Overview by GAK nThe Orange Crush 20RT is the ultimate Orange practice amp. It has an integrated tuner and internal reverb, and the Crush 20RT couldnu2019t be more usable. nItu2019s punchy and dynamic tone comes in part thanks to the Orange 8 Voice of the World speaker. Combined with the all-analogue circuitry, it means that all of the components are of the highest quality. The 20RT is the perfect practice amplifier for the discerning guitarist. nIt has a twin channel, high gain preamp design with lots of great tonal options, from crispy clean to Orangeu2019s signature bluesy tube-like crunch, as well as an high-gain metal sound without losing itu2019s richness and clarity. Switch between clean and dirty channels through the ampu2019s top panel or through the optional footswitch. nThe 3 band EQ and Gain knob provide you with a variety of Orange tube amp tones. The Orange Crush 20u2019s Voice of the World speaker to deliver a modern low-end punch and vintage highs, while t.