Grace Design

ALiX - One Channel Preamp

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  • ALiX - One Channel Preamp, preamp top
  • ALiX - One Channel Preamp, preamp back
  • ALiX - One Channel Preamp, preamp side
  • ALiX - One Channel Preamp, preamp top 2
  • ALiX - One Channel Preamp, input cable diagram
Our Low Price: $765.00

Price shown may adjust with options selected below (if applicable)


The FELiX 2-channel preamp was released by Grace Design to great acclaim. Now get many of the same pro features in a single-channel model! The ALiX is the little brother of the FELiX; a "studio quality, acoustic instrument and mic preamp, designed for working musicians, engineers, sound companies or venues looking for the highest quality solution for amplifying stringed instruments."

With all the useful features that we usually recommend -- high pass filter, parametric EQ controls, notch filter, quality EQ, high-impedance input for piezoelectric pickups -- it's got the goods. The 1/4" instrument input features optional 12v phantom power for use with a small mic, and also has a three-position impedance switch for maximum compatibility (and best tone) from various pickups.

What's that mean? One of the big reasons to get a preamp when you have piezo pickups (pretty much meaning most upright bass pickups) is to create a "buffer" for the very high impedance that those pickups present. ALiX's input is switchable between three very useful impedance levels: 1 MegOhm, 10 MegOhm, and 332 kOhm. Adjusting these input impedances to properly buffer the output of your specific pickup will help you get the best, most natural sound out of your bass.

Includes our exclusive Gollihur Music tipsheet to get the most out of your purchaseThe DI output has flexible output options, with a variable level setting for best results, and there's a separate dedicated amplifier output on a 1/4" jack that is level-controlled for a stage amplifier.

The boost switch activates a 10db variable boost, so you can set a separate volume level that you can jump back and forth from. This is particularly handy if you play both pizz and arco, as the sustained attack of the bow normally means that arco gets amplified a good bit louder. In this case, just click the footswitch when you pick up the bow to "click down" to the lower output, and you won't blow out anyone's eardrums.

ALiX also has a dedicated tuner output. A TRS insert jack is also included for injecting effects, if so desired.

All this, with a 5-year warranty!


(Too Long; Didn't Read)

  • 1-channel studio-grade preamp
  • 1/4" instrument with selectable impedance and 12v phantom
  • Effects Insert with jumper-adjustable gain
  • Notch Filter/Low Cut Filter (selectable)
  • Phase Reverse (per channel)
  • Dedicated Tuner Output
  • Dedicated Amplifier Output with level control
  • DI output on balanced XLR
  • 3-Band EQ with parametric Midrange (adjustable Q). Can also alter "Low Corner Frequency" per-channel settings with internal jumper
  • Footswitch operation


Product Manual

Need to figure out some of the more in-depth features of this product? Here's a copy of the manual, in PDF format, here.

You may wish to visit the manufacturer's website to see if a more recent version is available.



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Warranty Information

We back up the FELiX, ALiX and BiX with the 5 year STANDARD limited warranty. To prove our commitment to the quality, serviceability and long term value of Grace Design products, it guarantees the products to be free of defective parts and workmanship for a period of five years.

Every product we sell comes with a warranty registration card for our customers to fill out and mail back to us. Also, product warranty registration can be completed online. We urge our customers to send in or complete their product registrations so we can keep them notified of any service, recall or upgrade situations that may arise. Any submitted information is held securely and in strict confidence.

In the event that anything should go wrong with a Grace Design product, our service department is available and ready to help our customers with prompt, courteous responses and quick turnaround schedules for any repairs that are necessary.

  • The Grace Design Standard warranty period begins at either: a) the date of original purchase - original customer proof of purchase required b) the date the product was originally shipped from Grace Design - if original customer proof of purchase is not available.
  • This warranty is transferable to any person who may subsequently purchase the product during this time.
  • This warranty excludes the following conditions: normal wear and tear, misuse, customer negligence, accidental damage, unauthorized repair or modification, cosmetic damage and damage incurred during shipment.
  • During the time of this warranty, Grace Design will repair or replace, at its option, any defective parts or repair defective workmanship without charge, provided the customer has appropriate proof of purchase and that the product has its original factory serial number.
  • Customers within the US are responsible for all inbound freight charges to Grace Design's facility, while Grace Design will pay for return freight charges via ground service. Customers outside the US must contact their distributor for warranty / product return details.
  • In order for Grace Design to provide efficient and timely warranty service, it is important that you mail the completed warranty registration card enclosed with all of our products within 10 days of the original date of purchase. You may also register your product directly with Grace Design by telephone (303-823-8100 Monday-Friday 9:00am to 5:00pm MST), or you can register your product online at
  • This warranty is in lieu of all other warranties whether written, expressed, or implied, INCLUDING ANY WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. In no event will Grace Design be liable for lost profits or any other incidental, consequential or Exemplary damages, even if Grace Design is aware of the possibility of such damages.
  • In no event will Grace Design's liability exceed the purchase price of the product. This warranty gives the customer specific legal rights. The customer may also have other rights, which vary from state to state. Some states do not allow limitations on implied warranties or consequential damages, so some of the limitations of the above may not apply to a particular customer.
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1 Review

  • 5

    Grace Alix Preamp

    Posted by David F on May 18th 2023

    This is one beautiful piece of hardware! The feature set and the rugged quality put it ahead of anything else I've owned. I use this for my acoustic upright (with Wilson K4 pickup), run via XLR cable into the back of a Quilter BB800 (bypassing its preamp) and I plug my Fender into the front of the Quilter - a very handy setup for doubling. The flexibility of the EQ is great; the HPF cleans up the lows; the boost switch is handy for solos; I love that it has an IEC mains-power connector and not a wall-wart; the 9v output means I don't need a power supply for my pedals; the multiple possibilities for personal configuration are well designed... and apart from that, the sound is perfectly transparent with loads of clean gain.

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