The Crush 20RT Orianthi Signature Edition is a 20-watt combo with a fully analogue signal path and two channels, Clean and Dirty. The Clean channel is meant to stay clear at volume, while the Dirty channel runs from crunch to full saturation. A three-band EQ (Bass, Middle, Treble) shapes both, and a channel selector switch on the panel changes between them. An optional footswitch can do the same job from the floor.

On top of the standard Crush 20 layout it adds a built-in digital reverb with a warm, spring-style character and an analogue dry-through path, plus an integrated chromatic tuner. The headphone output carries an analogue CabSim circuit that emulates a miked Orange 4x12 cabinet, so it can be used for silent practice or direct recording. An Aux In allows playing along with backing tracks.

The amp uses a custom 8-inch Voice of the World speaker. The footswitch jack is on the rear panel; the footswitch is sold separately. This edition is finished in white tolex with a black grill cloth.