Surge XT's scene high-pass filter at the end of the voice chain removes DC and unwanted low end per scene

Each Surge XT scene has a dedicated highpass filter after the filter block and amplifier stage but before the scene output. The HP slider controls its cutoff frequency; the filter defaults to disabled and must be enabled from the right-click menu. Slope options are 12, 24, 36, or 48 dB/octave. This post-chain highpass is useful for removing DC offset or sub-bass buildup from complex patches (especially those using feedback, waveshaping, or physical modeling), and it is independent of Filter 1/Filter 2, meaning it can clean up low end without affecting the main timbral filter design.

Examples

Enable HP at 30 Hz with 24 dB/oct on a bass patch using heavy waveshaping feedback to prevent sub-30 Hz DC content from causing speaker overload.

Assessment

At what stage in the signal chain does the Scene Highpass Filter apply relative to Filter 1, the Waveshaper, and the AEG? Why might you enable it on a feedback-heavy patch?