This is 20 minutes of me bouncing back and forth between two Oberheim OB-Xa style eurorack filters, trying to hear the differences between them. If you're not deeply interested in OB-Xa filters, you're probably better off moving along.

Still here? Ok. So, these two filters are close but not identical to the original VCF in the Oberheim OB-Xa. They have some improvements here and there, but for the most part are true to the original sound of the Oberheim. (I don't have an OB-Xa, so whether they're exactly the same or not I have no idea.)

As I go through I'm going to first try and get them as identical as possible, then listen to their less identical aspects.

In both cases I'm sticking to the "standard" model, not the state variable option.

Sorry for the crackles here and there, my interface seems unhappy. They don't get in the way, they're just occasionally irritating.

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