Factory Reset:You can at any time return the amplifier to all its original factory settings.With the amplifier in the OFF state, hold down the DEL FX Button, turn ON the power switch, continue holdingdown the DEL FX Button for a few seconds while all the LED’s flash, then as the LED’s become steady, release theDEL FX Button & the factory settings are restored.Amp Model DefinitionsLinebackerSoundsTone Description Amp modelledCrystal Pure & Clean Clean channel of an LC amp - bright and fullCrystal + Clean with Compression Clean channel of an LC amp - bright and full + a clean boost pedal togive more low endVC Clean & Warm A VC combo set cleanVC+ 1 x 12" Combo Semi Distorted A VC combo with the drive channel switched to give a semi broken uptoneHeart 1 x 12" Classic vintage tone Lionheart Combo on the clean channel pushed hard giving you a classicsemi distorted vintage toneHeart + 1 x 12" Classic vintage distorted tone Lionheart combo with more gain dialled inVolt Classic rock distortion Tube head and cab combination - set to give you a crunch toneVolt + Classic rock solo tone Tube head driven hard - more gain dialled inTI Crushing rhythm tone TI signature head pushedTI + Hard rock solo tone TI signature head pushed hardWreck Insane full on gain Drive channel of a modern valve head - full on!