Crimson Audio Yellow SM57/SM58 Modification

Crimson Audio

(16 reviews) Write a Review
Product Code: 8400
$57.58
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This item is in stock and will ship the same day if ordered prior to 3pm EST Monday - Friday. Otherwise, it will ship the next business day.

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The Crimson Audio Yellow SM57 & SM58 Modification is a custom-tuned handle that transforms the legendary Shure SM57 or SM58 into a punchier, more forward, and more energetic recording tool. This "Rock Personality" delivers enhanced presence, output, and mix-cutting character while retaining the trusted performance of the microphone platform you already know and love. Simple to install and exclusively available from Front End Audio!

Known as the "Rock Personality" within the Crimson Audio Mod Squad lineup, the Yellow modification handle is designed for engineers and creators seeking maximum impact and presence from their microphone. Whether you're recording snare drums, guitar cabinets, percussion, or aggressive rock instruments, Yellow delivers the energy, punch, and projection needed to help your source stand out in even the busiest mixes. The Yellow modification handle utilizes a custom transformer design that reshapes the sonic character of your microphone, producing increased output, enhanced midrange presence, and a more forward overall presentation. Many users describe the Yellow as adding excitement and authority to a source while maintaining the versatility that has made the SM57 and SM58 industry standards for decades.

Simple Installation
Installation is simple and requires only a few solder connections, making it an excellent option for DIY enthusiasts. Prefer a turnkey solution? Front End Audio also offers professionally assembled microphone options, allowing you to enjoy the benefits of the Yellow Personality right out of the box.

Explore The Other Personalities
The Yellow Personality is just one member of the Crimson Audio Mod Squad lineup. Each personality offers its own unique sonic character, allowing you to tailor your trusted Shure SM57 or SM58 to different recording situations. Visit the Crimson Audio Mod Squad page to learn more about all four personalities and discover which one is right for your recording style.

  • Orange "Vintage Personality" – Warm, full, smooth, and vintage-inspired.
  • Yellow "Rock Personality" – Punchy, forward, energetic, and built to cut through the mix.
  • White "Studio Personality" – Detailed, open, refined, and ideal for critical instrument recording.
  • Blue "Vocal Personality" – Smooth, present, focused, and optimized for vocal applications.

Crimson Audio Yellow SM57/SM58 Modification Applications

  • Snare Drum
  • Guitar Cabinets
  • Percussion
  • Rock Instruments
  • Live Recording

Crimson Audio Yellow SM57/SM58 Modification Options

Front End Audio has made it easy to build the modification handle of your choice. However, if you have any questions please reach out to us and we will be happy to assist you in deciding what options best fit your needs.

  • Select Your Cartridge: Add either an SM57 or SM58 cartridge (with or without grill) to your handle. Many customers already have an extra SM57 or SM58 in their studio that they're happy to dedicate to this modification. If this is your situation, then there is no need to add a cartridge. However, if you don't want to cannibalize one of your existing microphones then this is your solution.
  • Add a Microphone Clip: The Shure A25D Microphone Clip is a durable, vibration-resistant mount designed to securely hold your favorite Shure dynamic microphones in place. Featuring a break-resistant construction and an adjustable angle design, the A25D makes it easy to position your mic exactly where you need it - whether on stage or in the studio. Compatible with industry-standard mic stands, it’s a simple, reliable upgrade that ensures stability and optimal performance from your microphone.
  • Add a Granelli Audio Labs Handle: The Granelli Handle option is a 90-degree elbow that works seamlessly with the Crimson Audio modifications. It gives your mic a 90-degree angle to help improve your mic-placement options on drums, guitar amps and bass cabinets. This popular addition expands your microphone placement options and adds even more versatility to your setup.
  • Modification: This unique modification is not only affordable, but easy to do yourself. It only takes a couple minutes with some very basic soldering skills. However, if you want to skip the extra work or don't have the tools, then we are happy to provide the modification for you. When Front End Audio does the modification we will QC all parts, assemble the microphone, QC the finished microphone, secure it in its own zippered mic bag (only when Front End Audio does the modification), and get it on the way to you typically within 1-2 business days - so you are ready to go right out of the box!

