You can choose an amplifier model from the Amp pop-up menu near the top of the interface.
UK Combo 30W: Neutral-sounding amp, suitable for clean or crunchy rhythm parts.
UK Top 50W: Quite aggressive in the high frequency range, suitable for classical rock sounds.
US Combo 40W: Clean sounding amp model, suitable for funk and jazz sounds.
US Hot Combo 40W: Emphasizes the high mid-frequency range, making this model ideal for solo sounds.
US Hot Top 100W: This amp produces very fat sounds, even at low Master settings, that result in broad sounds with a lot of “oomph.”
Custom 50W: With the Presence parameter set to 0, this amp model is suitable for smooth fusion lead sounds.
British Clean (GarageBand): Simulates the classic British Class A combos used continuously since the 1960s for rock music, without any significant modification. This model is ideally suited for clean or crunchy rhythm parts.
British Gain (GarageBand): Emulates the sound of a British tube head and is synonymous with rocking, powerful rhythm parts and lead guitars with a rich sustain.
American Clean (GarageBand): Emulates the traditional full tube combos used for clean and crunchy sounds.
American Gain (GarageBand): Emulates a modern Hi-Gain head, making it suitable for distorted rhythm and lead parts.
Clean Tube Amp: Emulates a tube amp model with very low gain (distortion only when using very high input levels or Gain/Master settings).