Here is a list of the best free guitar cab IRs or guitar cabinet impulse responses.
Just in case some of you are unsure of what these are, here’s a short explanation.
An impulse response, or an IR, is an audio file containing a recording of a short audio signal being played through a certain piece of equipment or in a certain space. Take a listen to an impulse response file and you’ll discover that it sounds like a short burst or a pop. But, load that same file in an impulse response loader and you will hear a faithful sonic recreation of the space in which the IR was recorded. Or, in the case of a guitar cabinet impulse response, you will hear the frequency response of the sampled amplifier. The process which makes this possible is called convolution. It allows us to save a certain frequency response as an audio file and then apply it to other sounds.
For more information, check out this great article about convolution by EarLevel Engineering.
And if it’s all clear now, here’s the list of the best guitar cabinet impulse responses:
To load guitar impulse responses, use freeware plugins like NadIR by Ignite Amps.