Orange Crush20RT Practice Amplifier The Orange Crush20RT is here to blow away your expectations of what a practice amplifier can be.  With an all new high gain 4 stage preamp of versatile tones, digital spring reverb, onboard chromatic tuner and a twin channel tonal platform you can save space without sacrificing features or sound.  Add in the all new CabSim feature and you can have all the sound of a full 4x12 cabinet right in your ear. • A completely new revision to the exceedingly popular Original Orange Crush Pro models • High gain preamp design for responsive overdrive and highly detailed levels of saturation • Analogue Circuits for tones which react similarly to their larger counterparts • All New CabSim feature provides all the strength of a 4x12 cabinet through a dedicated headphone output • Footswitchable Channels • Digital Spring Reverb • Twin Channel Tonal Platform • Onboard Chromatic Tuner • Distinctive Orange Tolex Exterior