The Hotone Nano Legacy Thunder Bass Head translates the searing power of a bass amplifier monolith into a tiny package that pumps out nothing but authentic tone. Designed with a nod to the famous Ampeg heads of yesteryear, the Thunder Bass incorporates features like a three-band EQ, built-in effects loops, and changeable ohm impedance for reams of versatility in a head that weighs less than a pound.