Lots of ladder filters do that when you turn up the resonance, along with the bass dropping out from the sound. It happens on my SE-02, and it also happened on the MFB Synth II I used to have. You can combat it somewhat by increasing the drive/feedback as you turn up the resonance, but it's pretty typical behavior in these types of filters. Also, with a single oscillator there's less (and more static) harmonic content to emphasize at the cutoff point vs 2-3 detuned oscillators that can cause the resonance to warble and move.BONES wrote: ↑Fri Oct 18, 2019 2:25 am If you listen just after 40 seconds, you can hear how Dog-awful ladder filters sound. As the resonance increases, it creates a second, detached timbre above the main sound, instead of an integrated timbre with more harmonics. I assume thats because the bandwidth of the resonance is too narrow, possibly to combat the effect it has on the bottom end. Whatever the reason, it's a shithouse sound compared to what other types of filters can do.
Synths like the Monologue and UNO synth have 12 dB filters with a smoother response that leave more of the high-frequency signal, and distort and scream when you turn up the resonance (the internal gain staging probably also has something to do with that).
Wouldn't say one is better/worse than the other, just different styles of filter. Both have their uses and it's nice that not all synths sound identical.