What do you get when you cross decades of tone expertise with 21st-century tech? You get Marshall's fantastic JMD:1 Series, that's what! These amps are 100% Marshall, indeed, packed with sheer EL34 tube power. But the secret behind the series is in the collaboration between Marshall and Swedish software gurus Softube. The two companies dreamed up state-of-the-art digital preamp technology, so you can plug into more tonal possibilities than ever before. In fact, with every Marshall JMD:1 Series amp, it's like having 16 preamps at your disposal. The preamps range from clean to crunch to overdrive to lead, with four preamp tones in each category. More than that, each amp sports built-in effects, including four different delay types (with tap tempo), four different modulation types, and reverb.