Crimson Audio Yellow SM57/SM58 Modification Features

  • Rock Personality – Punchy, forward, energetic, and built to cut through the mix
  • Compatible with Shure SM57 and SM58 microphones
  • Custom transformer design for enhanced output and presence
  • Increased midrange focus and projection
  • More forward overall sonic presentation
  • Excellent for snare drums, guitar cabinets, percussion, and rock instruments
  • Simple installation with only a few solder connections required
  • Color Coded XLR connector for easy identification
  • Fully reversible modification
  • Designed and Manufactured in the USA
  • Exclusive from Front End Audio

Crimson Audio Yellow SM57/SM58 Modification Includes

  • Crimson Audio Yellow SM57 & SM58 Modification Handle
  • Selected Options
  • Installation Instructions
  • Manufacturer Warranty

Videos Hide Videos Show Videos

16 Reviews Hide Reviews Show Reviews

  • 5
    This beast does indeed cut!
    Poppa

    The Yellow mod is keenly cutting without being harsh and has no honk. A crisp upper end, thick low end and refined tone. So glad to have this mod! And, Front End has the mod already done for instant gratification :-) Highly recommended! Get all the colors from Crimson!

  • 5
    The Best SM57 Mod Out There!
    Vahe Manoukian

    The Crimson Audio Yellow Mod is my favorite to use on guitar amps. The Yellow mod sounds like an SM57 on steroids. If you have busy song arrangements then this mic is perfect because the upper mid push helps your instruments like snare and guitars cut through the mix. A wonderful and easy mod!

  • 5
    Nice 57 mod
    Gerry Diwa

    These Crimson Audio 57 mods are a no brainer! Cheap and quick and voila a new dimension on the 57 mic. This yellow modded 57 has been permanently assigned to the Marshall 1960 guitar cabinet coz the mids are so nice and smooth and the bottom has a bot of bloom, too! Thanks to FEA for making this mod available to the masses.

  • 5
    crimson handle
    richard burtsfield

    hook this baby up to a 545 capsule. very nice for live gig

  • 5
    Excellent upgrade!
    Brian Bartleson

    Fuller sounding than my stock 58. Sweet sparkly highs and a deeper low-end. Anxious to try the white mod on the 57 I use for snare!

  • 5
    This is what I always wanted a 57 to sound like
    Peter P

    I’ve never been a big 57 fan. They’re fine for certain things and handy to have in an emergency, but I’ve never understood the love that some people have for them. The Yellow flips the script. Smooth and mighty with just the right amount of bite. It’s probably going to live in front of my Vibro-Champ for the foreseeable future, but I’m looking forward to trying it on other sources. This...THIS...is the guitar sound I had in my head. I bought the separate handle/head version and it took about 1 minute to solder. Highly recommended.

  • 4
    Yellow SM mod
    Johnny

    This mod works for the Shure 565 “Woodstock” mic.

  • 5
    Mic Mod Review
    Laura

    Fantastic! A great idea that really beefs up the sound. It helps the instruments jump out of the mix more. I would certainly purchase another one of these. Great!

  • 5
    Well worth it!
    Michael D Levine

    The yellow mod is wonderful! It adds a level of fidelity I did not expect to hear. So much so that I recorded a voiceover with it. On a snare drum, pure magic. The airiness of the top end gives such a polished and complete tone. I love it!

What We Think

avatar

The staff at Front End Audio knew the Crimson Audio Yellow SM57/SM58 Modification was something special the first time we put it in front of a loud guitar cabinet and snare drum. As the "Rock Personality" of the Crimson Audio Mod Squad lineup, Yellow brings a punchy, forward, energetic character that helps sources cut through a mix with authority while still retaining the familiar reliability and versatility of the legendary SM57 and SM58 platform.

Where the Yellow Personality really shines is on snare drum, guitar cabinets, percussion, and aggressive rock instruments that need to command attention. There's an immediacy to the sound that makes everything feel bigger, more energetic, and more alive. The additional output and presence help instruments step forward in a mix naturally, while the overall presentation remains smooth and musical rather than harsh or brittle. It's the kind of microphone that makes you want to turn up the monitors and keep tracking.

