The NUX Ace of Tone is a dual overdrive pedal stacked with Tubeman MKII and Morning Star.

In the left corner: Tubeman with FAT mode. Tubeman offers way more clarity and gain than any classic Tubescreamer, and NUX modified the circuit with a useful secondary function by simply holding the foot switch–FAT mode. It cranks way more bass response to enhance the low-end yet makes the tone warmer.

In the right corner: Morning Star with SHINE mode. Morning Star is based on legendary Bluesbreaker circuit: very transparent, low gain drive. Like NUX's Morning Star, it also features a simple FOOT SWITCH HOLD to engage the iconic SHINE mode. In SHINE mode, you can get way more treble sound to make your tone crystal-clear.