• TUBEFILTHYWALL is a six bandpass filters, which use vacuum tubes, based on Metasonix RK8 Filterwall.
• TUBEFILTHYWALL is sold individually and as part of Tube Bundle. Each filter is about one octave lower in range than the one to the left : treble on the left, bass on the right.

Each filter may be manually swept with its own separate tuning knob, over approximately one and one-half octaves. Or ALL the filters may be swept together, using either the “MANUAL TUNE” knob, or the CV input, which overrides the knob when a patch cable is inserted. Although it is capable of some conventional swept-filter effects, the TUBEFILTHYWALL is more useful as a complex equalization system or for unique special effects.

Resonance is separately adjustable for each filter. Usually the treble filters will resonate strongly and oscillate under some settings. The bass filters might not.