Marshall Origin ORI20C Tube Combo Amp Features: Packed with 3 ECC83 preamp tubes and 2 EL34 power tubes 10" Celestion V-type speaker provides classic British tone Separate Gain and Master controls for dialing in the right amount of crunch Presence knob and 3-band EQ for shaping your tone Unique Tilt control blends bright and normal sounds Switchable Low/Mid/High power enables high-output sounds at any volume