Andy Timmons and Keeley Electronics Team Up To Create a New Overdrive

Dynamic duo: Andy Timmons and Robert Keeley collaborated on the versatile, spanking new Super AT MOD, from Keeley Electronics.
Ever wonder how a manufacturer and an artist collaborate on a signature model? Here’s the story of the Keeley Super AT MOD Overdrive.
In the world of guitar gear, artist signature products are a time-honored tradition. When the chemistry works just right, they’re as potent and attention-grabbing as a well-struck power chord.
But if you’ve ever wondered how an artist and manufacturer actually work together on a product, the new Keeley Electronics Super AT MOD overdrive provides a striking case study in the mind-meld process.
While the new Super AT MOD looks like a classic 3-knob overdrive, the mode toggle is the pedal’s secret sauce, and the AT setting adds a particularly shimmering quality to the harmonically rich overdrive.
The versatile pedal is the latest creative partnership between ace guitarist Andy Timmons (known for his solo work and touring/recording with Danger Danger, Olivia Newton-John, Kip Winger, and many more) and Robert Keeley, a pioneer and leading presence in the realm of guitar effects.
In a collaboration spanning more than three years, Timmons and Keeley have become great friends, mutual provocateurs, and culinary kindred spirits. (More on that later.) They began working together in early 2020, when Timmons and Keeley teamed up on the wildly successful HALO dual echo pedal.“We spent more than a year-and-a-half really fine-tuning that pedal,” says Timmons. “It was a wonderful collaboration. We couldn’t have imagined how it would resonate with so many people.” Keeley adds with a laugh “I have found that my customers like what Andy’s ears like. It resonates so much with our customers that the Halo has become 25 percent of our business. Andy’s ears are really golden.”
Buoyed by the HALO collaboration, in late 2022 the creative process resumed in a new direction: a signature overdrive. In conceiving the new Super AT MOD overdrive, Timmons knew exactly what he was looking for: a flexible, highly responsive overdrive that can beef up a guitar’s tone but also offers an option to achieve high-end clarity and shimmer.
The initial inspiration for the Super AT MOD came from Timmons’ love of a classic Keeley mod for the Boss BD-2. “The modded BD-2 goes from clean to mid-gain, and it’s very responsive to touch,” Timmons notes. “But I was always reaching for this crystalline, glassy gain with just a little bite. So, with the new pedal we have two modes: a ‘phat mode’ which alludes to Robert’s original modded circuit, and then there’s the AT ‘modded modded’ side.”
Keeley Electronics Super AT Mod Overdrive - Video Demo Review with Robert Keeley and Andy Timmons
Andy Timmons and Robert Keeley talk about their collaboration for the new Super AT MOD, and Timmons displays its versatility and powerful dual-mode gain. You’ll also hear the guitarist use his other Keeley signature pedal—the HALO Dual Echo.
Sometimes Less Is More
Keeley took a different angle in designing the Super AT MOD. In contrast to his normal modus operandiof boosting certain frequencies, this pedal’s “modded modded” AT Mode is based on a subtractive method for sculpting the pedal’s tone.
“The original phat mod was designed to push up the bridge pickup of a Strat or Tele and give it a bit more girth,” Keeley explains. “But Andy pointed out that if we carve away some of the frequencies, his guitar will stand out more. Andy was approaching this from the opposite direction, playing with a pickup that’s much more akin to a humbucker, with a bigger dynamic range, so it doesn’t need that push on the low- and mid-bass.”
During the development and testing phase, Timmons relied primarily on his main guitar–his Ibanez ATZ100 signature model with three humbucking pickups–and his beloved Mesa/Boogie Lonestar 2x12 combo. But the final version of the pedal offers an expansive versatility that makes it a fine companion for just about any rig.
“I’m lucky to find these cohorts in tone. We enjoy the process and hopefully that comes through in the final product.”
That flexibility is due, in large part, to the aforementioned tone-shaping method that Timmons encouraged Keeley to employ. “To me, the subtractive approach is a great way to arrive at a better tone,” Keeley says. “You can take away some of the excess and it leaves you with something more natural. With that in mind, the AT mode changes the tone control and what it allows to pass through. It takes out some of the bass tones, so it clears up that range and makes humbuckers less bloated. We also added a little bit of sparkle—some high frequency response from letting the natural stuff go through.
“We also tried to get a more tube-like sound, with the diodes and asymmetrical clipping,” Keeley adds. “The Super AT MOD gives Andy that nice chimey top end and that tube-amp-type growl and distortion because it uses JFET transistors. They’re the closest thing we have to tubes.”Creativity and Camaraderie
The Timmons/Keeley partnership is a testament to technology—and to a friendship that blossomed during the long, sometimes grueling playing/listening sessions that punctuated the development process.
