CT-Brit412G12M-421160.wav
Headrush Impulse Responses

CT-Brit412G12M-421160.wav

Inspired by Marshall® 4x12

Name decoding:

  • CT → Choptones
  • Brit → cabinet Marshall-style (British)
  • 412 → checkout 4x12”
  • G12M → speaker Celestion Greenback (G12M)
  • 421160 → microphone combination:
  • 421 → Sennheiser MD421 (body, low-mid)
  • 160 → Beyerdynamic M160 (ribbon → softness, naturalness)

Sound character

This IR is very different from modern V30s:

  • low soft and vintage
  • warm and musical mids
  • high smooth (thanks to the M160 ribbon)
  • less aggressive response

Result: vintage, warm, very “album-ready” sound

Perfect for:

  • classic rock
  • blues rock
  • vintage hard rock
  • soft leads
  • old-school recordings

Recommended Parameters

Gain (dB)

IR level

Vintage IR → less compression → you can keep it higher

Examples:

  • Clean: -4 dB
  • Rock: -5 dB
  • Leads: -6 dB

Rule: Maintains natural dynamics

HiCut (Hz)

Cuts high frequencies

presence of ribbon (M160) → tops already soft

Realistic range:

  • 5 kHz → 7 kHz

Examples:

  • Clean: 5.5 kHz
  • Rock: 6–6.5 kHz
  • Leads: 6–6.8 kHz

Rule: DO NOT lower it too much → you lose air

LoCut (Hz)

Cuts low frequencies

vintage bass → less tight → need control

Realistic range:

  • 80Hz → 120Hz

Examples:

  • Clean: 80 Hz
  • Rock: 95 Hz
  • Leads: 100–110 Hz

Rule: increase to avoid “vintage mud”

Mix (%)

Blend IR / dry

Standard:

  • 100%

Creative:

  • 80–90% for ambient

Pro Tips

Great starting point:

  • Gain: -5 dB
  • HiCut: 6–6.5 kHz
  • LoCut: 95–105 Hz
  • Mixes: 100%

This IR is already “smooth” (thanks to the ribbon)

less need for aggressive HiCut perfect for leads excellent for natural mixes

CT-Brit412G12M-421160 is perfect:

for authentic vintage sounds for analog-style recordings with Marshall amps layered with modern IRs

Setup Examples

Classic rock (Marshall style)

Gain-5 dB
HiCut6.2 kHz
LoCut95 Hz
Mixes100%

Sound:

  • warm, punchy, vintage

80s hard rock

Gain-6 dB
HiCut6.5 kHz
LoCut100 Hz
Mixes100%

Sound:

  • big but soft

Vintage leads

Gain-5 dB
HiCut6.3 kHz
LoCut100 Hz
Mixes100%

Sound:

  • fluid, musical

Studio vintage tone

Gain-5 dB
HiCut6 kHz
LoCut95 Hz
Mixes100%

Sound:

  • natural, mix-ready