Why these?

From the beginning The Impulse Guys set out to create Impulse Responses that were of the highest possible level using equipment that is unobtainable to the average musician or recording engineer.

Most IR's available are very limited by the several factors: cabs, mics, preamps, etc.  We set out to offer IR's made on the absolute finest gear available in the world and record in the finest rooms in the world in order to give you, the end user, the experience of being in these world famous rooms using almost unobtainable gear . . .and all through the expertise and ears of a Master Engineer.  

You'll find these IR's to be of outstanding fidelity and clarity and also offering mic and preamp combinations not available anywhere else!