Based on the Roland® JC-120 Jazz Chorus
No Master → 100%
No Presence → Exception, neutral in this case should be 50% instead of 0.
Roland Jazz Chorus is a solid-state instrument amplifiers produced in Japan since 1975. Its name comes from its built-in analog chorus effect. The Jazz Chorus series became increasingly popular in the late 1970s and early 1980s new wave and post-punk scenes because of its clean yet powerful sound, durability and relatively low cost when compared to the more commonly used amplifiers of the time such as Marshall or Fender. It also found favour amongst funk players in America. It also became popular to use for clean tones in heavy metal, with the most famous users being James Hetfield and Kirk Hammett from Metallica.
The Jazz Chorus is one of the most famous and successful combo amplifiers from its period and its earliest users included Albert King, Andy Summers (The Police), Robert Smith of The Cure and Siouxsie and the Banshees and Pat Metheny.
Engage the Bright switch to add some bite, add a chorus after the amp to simulate the stereo chorus.