The Orange Crush 20RT is the ultimate Orange practice amp. It has an integrated tuner and internal reverb, and the Crush 20RT couldnt be more usable.Its 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.It has a twin channel, high gain preamp design with lots of great tonal options, from crispy clean to Oranges signature bluesy tube-like crunch, as well as an high-gain metal sound without losing its richness and clarity. Switch between clean and dirty channels through the amps top panel or through the optional footswitch.The 3 band EQ and Gain knob provide you with a variety of Orange tube amp tones. The Orange Crush 20s Voice of the World speaker to deliver a modern low-end punch and vintage highs, while the Cab-Sim feature on the headphone output emulates the soun