Pricing and availability
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Average Price: $385
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$50
$176+
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Based on price data from 3 merchants for "Grace Design BiX Acoustic Preamp". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.
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Description
Meet the Grace Design BiX Acoustic Preamp, the compact yet powerful companion your acoustic guitar has been waiting for. Inspired by the acclaimed FELiX and AliX preamps, the BiX brings the same pristine audio performance in a pedalboard-friendly format. Experience your guitar's sound with unmatched clarity and precision. From silky, open highs to strong, tight lows, this preamp captures your playing dynamics with vibrancy and truth in sound.
Designed with simplicity in mind, the BiX features easy-to-use controls, including input gain, low- and high-shelving EQ, and a variable 10dB boost circuit. The footswitches for boost and mute provide further control at your feet. I/O includes an instrument input, send and return insert jacks, an unbalanced line output, and a balanced ISO direct output on XLR.
To top it off, the BiX offers enhanced EQ control with rear-panel DIP switches that let you select between two different transition frequencies for both Low and High controls. Its compact, rugged chassis is designed to fit right onto your pedalboard, powered by 9VDC. With the Grace Design BiX, excellence in sound is always within your reach.
Key Features:
- Acoustic preamp pedal with pedalboard-friendly design
- 1/4" high-impedance input, 1/4" unbalanced line output
- Onboard FX send and return
- XLR DI transformer ISO output
- Variable boost (10dB)
- Mute and Boost footswitches
- High and Low shelving EQ
- Selectable equalization roll-off points
- 9VDC operation
- 5-year warranty (transferable)
- Crafted in Grace Design's Longmont, CO factory
Owner's manual
Grace Design BiX Acoustic Preamp User ManualProduct specs
| Type | Acoustic Preamp |
| Analog/Digital | Analog |
| Channels | 1 |
| EQ | 2-band EQ |
| Effects Types | Boost |
| Inputs | 1 x 1/4" (instrument) |
| Outputs | 1 x 1/4" (out), 1 x XLR (DI out) |
| Other I/O | 2 x 1/4" (insert send/return) |
| Power Source | 9V DC 150mA power supply (included) |
| Height | 2.5" |
| Width | 5.1" |
| Depth | 4.5" |
| Weight | 1.2 lbs. |
FAQs
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What instruments can the Grace Design BiX Acoustic Preamp be used with?
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The Grace Design BiX Acoustic Preamp is designed for acoustic instruments, making it ideal for acoustic guitars, mandolins, and other acoustic stringed instruments that require amplification.
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Does the Grace Design BiX Acoustic Preamp include any built-in effects?
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The Grace Design BiX Acoustic Preamp features a boost effect, which can enhance the signal and provide additional volume when needed.
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What kind of power supply is required for the Grace Design BiX Acoustic Preamp?
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The Grace Design BiX Acoustic Preamp requires a 9V DC 150mA power supply, which is included with the pedal.
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How does the EQ on the Grace Design BiX Acoustic Preamp work?
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The Grace Design BiX Acoustic Preamp features a 2-band EQ, allowing you to adjust the tonal balance of your instrument by boosting or cutting the bass and treble frequencies.
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Can the Grace Design BiX Acoustic Preamp be used as a direct box?
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Yes, the Grace Design BiX Acoustic Preamp includes an XLR DI output, allowing it to function as a direct box for sending a balanced signal to a mixing console or audio interface.
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What are the main output options on the Grace Design BiX Acoustic Preamp?
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The Grace Design BiX Acoustic Preamp offers a 1/4" output for connecting to an amplifier and an XLR DI output for sending a balanced signal to a PA system or recording device.
Videos
Full Compass
Grace Design BiX Instrument Preamplifier Overview | Full Compass
Reviews
PROS
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Delivers perfect, clear sound across various instruments
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Simplistic design, with essential features only
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Compatible with common 9V power supplies
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Provides natural, uncolored acoustic sound enhancement
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Offers clean headroom with internal transformer for high-quality output
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Constructed durably and made in the USA
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Enables easy tone adjustments without complex controls
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Enhances live performances with clarity and life
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USB stick included with clear, comprehensive manuals
CONS
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Lacks a dedicated mid control, requiring workarounds
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Input jack positioning (far left) considered odd by some
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Missing "always on" 1/4" output for tuner use when preamp is muted
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Some users feel it's pricey without a discount
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Grace Design BiX Acoustic Preamp.
Comparisons
User experience
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Users appreciate the Grace BiX's simplicity, finding fewer controls can lead to less user error in achieving desired sound.
Source
Use cases and applications
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The Grace BiX is favored by musicians in jam band settings transitioning from single mic setups.
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Billy Strings uses the Grace Design BiX, noting its compact size and custom wiring to suit his setup needs.
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For bluegrass and jam band settings, the BiX effectively handles dual-output setups, supporting both magnetic and transducer pickups for dynamic sound blending.
Source
Features and functionality
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The Grace Design BiX is preferred by some for providing a clean signal path, crucial for blending multiple pickups and a mic, as used by Billy Strings.
Source
Based on 0 Reviews and 0 Ratings
Artist usage
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At 9:14 in the video, the shot of Billy's pedalboard shows his Grace DI pedal.
"I should tell ya, my Grace DI has been modded. I had them make... So I have an input, and there's a DI out. There's also a 1/4 inch out... Usually what would happen, if I press this mute button it would mute the 1/4 inch out as well. I had Grace make this one special so it bypasses the mute, so that it's for my tuner. So whenever I'm muted, my tuner's still on. And then I come out of the tuner into this volume pedal, then it goes out of the volume pedal into a Brothers stage. Then I have an EQ and then that goes into the Fender amp."
More info: https://www.premierguitar.com/articles/29250-rig-rundown-billy-strings
This pedal is mentioned in 2019 Premier Guitar interview.
In an Instagram post by Andy Wood, he can be seen using the Grace Design BiX Acoustic Preamp. The caption reads, "Now THIS thing rules for plugging in your acoustic instruments direct. Video coming this week." This indicates that Andy Wood uses the Grace Design BiX Acoustic Preamp. The post was made on September 21, 2020.
Genre Usage
Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.
Used With
Based on how musicians on Equipboard use Grace Design BiX Acoustic Preamp, it is most commonly used with the following gear.
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