The Xiphos Amp Overdrive is a single-channel adaptation of side B of the Duellist dual pedal, specifically based on the King Tone Heavyhand circuit. It was traced by Aion FX in 2022 and first released in 2021.

The Heavyhand circuit is derived from the Marshall Bluesbreaker overdrive circuit but includes several modifications and switch options. The core circuit of the Heavyhand is shared with the Duellist, but there are some differences between the two pedals.

The Heavyhand adds an additional Body potentiometer, a new diode selector switch, and replaces the “Fat” toggle mode with a new “Edge” mode. These modifications give the Heavyhand its own unique tonal characteristics that differ from the Duellist.

The Xiphos Amp Overdrive combines the features of both the Heavyhand and the Duellist. It includes the additional Body potentiometer and the new diode selector switch from the Duellist that were not present in the original Heavyhand circuit.

In addition, the Xiphos Amp Overdrive adds an extra diode in one direction on a DIP switch, making both clipping diode modes asymmetric when active. It also offers an option for diode-to-ground hard clipping through an internal DIP switch.

It’s important to note that when the hard-clipping mode is enabled, the external diode selector switch may have less audible effect due to the low clipping threshold of the hard clipping.

Overall, the Xiphos Amp Overdrive combines the best features of the Heavyhand and the Duellist, offering a versatile and unique overdrive pedal with a wide range of tonal options.

Summary created by AI from the original source.