Yamaha THR10II 20W compact desktop guitar amplifierIntroducing the Yamaha THR10II 20W compact desktop guitar amplifier Guitarists are familiar with the tube amp stacks that sound amazing when turned up loud on a big stage, and with combo amps that are a perfect fit for smaller venues and rehearsal. THR ignored the convention that a practice amp should simply be a smaller version of a larger amplifier, creating a new third amp category designed around what players need when theyre playing at home. The