memory, I don’t think it’s the case.

[circles of proportion]

Thanks your reply! By "catch up settings," do you mean the different "pot modes," like jump and passthru? I did try all three of these, and I still have the same issue with the lower 1/5 of the pot having no effect no matter how it's set.

I ran both of the calibration procedures in the menu, and they didn't help. It seems like I need to do something similar to the wheel calibration procedure, but for the filter pot.

[BT]

Hi there! There are dead bands at the lowest and highest physical ranges of the high-resolution cutoff pot. If, while on the basic program, you can use the pot to drop OTA filter cutoff to 0 and effectively cut off all sound, then your pot is functioning as expected. Apologies for any confusion.

[circles of proportion]

Thanks! It's reassuring to hear that it's normal. It is annoying because the dead band is much wider than I've experienced on other synths and covers a significant portion of the knob's travel. But I am able to close and open the filters fully, so it's not really a functional problem.

It's a great synth overall. Though I do have to resist the temptation to crank up the distortion on everything, ha ha!