The Thermionic Deluxe is a distortion pedal with two channels, A and B. Each channel has controls for volume, gain, bass, mid, treble, presence, and tight. The volume control adjusts the output volume, while the gain control determines the amount of distortion. The bass, mid, and treble controls allow for shaping the tone by adjusting the respective frequencies. The presence control focuses on the upper mid-range frequencies, while the tight control affects the low-end frequencies before the gain stage. The pedal also features footswitches for toggling between Channel A and B, as well as a bypass switch to bypass the entire pedal.

Summary created by AI from the original source.