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25 ON-1 Crunch
ReValver Amplifiers

25 ON-1 Crunch

Inspired by HeadRush Original

The 25 ON-1 Crunch is the intermediate channel of the ReValver series:

  • From deep clean to full crunch
  • Excellent dynamic response
  • Perfect for rock and blues

Main features:

  • Defined crunch
  • Responds to touch
  • Great with pedals

It is the "most used live" channel

SOUND CHARACTER

  • Crispy and defined
  • Rich in mediums
  • Tight on the lows
  • Responsive to picking

Perfect for rhythms

BluesRockHard RockHeavy MetalJazzFunkPopCountryBass

Controls

Bright

Adds shine:

  • Y → more attack and definition
  • N → warmer
  • Useful for cutting into the mix
High Gain

Increase saturation:

  • Y → more distortion
  • N → classic crunch
  • Transform the channel into a quasi-lead
High

High frequencies:

  • Low → soft
  • High → brighter
Mid

Averages:

  • Low → scooped High: more presence
  • Fundamental for crunch
Low

Low:

  • Low → tight
  • High → fuller
Presence

High finals:

  • Low → dark High : open
Resonance

Deep bass:

  • Low → controlled
  • High → more punch
Gain

Saturation:

  • 40–50% → light crunch
  • 50–65% → full crunch
  • 65%+ → almost lead
Volume

Preamp Level:

  • It affects the dynamics
Output Level

Final volume:

  • Does not alter the tone

Pro Tips

BEHAVIOR

  • Mid = heart of the sound
  • Gain = crunch amount
  • Presence + Bright = cut in the mix
  • Resonance = body

QUICK ADJUST

  • You want crunch: medium gain
  • Want more attack: bright ON
  • Want more body: resonance on
  • You want more presence: high mid

PRO TIP (VERY IMPORTANT)

Universal setup:

  • Bright: Y
  • Gain: 55%
  • High: 55%
  • Mid: 60%
  • Low: 45%
  • Presence: 55%
  • Resonance: 45%

Perfect crunch live

PRO LEVEL MAKEUP

Use with:

Light OD in front

become the perfect lead

COMMON MISTAKE

Too much gain and you lose definition

FINAL TRUTH

25 ON-1 Crunch = the most useful channel: dynamic, musical, live-ready

Setup Examples

Classic crunch (perfect)

BrightY
High GainN
Gain55%
High55%
Mid60%
Low45%
Presence55%
Resonance45%

Classic rock

Crunch blues

BrightN
Gain50%
High50%
Mid65%
Low50%
Presence45%

Warmer

Modern crunch

BrightY
High GainY
Gain60–65%
High60%
Mid55%
Low45%
Presence60%

More aggressive

Edge of breakup

High GainN
Gain45%
Volume55%
Mid55%

Dynamic