But its diminutive size comes at no sacrifice to power. Rated at a hefty 60 watts RMS in mono, with the addition of an external speaker, the JM60 can provide an incredible 120 watts RMS in true stereo. The combo offers no less than 18 of the world's most popular amplifier tones, including Black Twin, Single Tweed, Rectified, Blues Combo, Boutique, High Gain, Class A Clean, Class A Dirt, High Wattage, Master Volume, Modern Gain, Hot Rod, Tube Clean, Tube Crunch, Tube High Gain, Fuzz, Overdrive and Saturated. 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. 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 JM60 as easy to use as simply connecting a guitar and playing. The Marquis JM60'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 JM60 features stereo effects send and return loop jacks in addition to a connector for an external speaker. For maximum versatility on stage, the JM60 can be used in conjunction with Johnson's optional J3 footswitch or J6 controller.