
Headrush Impulse Responses
CT-Brit412V30-160121.wav
Inspired by Marshall® 4x12
Name decoding:
- CT → Choptones
- Brit → cabinet Marshall-style (British)
- 412 → checkout 4x12”
- V30 → speaker Celestion Vintage 30
- 160121 → microphone combination:
- 160 → Beyerdynamic M160 (ribbon → soft, natural)
- 121 → Royer R121 (ribbon → hot, full)
Sound character
This IR is very “high-end studio”:
- low full but controlled
- warm mids and less aggressive than SM57
- high smooth and natural (ribbon mics)
- broad, three-dimensional response
Result: big, soft, professional sound
Perfect for:
- modern rock
- hard rock
- smooth leads
- professional mixes
- direct recording
Recommended Parameters
Gain (dB)
IR level
IR already full → don't overdo it
Examples:
- Clean: -4 dB
- Rock: -6 dB
- Leads: -7 dB
Rule: keep headroom to not compress
HiCut (Hz)
Cuts high frequencies
ribbon mic → highs already soft
Realistic range:
- 5.5 kHz → 7.5 kHz
Examples:
- Rock: 6.5 kHz
- Leads: 6–6.8 kHz
- Mixes: 6.2 kHz
Rule: DO NOT overdo it → you lose natural detail
LoCut (Hz)
Cuts low frequencies
V30 + ribbon → full bass
Realistic range:
- 90Hz → 130Hz
Examples:
- Rock: 100 Hz
- Leads: 110 Hz
- Mixes: 115–120 Hz
Rule: Check low-end without emptying
Mix (%)
Blend IR / dry
Standard:
- 100%
Creative:
- 80–90% for ambient
Pro Tips
Great starting point:
- Gain: -6 dB
- HiCut: 6.3–6.8 kHz
- LoCut: 105–115 Hz
- Mixes: 100%
This IR is already “mixed” with ribbon:
less harsh more natural less need for EQ
perfect for: direct recordings
CT-Brit412V30-160121 is perfect:
as the main studio IR for professional leads for modern rock in combination with more aggressive IRs
Setup Examples
Modern rock
Gain-6 dB
HiCut6.5 kHz
LoCut100 Hz
Mixes100%
Sound:
- big, hot, defined
Hard rock / smooth lead
Gain-7 dB
HiCut6.2 kHz
LoCut110 Hz
Mixes100%
Sound:
- smooth, natural sustain
Studio mix-ready
Gain-6 dB
HiCut6.3 kHz
LoCut115 Hz
Mixes100%
Sound:
- perfectly balanced
Modern rhythm
Gain-6 dB
HiCut6.8 kHz
LoCut110 Hz
Mixes100%
Sound:
- powerful but controlled

