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Average Price: $599
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$599
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Based on price data from 4 merchants for "Grace Design REX Microphone Preamplifier". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.
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Description
Meet the Grace Design REX Microphone Preamplifier, a studio-grade preamp that seamlessly adapts to stage environments with its pedalboard-friendly design. This powerhouse of a pedal grants musicians and vocalists the ability to fine-tune their sound with precision, echoing the pristine clarity and openness of traditional Grace Design preamps. Equipped with a 75Hz high-pass filter and a 2-band shelving EQ, the REX allows you to effortlessly sculpt your audio, whether you're amplifying vocals, acoustic instruments, or anything in between. Its intuitive interface is built for quick adjustments, with a dynamic boost control that offers up to +10dB of clean amplification, ensuring your performance cuts through any mix.
The REX is more than just a preamp; it's an all-in-one solution for artists seeking control over their live or studio sound. With an onboard FX loop, you can integrate your favorite effects, adding layers of depth to your performance. The robust metal chassis ensures durability, making it a reliable companion on the road. Whether you're an experienced studio engineer or a gigging musician, the Grace Design REX delivers professional quality with the convenience of a pedal, empowering you to shape your sound with confidence.
Key Features:
- Compact mic preamp pedal with boost, mute, and 2-band EQ
- Up to +57dB of gain and +10dB adjustable boost
- Highpass filter with 75Hz floor for clarity
- 2-band EQ with fixed frequencies at 250Hz and 2kHz
- XLR and 1/4-inch outputs for versatile connectivity
- FX loop for integrating external effects
- Rugged metal chassis designed for live performance
- 48V phantom power support
- Includes AC adapter and 5-year transferable warranty
Product specs
| Preamp Type | Solid State |
| Number of Channels | 1 |
| Phantom Power | Yes |
| EQ | 2-band EQ |
| Analog Inputs | 1 x XLR, 1 x 1/4" (return) |
| Analog Outputs | 1 x XLR, 1 x 1/4" (amp out), 1 x 1/4" (send) |
| Channel Inserts | Yes |
| Power Source | 9V AC power supply (included) |
| Height | 2.5" |
| Depth | 4.5" |
| Width | 5.1" |
| Weight | 0.8 lbs. |
FAQs
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Does the Grace Design REX Microphone Preamplifier provide phantom power for condenser microphones?
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Yes, the Grace Design REX offers phantom power, allowing you to use condenser microphones that require external power.
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What are the input and output options available on the Grace Design REX Microphone Preamplifier?
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The Grace Design REX features 1 XLR and 1/4" return input, and outputs include 1 XLR, 1/4" amp out, and 1/4" send, offering versatile connectivity for various setups.
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Can the Grace Design REX Microphone Preamplifier be used with electric guitars?
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Yes, the Grace Design REX can be used with electric guitars, thanks to its 1/4" input and output options, making it suitable for both studio and live settings.
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What type of EQ does the Grace Design REX Microphone Preamplifier include?
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The Grace Design REX includes a 2-band EQ, allowing you to adjust the tonal characteristics of your audio signal for optimal sound quality.
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Is the Grace Design REX Microphone Preamplifier pedalboard-friendly?
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With its compact dimensions (2.5" x 4.5" x 5.1") and lightweight design (0.8 lbs), the Grace Design REX is pedalboard-friendly and easy to integrate into your setup.
Videos
Sean Daniel
Putting the Grace Rex Mic Pre-Amp to the Test
Putting the Grace Rex Mic Pre-Amp to the Test
Sean Daniel
Grace Design REX Preamp - Put Your Favorite Pedals on Acoustic Guitar!
Sean Pierce Johnson
Reviews
PROS
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Crystal clear sound quality with impressive volume capabilities
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Adequate built-in two-band EQ for most situations
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Seamless integration with guitar pedals through the FX loop
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Minimal feedback with dynamic and vintage microphones
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Compact design fits on a small pedalboard with 9v power compatibility
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Reliable headphone monitoring using "Amp Out" output
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Smooth, sturdy construction with first-rate build quality
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Innovative integration of live performance and recording setups
CONS
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Gain runs close to clipping at higher levels without additional preamp
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Lacks a light indicator for phantom power status
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Grace Design REX Microphone Preamplifier.
Features and functionality
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The Grace REX/Roxi preamps include an FX loop, allowing for integrated effects processing similar to guitar setups.
Source -
Grace preamps, derived from their Alix and Felix DI boxes, are praised for ultra-clean audio quality, making them suitable for on-stage vocal processing.
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The Grace Design REX preamp is often paired with an LR Baggs bridge pickup for optimal sound in loud settings, reducing feedback issues common with other pickups.
Source
Comparisons
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The Grace Design REX preamp is compared to the Joemeek ThreeQ for form factor and subjective sound quality, though the REX might offer superior audio fidelity.
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The REX preamp, when used with a Barcus Berry fitted bridge pickup, is favored for its ability to maintain good acoustic sound without feedback, unlike clamp-on variants.
Source
Use cases and applications
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Grace floor preamps like the REX are considered excellent for live settings with musicians seeking more control over vocal effects without a FOH engineer.
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The REX preamp is suitable for musicians wanting to treat their voice like an instrument, allowing for personalized effects and setups in live performances.
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The REX preamp is frequently used in conjunction with an X-vive in-ear monitor system to achieve clear sound monitoring, even in noisy environments.
Source
Build quality
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Grace preamps, including the REX, are recognized for their robust build, being a reliable choice for professional audio environments.
Source
Critic Reviews
Based on 0 Reviews and 0 Ratings
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