These are 4 Impulse Responses made by Silas Fernandes ( guitarist, engineer producer)
 
Celestion Metal 1 was captured from a Marshall 1960a 4x12 
 .Speaker : Cetestion G12t-75 
 .Mic Sm57
2x12 Metal 2 was captured from a EVH 5150lll 50w
 .Speaker: G12H 70th Aniversary
 .Mic Sennheizer e609
V30 Gold Monster was captured from a Marshall 1960a 4x12
.Speaker: Celestion Vintage 30
Mics: Shure Sm57 mixed with Sennheizer MD 421
The Reaper was captured from a  Randall CX 4x12
Speaker: WGS Reaper 30w
Mic: Sennheizer e609