The MG15GFX is loaded with pure Marshall tone. You get your choice of Clean, Crunch, OD1, and OD2 channels that you can shape with a 3-band EQ. You also get integrated reverb, delay, and other digital effects. Best of all, each channel's settings are storable and recallable. The MG15GFX is loud enough to rattle the windows during practice sessions, while its revolutionary solid-state design convincingly emulates a tube amp's tone and response. Beyond that, the MG15GFX supplies you with a line input for music players and emulated headphone and line outputs. Part of Marshall's MG Gold series, the MG15GFX is a great-sounding, feature-packed practice amp.