The MS10 was designed specifically to recreate the tonality of large British amplifiers. Because of various reasons including different tubes (valves), equalization voicing, speaker characteristics and cabinet resonances these amps sound drastically different than other amps. The punch control simulates the cabinet resonance at certain low frequencies while the attack and edge concentrate on high frequency e.q. and speaker traits. Distortion is adjustable and at full settings simulates not only pre-amp clipping but adds the effect of power-amp and speaker overdrive.