Despite its diminutive size, the JM120 is rated at a hefty 120 watts RMS, making it well equipped for even the biggest gigs. The combo offers no less than 18 of the world's most popular amplifier tones, including Black Twin, Tweed, Rectified, Blues Combo, Boutique, High Gain, Class A Clean, Class A Dirt, High Wattage, Master Volume, Modern Gain, Hot Rod, Clean Tube, Crunch Tube, Saturated Tube, Fuzz, Overdrive and Metal. Furthermore, EQ points for each amp simulation are set up to accurately match those of their respective models for the most realistic emulation at every setting. Vibro-Pan, Ring Modulator, Pitch, Delay and three Reverbs. A total of 27 factory presets are provided, as well as 27 locations for the user's custom-defined settings.
Effects are all fully programmable, with up to three available at once.
The intuitive user interface makes the JM120 as easy to use as simply connecting a guitar and playing. The Marquis JM120's preamp uses a high-voltage 12AX7 vacuum tube to deliver the unique warmth and richness necessary to duplicate the tones of the world's most popular amps. To date, Johnson Amplification is the only modeling amplifier manufacturer incorporating tubes in its preamps. The rear panel of the JM120 features stereo effects send and return loop jacks. For maximum versatility on stage, the JM120 can be used in conjunction with Johnson's optional J3 footswitch or new J8 foot controller.