Among the four Crimson Audio personalities, Yellow is often the one we recommend when a customer wants maximum energy and impact from their microphone. If Orange is about warmth and vintage-inspired character, Yellow is about excitement, punch, and attitude. Whether you're tracking loud guitars, cracking snares, percussion, or energetic live recordings, the Yellow Personality consistently delivers the kind of forward, mix-ready sound that engineers and musicians love.

Front End Audio, Your Ultimate Pro Audio Dealer

Got questions? Call us at 1-888-228-4530 we are here to help!

OVERSIZED & HEAVY

OVERSIZED & HEAVY!

This Oversized & Heavy special order item may require additional shipping and cannot be canceled or returned.

This is a special order item that is considered oversized and heavy by all shipping carriers and will most likely be delivered via a freight truck.

Due to the item’s size and weight, additional shipping may have to be collected and once ordered cannot be canceled or returned. We will contact you if the final shipping quote differs from the shipping estimate provided at checkout. This item will ship as quickly as possible but there may be a lead time.

Please contact us for further information or for a more detailed shipping timeframe and cost.

Qualifies for Free Shipping

FREE SHIPPING!

On Orders over $99 in Lower 48 States

Shipping is expensive thats why Front End Audio has made it easy for you to ship your orders for free. Qualified orders of $99 or more enjoy free shipping in the lower 48. It doesnt get much easier that that!

There are some exclusions so check out our Shipping Policy page in the Customer Service section at the bottom of the page.

Tax Free Shopping

TAX FREE SHOPPING

Enjoy Tax Free Shopping outside of SC.

If you are ordering from outside the state of South Carolina - congratulations! Front End Audio does not collect sales tax for purchases made outside of SC. In all other states, you are responsible for your own taxes.

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LifeTime Support

LIFETIME SUPPORT

We stand behind our customers!

Plain and simple, if you purchased a products from Front End Audio then our staff will always be here to give you support. From techincal and application questions to good ol' advice, we have you covered.

30 Day Returns

30 DAY RETURNS

Hassle free returns, easy and convenient.

Our return policy is simple. If you don't like your item for any reason, contact us within 30 days of receipt and we will authorize you a return authorization number no questions asked! There are a few exclusion so check out our Returns Policy page located in the Customer Service section at the bottom of the page.

EASY FINANCING

EASY FINANCING

Easy and convenient financing designed for you!

We here at Front End Audio know exactly what it's like to be working with a budget while making gear purchases. Therefore we have been working to make a variety of attractive and convenient financing options available to you. Whether financing your gear is for business or pleasure, optional or a necessity, Front End Audio has a financing plan that will work with your needs. Simply checkout the Financing page located in the Resources section at the bottom of the page.

Free Shipping

FREE SHIPPING!

On Orders over $99 in Lower 48 States

Shipping is expensive thats why Front End Audio has made it easy for you to ship your orders for free. Qualified orders of $99 or more enjoy free shipping in the lower 48.! It doesnt get much easier that that!

There are some exclusions so check out our Shipping Policy page in the Customer Service section at the bottom of the page.

Special Order Item

SPECIAL ORDER ITEMS CANNOT BE CANCELLED OR RETURNED

Special Order items are typically ordered in directly from the manufacturer so there may be a lead time. Rest assured that we will ship this item as quickly as possible. If you have a deadline or timeframe questions then please contact us before placing the order so we can make sure that we can meet your expectations.

Digital Delivery

LICENSE WILL BE EMAILED WITHIN 24 HOURS

This product is delivered electronically within 24 hours. However, if you're ordering after 6PM EST weekdays or on weekends, we'll process your order the next business day.

When purchasing electronic licenses or software it is your responsibility to make sure that your computer system meets and or exceed the required specification to install, run and operate the software. Electronic licenses are not returnable for any reason.

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AUTHORIZED DEALER

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Front End Audio is an authorized dealer for all the product lines we sell. What that means for you is that anything purchased through Front End Audio is guaranteed 100% authentic gear and carries a full manufacturer’s warranty.

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