99 PV51 II Crunch
Headrush Amplifiers

99 PV51 II Crunch

Inspired by Peavey 5150 II (Crunch)

The model 99 PV51 II Crunch it is designed to deliver modern, defined and powerful crunch, ideal for:

  • Modern rock, hard rock and hardcore blues
  • Incisive rhythms and dynamic leads
  • Tight sounds with great low end control

Compared to the Clean version, here you have more gain, more punch and greater aggression, while maintaining definition.

BluesRockHard RockHeavy MetalJazzFunkPopCountryBass

Controls

Bright

Activate the high frequency boost:

  • Y → more attack and definition
  • N → warmer and fuller sound
  • Useful for cutting through the mix
High

Control the high frequencies:

  • Low → smooth sound
  • High → bright and punchy
Mid

Controls the mid frequencies:

  • Low → scooped sound
  • High → more body and presence Fundamental for rhythms and leads
Low

Control the low frequencies:

  • Low → tight and controlled
  • High → fuller and more powerful
Presence

Controls the final brilliance:

  • Low → smooth sound
  • High → more aggressive and open Adds “air” and definition
Pre Gain

Control the preamp gain:

  • Low → light crunch
  • High → full crunch / distortion
  • It's the heart of saturation
Resonance

Controls the low frequency response of the power amp:

  • Low → tighter lows
  • High → deeper lows and “thump” Very important for modern riffs
Post

Controls the volume of the final (master):

  • Low → less push
  • High → more body and pressure Affects the general feel
Output Level

Controls the final volume:

  • Negative → attenuation 0 d
  • B → neutral
  • Positive → boost Does not alter the timbre

Pro Tips

BEHAVIOR OF THE AMPLIFIER

  • Modern, defined and powerful crunch
  • Excellent bass control (thanks to Resonance)
  • Modular gain → from crunch to distortion
  • Dynamic and aggressive response

Advice:

  • Pre Gain high → more saturation
  • Resonance → adjusts the “weight” of the sound
  • Mid → avoids disappearing into the mix
  • Presence + High → definition and attack

Final advice:

  • Pre Gain + Resonance → define the modern character
  • Medium-high mid → essential for live mixes
  • Presence + High → attack and definition
  • Perfect for modern rock and hard rock

Setup Examples

Modern rock crunch

BrightY
High60%
Mid55%
Low50%
Presence60%
Pre Gain60%
Resonance50%
Posts65%
Output Level0dB

Hard rock / powerful riff

BrightY
High65%
Mid55%
Low55%
Presence65%
Pre Gain70%
Resonance60%
Posts70%
Output Level+1 dB

Lead crunch / driven solo

BrightY
High65%
Mid60%
Low50%
Presence65%
Pre Gain75%
Resonance55%
Posts70%
Output Level+2 dB