The Xotic XXP-1 is an expression pedal, a foot-operated controller rather than a tone-shaping effect: it sends control signals to compatible devices to sweep a parameter such as volume, delay time or a filter frequency while you play. Its headline feature is what Xotic sums up as "ONE PEDAL. THREE EXPRESSIONS": three expression functions combined in a single unit, so one pedal on the board can do the work of several1. Xotic lists it as a new introduction on its product page, and it is sold to end users through the Xotic Online Shop under model number XXP-112.
Three expression functions in one pedal
The XXP-1's purpose is consolidation. Instead of dedicating one expression pedal to one device, it offers three expression functions in one housing1. The control that sets it apart from a straightforward expression pedal is Xotic's proprietary heel control knob, which the maker describes as letting players "fine-tune an assigned parameter on the fly with a touch of the heel"1. In practice that means the heel end of the treadle is not just the bottom of the sweep: it is a second adjustment point you can reach without bending down to a knob on another pedal.
The output is a 20K ohm treadle pedal expression output, switchable between TRS and TS wiring1. That switch matters because devices are not consistent about which wiring they expect from an expression pedal, and a mismatch is a common cause of a pedal that moves the wrong way or not at all.
Xotic describes the enclosure as a "lightweight yet rugged aluminum chassis for durability without the bulk"1. At 2 lb. (910 g) it sits at the lighter end for a full-size treadle pedal1.
Specifications
| Specification | Value |
|---|---|
| Expression output | 20K ohm, TRS or TS switchable1 |
| Dimensions (W/D/H) | 3.94" x 8.27" x 2.64" (100 x 210 x 67 mm)1 |
| Weight | 2 lb. (910 g)1 |
| Chassis | Aluminum1 |
| Power | Regulated power supply, negative center3 |
Power and care
The manual's power instruction is short: use only regulated power supplies with a negative center polarity3. Xotic does not publish a voltage or current draw figure for the XXP-1 on the pages referenced here. The manual also advises disconnecting power before cleaning3.
A few points from the manual worth knowing before the pedal leaves the box:
- For indoor use only3
- Intended solely for processing electric guitar audio signals; any other use is considered improper and may cause damage4
- Do not disassemble or modify the product3
- The device contains small components; keep away from children3
- Remove batteries from the device before disposal, and dispose of batteries separately from household waste3
- Do not dispose of the device with normal household waste; take it to an authorized electronic waste recycling facility3
Demo
Xotic's product page hosts a demo of the XXP-1 played by Mike Hermans, which shows the three expression functions and the heel control knob in use1.
Questions
What is the Xotic XXP-1?
The XXP-1 is an expression pedal made by Xotic. It combines three expression functions in a single pedal, so one unit can control parameters on compatible devices. It has a 20K ohm expression output that can be switched between TRS and TS wiring, and a proprietary heel control knob that lets a player fine-tune an assigned parameter on the fly with a touch of the heel. The chassis is aluminum, described by Xotic as lightweight yet rugged.
Is the Xotic XXP-1 output TRS or TS?
Both. The treadle pedal expression output is a 20K ohm output that is switchable between TRS and TS, so it can be matched to the device it is connected to. Some effects units read an expression pedal on a TRS connection while others expect TS, so the switch is what lets the XXP-1 work with either kind of device.
How much does the Xotic XXP-1 weigh?
Xotic lists the weight as 2 lb., or 910 grams. That figure comes from the maker's own product page.
What power supply does the Xotic XXP-1 need?
The manual says to use only regulated power supplies with a negative center polarity. Xotic does not publish a voltage or current draw figure for the pedal on the pages referenced here, so those figures are not given. The manual also advises disconnecting power before cleaning the unit.
How big is the Xotic XXP-1?
Xotic gives the dimensions as 8.27 inches deep (210 mm), 3.94 inches wide (100 mm) and 2.64 inches high (67 mm). At 2 lb. (910 g) it is a full-size expression pedal footprint, but the aluminum chassis keeps the weight down.
Sources (4)
- Xotic XXP-1, Xotic California (xotic.us)
- XXP-1 Expression Pedal, Prosound Communications, Inc., 2025-10-01
- XXP-1 Manual outlined, Xotic, 2026
- XXP-1 Manual outlined, Xotic, 2026
