Klowra Mantra Dual Expression Pedal

An Expression Pedal for Modern Setups

The expression pedal is one of the most musical tools on the pedalboard: it does not create an effect by itself, but it allows you to play a parameter in real time as you would play a note. Historically associated with volume, filter, and modulation controls, it has become essential with the rise of multi-effects, programmable delays and reverbs, and pedals capable of assigning expression to multiple functions. The Mantra KBA-02 Dual Expression fits this current logic: offering simple, direct, and above all adaptable foot control thanks to its dual output and polarity selectors.

For Whom and In What Contexts?

The Mantra KBA-02 Dual Expression is aimed at musicians who want to shape their sound on the move, without letting go of the neck or breaking the flow. It suits both guitarists and bassists and naturally finds its place in a live-oriented rig (for smooth and spectacular transitions) as well as in the studio (to automate swells, fades, or texture variations in one take).
Depending on your gear, an expression pedal can control volume, modulation depth, reverb mix, delay feedback, filter frequency, drive amount, or even morphing between two settings. With its dual output design, the KBA-02 is particularly relevant if you use two devices (for example, a multi-effects + a delay), or if your equipment accepts two separate expression inputs to control two independent parameters.

Two Outputs, Independent Polarity: Truly Flexible Control

The strength of this pedal lies in its ability to integrate into different environments. Devices do not all expect the same polarity on the expression input: depending on brands and standards, a pedal can respond inversely (heel \= max value, toe \= min value) or fail to use the full travel. The Mantra KBA-02 Dual Expression features an individual polarity selector for each output, allowing you to adapt the behavior to each connected device.
Its 10 kOhm linear potentiometer promotes a smooth progression throughout the travel: practical for finely balancing a mix, gradually opening a filter, or performing clean crescendos. This sensation of "continuous" control is essential when working in styles where textures evolve (ambient, post-rock, worship, electro, modern rock), but also when precise management is needed in more traditional contexts (blues/rock solos with progressive boost, or foot-level control).

Sound Character

An expression pedal is not intended to color the signal: its "sound" is the quality of the gesture it enables. With the KBA-02 Dual Expression, the goal is to regain a fluid and musically usable sensation: a progressive variation, easy to dose, that helps make your parameter changes more natural. Rather than an effect heard as an additional layer, the expression here becomes an extension of your playing: you sculpt intensity, space, attack, or density in real time, with stable and predictable control.

Technical specifications

Effects	Volume / Expression	Use	electric guitar
Technology	Analog	Color	White
Format	Pedal

Number of outputs	2	Power supply	none required (passive operation)
Polarity selector	individual	Power consumption	0 mA
Potentiometer	10 kOhms linear	Required voltage	none
dimensions	51 x 162 x 81 mm