Panama Guitars Shaman 20W Tube Amplifier Head (Antique Graphite and Plum) 2 Independent Channels, 4 Voicing The Shaman 20 is designed to deliver the ultimate in flexibility: From 50s cleans and hot-rodded British tones, to fire-breathing modern metal, this little beast does it all. It features 2 fully-independent footswitchable channels (Clean and Unclean) each with independent Master, Presence, Bass, Mid, Treble, Gain and 2 switchable voicing modes covering a range of tones From classic tweed and blackface cleans to hot-rodded British and ultra-modern high-gain, with a shared, hard-bypassable effects loop and a selectable 10/20 Watt EL84 Power Section. Supernatural tonal flexibility in a stunning package. Crafted on the side of a volcano in the tropical rainforest of Panama. Compact cabinet handcrafted from sustainably harvested tropical tonewoods.