The SOS25 ’Phonix’ pack contains 40 captures of the Vertex Ultra Phonix Mk1 in each of the ToneX, NAM Standard and NAM Nano formats. (Full details above.)
 
Here’s what Vertex have to say about their pedal, ‘The Ultraphonix Overdrive is designed to re-create the overdrive produced by a Dumble™ Overdrive Special amplifier. Four Overdrive Specials were used in the voicing and calibration of the Ultraphonix, each amp ranging in origin from the years 1970-1990. Being modeled after four different generations, the Ultraphonix accurately captures the character of the legendary Dumble™ amplifier, regardless of the minute and more apparent differences in the amp from year to year. The Ultraphonix is more than able to provide the D*style overdrive in front of any clean amp platform. Engage the Ultraphonix in tandem with another overdrive pedal or in front of a broken-up amp to really cut through a mix with a huge lead tone or thundering rhythm tone.’
 
Seen under the feet of, amongst others, Cory Wong, Joey Landreth, Theo Katzman