Spring Guru
Headrush Reverb

Spring Guru

Inspired by HeadRush® Original

The Spring Guru is an advanced spring reverb that allows you to control:

  • Number and type of springs
  • Saturation and physical behavior
  • “drip” and “boing” character

Main features:

  • Extremely realistic
  • Very customizable
  • From pure vintage → modern

It's the ultimate for advanced Fender-style sounds

SOUND CHARACTER

  • Bright and responsive
  • With authentic “drip”.
  • It can be soft or aggressive
  • Dynamic

More realistic than normal Spring Reverb

Control Parameters

Decaysec

Queue duration:

  • 0.8–1.5 sec → short
  • 1.5–2.5 sec → classic
  • 3+ sec → long
TonekHz

Brilliance:

  • 4–5 kHz → warm
  • 5–6 kHz → balanced
  • 6–8 kHz → bright
Clips%

Signal saturation:

  • Low → clean
  • Medium → hot
  • High → distorted

Simulates the reverb amplifier

Twang%

Drip attack:

  • Low → soft
  • Tall → very “springy”

Essential for surfing

Boing%

Spring resonance:

  • Low → controlled
  • High → “boing” effect

Taller = more character

SpringsPicklist

Configuration:

  • Single A → simple, clean
  • Single B → more colorful
  • Double A → fuller
  • Double B → more vintage
  • Triple Mixed → complex
  • Quadruple Mixed → huge

Softer = more dense

Mix%

Effect Quantity:

  • 15–25% → natural
  • 25–35% → noticeable
  • 40%+ → dominant
Width%

Stereo Width:

  • 0% → mono (realistic)
  • 50% → modern
  • 100% → very wide
TailsY/N
  • Y → continue
  • N → immediate stop

Pro Tips

  • Want to surf → High Twang + Medium Boing
  • Want Hot → Low Tone + Medium Clip
  • Want modern → Width high
  • Want realistic → Low Width

Universal setup:

  • Decay: 1.5 sec
  • Tone: 5.5–6 kHz
  • Clips: 25–30%
  • Twang: 50%
  • Boeing: 40%
  • Springs: Double A
  • Mix: 25%

Spring perfect live

For “super surf”:

  • Twang high
  • Boing medium-high
  • Medium clip

Authentic vintage sound

Quick Reference

  • Decay (sec): Duration
  • Tone (kHz): Brilliance
  • Clips (%): Saturation
  • Twang (%): Spring attack
  • Boing (%): Resonance
  • Springs: Soft type
  • Mix (%): Amount
  • Width (%): Stereo
  • Tails: Tail

Setup Examples

Authentic surfing

Decay1.8 sec
Tone6.5–7 kHz
Clips40%
Twang70–80%
Boeing60%
SpringsDouble B
Mix30%
Width0%

Pure Fender surf

Vintage blues

Decay1.5 sec
Tone5.5kHz
Clips25%
Twang40%
Boing30%
SpringsSingle A
Mix20–25%

Warm and natural

Modern spring

Decay2 sec
Tone6 kHz
Clips30%
Twang50%
Boeing40%
SpringsTriple Mixed
Mix25–30%
Width60%

More modern

Extreme spring FX

Decay2.5 sec
Tone7 kHz
Clips50%
Twang90%
Boeing80%
SpringsQuadruple Mixed
Mix35–40%

Extreme effect