Headrush Impulse Responses
60s412V
Inspired by Marshall® 4x12 1960V
Typical interpretation:
- 60s → vintage 60s cabinet
- 412 → 4x12 case
- V → variant “Vintage / V30 / specific mic”
In practice: IR more mid-focused and aggressive than the “A” version, ideal for rock, hard rock, metal
Recommended Parameters
Gain (dB)
IR volume (non-distortion)
- It is used for correct gain staging
- Avoid digital clipping
HeadRush treats the signal as an analog chain → the gain is added between blocks (HeadRush)
Examples:
- Clean: -5 dB
- Rock: -7 dB
- Metal: -9 / -12 dB
IR “V” curtains to be more present → often you need to lower it more
HiCut (Hz)
Cuts high frequencies (treble)
- Reduces digital fizz
- simulates microphone roll-off
“Lower frequency = less high” (HeadRush)
Realistic range:
- 4kHz → 9kHz
Examples:
- Dark Vintage: 4.5 kHz
- Rock: 6–7 kHz
- Modern Metal: 7–8.5 kHz
With “60s412V”: caution: it can become sharp → use lower HiCut
LoCut (Hz)
Cuts low frequencies
- eliminates mud
- avoids conflict with bass/drums (sevenstring.org)
Realistic range:
- 70Hz → 150Hz
Examples:
- Clean: 80 Hz
- Rock: 100 Hz
- Metal tight: 120–140 Hz
IR “V” often has more controlled low-end → you can turn up LoCut
Mix (%)
Blend between direct and IR signal
- 100% = standard
- <100% = parallel
Real use:
- Guitar → always 100%
- Sound design → 70–90%
Pro Tips
Universal starting point:
- Gain: -8 dB
- HiCut: 6.5 kHz
- LoCut: 110 Hz
- Mixes: 100%
If the sound is:
- too “mosquitoy” → lower HiCut
- too “boxy” → raise LoCut
- too compressed → lowers Gain IR
Setup Examples
Hard Rock (Slash / Guns)
Gain-7 dB
HiCut6.5 kHz
LoCut100 Hz
Mixes100%
Sound:
- medium present, warm crunch
Modern Metal (tight)
Gain-10 dB
HiCut7.5 kHz
LoCut130 Hz
Mixes100%
Sound:
- aggressive, defined, no mud
Classic vintage rock
Gain-6 dB
HiCut5.5 kHz
LoCut90 Hz
Mixes100%
Sound:
- soft but with highlighted mids