B3 - same note - different drawbar - different volume?

[Tracii]

Hello,

when I'm playing the same notes with different keys through different drawbar settings, it seems to me that there is a tiny but noticeable volume difference, i.e. the lower drawbars are slightly louder that the higher ones. Is that correct or is my mind playing tricks on me?

Example:
Drawbar setting 888000000, playing middle C - this gives me middle C, the C below it and the G above it.
Drawbar setting 008880000, playing the C below middle C - this also gives me middle C, the C below it and the G above it. The sound is the same, but it seems to be a fraction softer in volume than the other combination.

The effect is more pronounced when I play chords instead of single notes.

Best,
Fabian

[mon8169]

in the second drawbar setting, you play 1 octave lower, isn't it? If yes, it has to be the same volume because the tonewheels active are exactly the same.

Ramon

[Tracii]

in the second drawbar setting, you play 1 octave lower, isn't it? If yes, it has to be the same volume because the tonewheels active are exactly the same.

Yes, the notes that sound are the same. However, somehow I feel as if the second drawbar setting sounds a wee (wee wee wee!) bit softer. And it shouldn't.

[WannitBBBad]

Maybe record your test without Leslie effect and look at the wave amplitudes to see if there's a difference.

[analogika]

Various generations of various console models are wired slightly differently.

Or are you hearing differences especially in the lower octave or so? Because that is where the foldback happens: because there are fewer tonewheels than would be necessary to cover all partials across the entire keyboard, the lower tones will repeat across the lower ten notes or so, and the highest partials across the upper octave or so.