Timmons is based in McKinney, Texas, about a three-hour drive from Keeley headquarters in Oklahoma City, Oklahoma. That proximity allowed for frequent visits to the Keeley shop and made it easier for Timmons and the Keeley team to work together on the successive HALO and AT MOD prototypes. “You’ve really got to be able to be in a room together and feel what’s happening,” Timmons says. “Because we were all in the same room, we were able to go beyond what we had ever envisioned. That’s the blessing of them being just a few hours away.”
“The initial inspiration for the Super AT MOD came from Timmons’ love of a classic Keeley mod for the Boss BD-2.”
A key member of the creative team was Aaron Pierce, artist relations guru at Keeley Electronics. Pierce was deeply involved in the Timmons/Keeley collaboration right from the beginning, and he helped jump-start the process of designing the Super AT MOD.
“During the two years that we were working on the HALO,” says Pierce, “we were always talking with Andy about what he was looking for in an overdrive. So, we were working on ideas for at least a few months before getting Andy back into the process. We had learned a lot about his preferences during the HALO development.”
Timmons greatly appreciates what Pierce brought to the undertaking. “I can’t stress enough: Aaron was really the third side in the triangle. It was so important to have his ears in the room. Even if I couldn’t articulate to Robert what I was hearing, Aaron was able to do it, because he could hear it and put it into words in a way that Robert could act on. Aaron was the perfect translator between Robert’s methodology and what I was going for.”
The HALO design journey took two full years, but thankfully the AT MOD’s development was relatively brisk—perhaps three or four months, and three visits from Timmons. On each visit, Keeley would offer hospitality by cooking for the crew. Keeley is well known among his friends as a fantastic cook.
“It took more than three sessions—probably about six meals together,” Keeley says as all three burst into laughter. “The food really does stand out,” adds Timmons. “We didn’t lose any weight during the sessions.”
Ultimately, the Super AT MOD benefited greatly from the spirit of friendship and shared passion. “I was able to be really demanding because they were willing to go down the path with me,” says a grateful Timmons. “Their willingness to be open and do things differently was the key. I’m lucky to find these cohorts in tone. We enjoy the process and hopefully that comes through in the final product.”Lasting Impact for All
Just don’t call them late for supper! The Keeley creative team assembles in Oklahoma City in February 2020 (left to right): Craighton Hale, Robert Keeley, Andy Timmons, Aaron Tackett, and Aaron Pierce.
Asked if the collaboration with Timmons has opened a new approach for future designs, Keeley answers emphatically: “Most certainly. I’m going to use the subtractive process and implement that design philosophy on future pedals. That’s one of the reasons it’s so rewarding working with Andy: developing more and more chops to get nuanced sounds.”
Pierce agrees: “Working with Andy makes us better on the engineering front and the manufacturing front. Every time we collaborate with him it pushes us on our technology, and we discover things that we never would’ve found without him.”
At the end of the process—and a bunch of great meals with the Keeley team—Timmons is thrilled with the results: the Super AT MOD overdrive delivers the tone and versatility he sought. “I haven’t had a pedal feel like this before. It has such a natural thing about it. The dynamic range just coming from the fingers is incredible. It’s the delicate, mild gain that I’ve been seeking for a long time. But if I want to crank it up, it has incredibly powerful full-on gain.”
You can hear Timmons putting the pedal to great use on his brand-new series of singles under the title Bitter Suites: The Outlier Nocturne. Beginning with the first one, “Here Lies The Heart,” the ongoing solo series features Timmons’ playing in a spacious, dynamic setting, inspired by the Super AT MOD’s tonal range. “That AT mode is what I needed. Since that pedal was created, I’ve gotten the next two tracks because this was the sound I was waiting for.” Timmons attests.
To learn more about the Super AT MOD pedal and Keeley Electronics, visit robertkeeley.com.
Timmons tests a prototype of the AT MOD with one of his Ibanez ATZ100 signature model guitars and a Mesa/Boogie Lonestar 2x12 combo at Keeley headquarters in Oklahoma City.
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Brent Mason is, of course, on of the most recorded guitarists in history, who helped define the sound of most ’90s country superstars. So, whether you know it or not, you’ve likely heard Mason’s playing.
Professional transcriber Levi Clay has done the deepest of dives into Brent Mason’s hotshot licks. At one point, he undertook the massive project of transcribing and sharing one of Mason’s solos every day for 85 or so days. Mason is, of course, on of the most recorded guitarists in history, who helped define the sound of most ’90s country superstars. So, whether you know it or not, you’ve likely heard Mason’s playing. Levi shares the insight he gleaned from digging deep, and he tells us what it was like when they shared a stage last year. Plus, Levi plays us some great examples of Mason’s playing.
