Grace Design Roxi

A pedal format that transposes console reflexes onto your pedalboard

Musicians' and technicians' needs are clear: a clean gain, immediate tonal control, and reliable connectivity without relying on a console channel strip. This microphone preamplifier pedal meets this logic by gathering the key functions of an "essential" channel strip into a compact format, ready to integrate into a pedalboard. The goal is simple: keep control of your sound, whether you feed a PA via DI or an amp via dedicated output, while maintaining a fast and reproducible stage workflow.

Who is it for and what are the uses?

This pedal is aimed at singers, backing vocalists, beatboxers, speakers, and any musician using a microphone on stage (including acoustic instruments miked with a microphone). It is also suitable for hybrid setups where you want to send a DI XLR signal to the front of house while keeping a separate AMP output for a monitor, stage amp, or effects chain.

In practice, you can use it as a front-end before a multi-effects unit, a reverb/delay in the loop, or as a sound safety tool: filter the lows, EQ, control the level with the Boost, and quickly manage effect activation thanks to the FX Mute. The Tuner output facilitates integrating a tuner into a rig where you want to maintain a clean monitoring line.

Sound control and integration: the functions that make the difference

Microphone preamplification and +48 V phantom power

The heart of the pedal is a microphone preamp designed to bring your signal to a usable level while remaining practical to operate by foot. The +48 V phantom power opens the door to condenser microphones, highly appreciated for their precision and dynamics, especially on vocals or certain acoustic instrument recordings. The combined XLR/6.3 mm Jack input allows easy switching between a microphone source and an instrument source, simplifying stage changes.

High-pass filter 75 Hz / 150 Hz: more clarity, less rumble

The switchable high-pass filter at 75 Hz or 150 Hz helps clean up the low end depending on the situation. At 75 Hz, you retain more body while eliminating stage vibrations and handling noise. At 150 Hz, you get a more radical treatment, useful to reduce proximity effect, limit plosives, or gain headroom before feedback in challenging environments.

3-band EQ: quick and effective adjustments

The 3-band EQ provides essential control to adapt your voice (or instrument) to the sound system and overall mix. Whether to brighten intelligibility, tame harshness in the upper mids, or add warmth, the 3-band format remains the best compromise between precision and speed in a live context. Combined with the high-pass filter, this EQ allows creating a more stable and "mix-ready" sound right out of the pedal.

Effects loop with FX Mix and FX Mute footswitch

The pedal integrates an effects loop with FX Send/Return on 6.3 mm Jack, ideal for inserting delay, reverb, modulation, or harmonizer without degrading input level coherence. The FX Mix control lets you precisely dose the amount of effect in your signal, a crucial point to preserve vocal articulation. Additionally, the FX Mute function via footswitch is particularly useful to instantly cut effects between songs, avoid unwanted reverb tails, or keep speech clear between tracks.

Variable Boost and phase inverter: level control and compatibility

The variable Boost circuit is used to highlight a passage, compensate for a level drop, or adapt the signal to a downstream chain (effects, amp, console). The phase inverter is a discreet but valuable tool: it can help correct phase issues depending on cabling, interaction with an amp, or complex pickup and monitor configurations.

Universal internal power supply and external block option

For stage and touring, the pedal offers a 100 - 240 V internal power supply, convenient to limit adapters and secure the setup. It also features a connection for an external 9 V / 500 mA power supply block, useful if you standardize your pedalboard power supply.

Technical specifications