The Cabinet simulation was carefully designed to get the most distinctive cabinet tones. A Closed Back 8x10, with its tight and punchy lows. A vented 1x15 for warm creamy mids and thick lows, and a vented 4x10 for more open, wider range response.
The Speaker color switch, Warm, Bright and Modern, simulates the different materials and geometry of bass speakers, which affects the dynamics and midrange response.
And with the Resonance and Mic position controls, you can adjust the exact amount of high end brightness and the cabinet low end resonance you want.