I am, however, unwilling to provide free support to someone who is selling their IRs.īmi - I am not here to debate the viability of free product vs. As I have stated before, I am willing to acquire IRs of user-provided speakers under the condition that I am free to share them with others. I have used testing techniques that are well-known to anyone with a background in acoustic testing and measurement, and the resulting IRs are faithful to the speaker/cab combinations in a way that no close-mic'ed attempt can possibly replicate. Very few, if any, of them bear substantial resemblance to a valid IR of the speaker they are purported to represent, as you would hear it while actually playing through the speaker. Some of these 'IRs' may actually sound 'good' to some players.

With currently available software tools, it has become trivially easy to create a data record that appears to be a loudspeaker impulse response. Given that, had I billed a customer for those services, the bill would have run to five figures, I am reluctant - understandably, I hope - to provide free engineering support to an entity that is looking to profit from the same kind of work I have performed for this community gratis. I chose after serious consideration to provide these IRs to the Axe-Fx community at no charge.

To produce my IRs, I have applied expertise in design and testing which I acquired over more than a quarter century of professional loudspeaker R&D and more than six years of physics education prior to that.

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