
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

