I had this amp for 5 weeks now. My first tube amp. Was super excited to get it. I for the life on me cannot get the sound I like. I have spent countless hours adjusting, and readjusting. I keep hearing about Marshall tones, great sound, etc. Well it isn't coming from this amp. I just can't seem to get rid of the muddy, muffled sound. Go the other way, and I get the hated tinty sound. I had 3 different people try to adjust this thing and we are all scratching our heads. Bought a Metal Muff pedal, hoping this would help. Nope. My nephews damn Line Six sounds better than this Marsahll. I play a Gibson Les Paul and like classic rock. Shouldn't be that hard to come up with the sound I like. Well it is.