The various programs make for prime simulation of the original cabinets on which it was based. All the originals’ typical properties such as different frequency responses, rotor speeds, coloration, start-up and decay times have all been determinated via precise measuring techniques and subjected to psycho-acoustic analysis. In the Fx 70 the 24 bit signal processor ARS-10 calculates the identical algorithms, thus providing perfect simulation of the original sound in stereo. A room simulation can