Marshall JMD:1

It's a new era for Marshall Amplification -- Capturing the best of both worlds, the JMD:1 Series integrates an all-valve power amp, an advanced digital preamp, and studio-quality multi-effects.

The preamp offers 16 presets divided into clean, crunch, overdrive, and lead categories, all of which are accessed with a single knob; these settings reflect tones from a range of current and historic Marshall amps. According to Marshall, the JMD:1 uses complex algorithms to replicate amplifier topologies at the component level, providing a much more interactive performance. In addition, the series offers four fully-programmable channels and the Marshall Stompware foot controller that gives access to 28 programmable sounds.