Headrush Cabinets
4X12 GREEN 20W
Inspired by Marshall® (Celestion G12- M)
4x12" Speaker
The 4x12 Green 20W it is inspired by the first speakers Low power greenback, characterized by:
- Sound very vintage, compressed and soft
- Breakup even earlier than 25W
- Warm medium and sweet high
- Ideal for blues, 60s rock, vintage leads and low volume cranked sounds
Controls
Axis (Y/N)
Microphone position:
- Y (On-axis) -> more attack
- N (Off-axis) -> softer and vintage
Off-axis = maximum old school character
Breakup (%)
Simulate cone saturation:
- Low -> clean warm
- Medium -> soft crunch
- High -> very noticeable and compressed breakup
- Very quick breakup -> super vintage font
Out Gain (dB)
Check the output volume:
- Negative -> attenuation
- 0 dB -> neutral
- Positive -> boost
Amp Gain (dB)
Check the input level:
- Negative -> less thrust
- 0 dB -> neutral
- Positive -> More compression and saturation
Here the interaction with breakup is very strong
Suggested Microphones
Pro Tips
CABINET BEHAVIOR
- Very compressed and soft sound
- Very fast breakup
- Warm and musical mediums
- High sweet → never harsh
- Advice:
- High breakup → authentic “cranked” sound
- Ribbon → maximum heat
- Dyn57 → more attack if needed
- Off-axis → more vintage
Advice
- High breakup → authentic “cranked” sound
- Ribbon → maximum heat
- Dyn57 → more attack if needed
- Off-axis → more vintage
Final advice
- Breakup 55–70% → true low watt Greenback sound
- Ribbon Off-axis → super vintage lead
Setup Examples
Vintage crunch / 60s
Mic TypeDyn57
AxisN
Breakup50–60%
Amp Gain+1 dB
Out Gain0dB
Warm/dynamic blues
Mic TypeDyn409
AxisN
Breakup55–65%
Amp Gain+1 dB
Out Gain0dB
Vintage lead / super creamy
MicTypeRibbon 121
AxisN
Breakup60–70%
Amp Gain+1 dB
Out Gain+1 dB