After almost 8 months of research and development, Slash and Marshall have tweaked the AFD100 enough to be the most accurate reproduction of the original amp that Slash used to record the Guns N' Roses album, Appetite For Destruction. The AFD100 was limited to 2,300 pieces worldwide (2,300 because when it cames out, it's been 23 years since the Appetite For Destruction album) Specifications of the Marshall AFD100 Slash Signature amp: 100W Valve Head 5 x ECC83 Preamp Valves 4 x 6550 Power Amp Valves 2 Jack Inputs (vintage styled) EQ & Master Volume Power Attenuation (right down to 0.1 watts) FX Loop switchable on front panel Tonal switch between #34/AFD and FX Loop mode Speaker Output: 2 x 4 ohm, 2 x 8 ohm, 1 x 16 ohm 2 Way Footswitch