All three Osc sound different?!

The Moog Forum Minimoog Forum
1

Tonight I’ll have my 2nd Gig with the voyager, why i wanted to tune osc2 and 3. They still seem to be in tune, but i realized, that all oscillators sound a little different. Especially Osc3 is a lot brighter then osc1 and osc2.

With an analyzer, I can clearly see that the 2nd overtone (sorry, don’t know if “overtone” is the right word for the german “oberton”) of osc3’s triangular wave is a lot louder than the 2nd harmonic of osc2’s and osc1’s triangular wave.

Also the overall volume of osc3 is always a bit quieter than the overall volume of osc1 and osc2.

I’m aware that i’m sitting in front of an analog synthesizer, but I just want to know if this is the normal behavior, or if i have to (or can) maintain osc3 by modding one of the trimpotis inside.

2

All Moog Voyagers that I’ve seen, or heard were the same as yours. Even the Old School model. That’s the way Bob designed the third oscillator I guess. Don’t know exactly why, but it is a fact. Maybe it could be because oscillator 3 can also serve as an lfo ?

3

Interesting. I was wondering if my third oscillator was somehow “out of alignment” because it sounds so different from the other two.

So this is how it’s supposed to be?

4

Yes, on my Voyager, osc 3’s triangle is a bit brighter than osc 2 & 1’s. In the beginning, I was furious, and blamed faulty knob calibration, but then I remembered reading on the forum that osc 3 sounds different because of it’s LFO capabilities.