This is what Orange say about the Crush 20:

Crush 20

The Crush 20 twin-channel amp delivers powerful, uncompromising guitar tone in a compact and portable design. Featuring footswitchable Clean and Dirty channels, its newly designed four-stage high-gain preamp offers a wide range of overdriven and distorted tones, packed with rich harmonic overtones.

The sheer punch achieved through the Crush 20’s custom 8″ Voice of the World speaker is nothing short of staggering, with a commanding delivery that belies amp’s modest footprint. Featuring an Aux In for backing tracks and a CabSim-loaded headphone output the Crush 20 is an obvious choice for players seeking the legendary ‘Orange sound’ in a practice amp format.

• 3 band eq
• cabsim-loaded phones output
• instrument input
• controls: dirty gain, dirty volume, overdrive, bass, middle, treble, clean volume, channel selector switch
• aux in
• phones output
• footswitch jack
• finish options: orange or black basket weave vinyl
• output power: 20 watts
• speaker: custom 8 voice of the world
• unboxed dimensions (w x h x d): 30.5 × 29 x 17.5cm (12.01 x 11.42 x 6.88)
• unboxed weight: 4.7kg (10.4lb)