The GrandMeister family packs the world’s smartest tube amp design, pairing analog all-tube tone with smart control features in a very nifty package. Every knob and switch setting can be easily saved, stored and recalled at the touch of a button, and the studio-quality on-board effects settings are saved right along with the gain and EQ knob values. Handling just doesn’t get any easier than this. Now the GrandMeister Deluxe 40 is here to raise the bar for guitar tone another notch or two by transforming that great Meister sound into pure tonal magic. The secret to this sonic success is our brand new Deluxe Tone Technology, an innovative circuit design the Hughes & Kettner engineering team spent many years researching and developing.