The KLDguitar PGA18H has many special features , which let PGA18H go from a roar to a whisper, shaking the boards on stage, tingling spines in the studio, and raising goose-bumps in the still of night - even during silent recording. Its three-step power soak brings the sound of the big stage into small clubs and your bedroom. Blending power soak with Pentode/ Triode, player can obtain from 18w to 0.5w power. enables a reduction of power from 15w down to 0.5w. With the built-in Red Box and silent recording capability, you can lay down pro-quality tracks at any time day or night.