Tron Filter
Headrush Wah & Filter

Tron Filter

Inspired by Mu-Tron® III Envelope Filter

Filter inspired by the classic Mu-Tron / analog envelope filters combines:

  • resonant filter
  • dynamic modulation (envelope)
  • vintage/funky character

GENERAL FUNCTION

  • Dynamic filter controlled by signal dynamics (like Env Filter)
  • but with more controls (freq, resonance, depth etc.)

It produces:

  • auto-wah funk
  • synth-like
  • vocal effects

Control Parameters

Base FrequencyHz

Filter starting frequency

  • low → dark sound
  • medium → funk zone
  • high → brilliant

It is the "zero point" from which the movement starts

Resonance%

Emphasizes the filter frequency

  • low → soft
  • medium → natural wah
  • high → very pronounced effect

Fundamental to “quack” funk

Fatness%

Adds body/bass

  • 0% → thin
  • high → full

Useful to avoid sounds that are too thin

Modes
  • 24 dB: Very steep low-pass modern/synth sound
  • 18 dB: balance between soft and defined
  • 12 dB: more natural
  • BP (Band Pass): only one band passes (classic wah effect)
  • HP (High Pass): low cut (thin / funky sound)
Depth%

Modulation intensity

  • low → light movement
  • high → wide sweep

Equivalent of the Range in the Env Filter

Mix%

Dry/wet blend

  • 0%: dry
  • 50%: parallel
  • 100%: full effect
GaindB
  • Output volume

Compensates for variations

Pro Tips

  • high resonance → acidic sound
  • depth high → very evident effect
  • BP mode → more wah
  • HP mode → less body

Perfect funk setup:

  • Mode: BP
  • Resonance: high
  • Depth: medium-high

Add:

  • compressor first → smoother response

Quick Reference

  • Base Frequency: filter base point
  • Resonance: emphasis
  • Fatness: body
  • Modes: filter type
  • Depth: movement intensity
  • Mixes: blend
  • Gain: volume

Setup Examples

Classic funk (Mu-Tron style)

ModeBP
Base FreqMedium
Resonance60–80%
Depth60–80%
Fatness30–50%
Mix100%

Classic “quack” funk

Soft funk

Mode12 dB
Resonance40–60%
Depth40–60%
Fatness40%

More musical

Synth filter (EDM)

Mode24 dB
Resonance80–100%
Depthhigh
Mix100%

Electronic effect

Light effect

Mix40–60%
Depth30–50%

Subtle movement