It's going to be a state-variable filter for sure. It's going to be a second order filter for low-pass, high-pass *and* band-pass. The second order low-pass and high-pass are naturally 12db/oct The 6dB/oct band-pass doesn't make sense. The slope of a band-pass filter depends on the Q. If the Q is l...

Alembic reveals on their website: The SF-2 filter circuit is a resistively tuned two-pole universal active filters, which yields 12 dB/Oct ultimate slopes in the high-pass and low-pass modes, and 6 dB/Oct ultimate slopes in the band-pass mode. "resistively tuned" = with a potentiometer &q...

Jarno wrote: ↑12 Oct 2010, 12:52 The SF-2 is actually 2 State Variable Filters. A parametric eq doesn't give you the LP,BP and HP options the SF-2 has.

They're basically the same. Depends on where you take the output. They just put in a switch to control that.