Tube filter with characteristic fat, warm and distorted tube filter sound. Lowpass, bandpass and highpass modes are available. Output 1 is switchable between lowpass and bandpass modes, output 2 is always in highpass mode. The Out1/2 control mixes between LPF/BPF and HPF. It also has negative analog feedback, that can make it sound thinner.
Please see the LD3, Tiny LD, Anamono X, Xmini user manuals on details how to install this.
After installation, you must set it up in the menu's, in order to make it work properly.
On Anamono X go to "More..>Common>Filter Settings", and set either filter 1 or 2 to: 7-Tube Filter, depending on in which filter slot you installed it.
On LD3, Tiny LD, Xmini go to "Edit>More...>VCF Type", and set the filter to: 7-Tube Filter.
Parameters:
Cut: Filter cutoff frequency.
Reso: Filter resonance.
Cut3/Feed: Negative feedback.
Out1: BPF or LPF select.
Out2: Always HPF.
Out1/2: Mix between filter output 1 (BPF/LPF) and filter output 2 (HPF).