For the first time ever, two guitar greats, John 5 and Richie Kotzen will be heading out on the road this year. The tour will launch October 16 and run through November, hitting markets across the U.S.
Find the full tour itinerary right plus a link for tickets & VIP, including additional dates featuring John 5 only. Reserved seating tickets will go on sale Friday May 16 though a fan presale will begin today at noon local time and fans are strongly encouraged to buy early to get the best seats.
Meet and Greets for both artists will be available. For John 5 please go to: https://john5store.com/collections/vip.
Today, John 5 also announces more details of his anticipated new album. Called The Ghost, it will be released October 10 and is led by the new track “Fiend,” featuring Kenny Aronoff.
John 5 continues running public tours this month for his Knights In Satan’s Service Museum of KISS Memorabilia in Los Angeles, California. Guided tours are open to the public for one month only (with a possible expansion). Current dates available are May 12-16, May 19-23 and May 27-30. Each will be led by John 5 himself who will provide tons of rich detail and answer any questions. Secure your place HERE.
JOHN 5 continues to tour with Mötley Crüe including an upcoming residency in Las Vegas in 2025.RICHIE KOTZEN &
JOHN 5 FALL 2025 TOUR
October 16 El Cajon, CA @ Magnolia
October 17 Riverside, CA @ Fox Performing Arts
October 18 Roseville, CA @ Goldfield Trading Post
October 19 San Jose, CA @ The Ritz
October 21 Phoenix, AZ @ Celebrity Theatre
October 22 Albuquerque, NM @ KiMo Theatre
October 24 Dallas, TX @ Granada Theater
October 25 Leander, TX @ The Haute Spot
October 27 New Orleans, LA @ House of Blues
October 28 Memphis, TN @ Minglewood Hall
October 29 Nashville, TN @ Fogg Street Lawn Club
October 30 Atlanta, GA @ Variety Playhouse
October 31 Orlando, FL @ House of Blues
November 1 Fort Lauderdale, FL @ Culture Room
November 2 Clearwater, FL @ Capitol Theatre
November 4 Richmond, VA @ The National
November 5 Leesburg, VA @ Tally Ho Theater
November 6 Patchogue, NY @ Patchogue Theatre
November 11 Glenside, PA @ Keswick Theatre
November 12 Derry, NH @ Tupelo Music Hall
November 13 Foxborough, MA @ Six String Grill & Stage
November 14 Stroudsburg, PA @ Sherman Theater
November 15 Lorain, OH @ Lorain Palace Theatre
November 16 Columbus, OH @ The King Of Clubs
November 17 Warrendale, PA @ Jergels
November 19 Wyandotte, MI @ District 142
November 20 Flint, MI @ The Machine Shop
November 21 Fort Wayne, IN @ Piere’s
November 22 St. Charles, IL @ Arcada Theatre
November 23 Belvidere, IL @ Apollo Theatre
November 25 Denver, CO @ Oriental Theater
November 29 Pioneertown, CA @ Pappy & Harriet's*
*John 5 only
AEROSMITH guitarist and songwriter JOE PERRY is set to return to the road for a series of August performances with THE JOE PERRY PROJECT. The 8-date run kicks off August 13 in Tampa, FL and wraps August 23 in Port Chester, New York, with an August 19 performance in PERRY’s Boston hometown (see the itinerary below). For the North American trek—which marks the first solo shows for PERRY this year—the legendary guitarist will be joined by his Aerosmith bandmates Brad Whitford (guitar) and Buck Johnson (keys), along with The Black Crowes’ Chris Robinson (vocals), and Stone Temple Pilots’ Robert DeLeo (bass), and Eric Kretz (drums).
“Well…it’s time to let the music do the talkin again,” PERRY says. “I’m really excited about the JPP line up this year!!!! Most of these guys played with me at The Roxy in L.A. at the debut event for my latest solo album [Sweetzerland Manifesto] in January 2018. They’re all busy as hell but thankfully they’re able to carve out some time for this run. And I’m not only lucky enough to have Brad Whitford onstage with me but Chris Robinson of The Black Crowes! [who sang ‘Fortunate One’ on Sweetzerland Manifesto MKII], Robert DeLeo and Eric Kretz from STP!!! and Buck Johnson who plays keys and sings with Aerosmith, the Hollywood Vampires, and is also a solo artist in his own right.”
For the shows, the Rock and Roll Hall of Fame inductee says “the set list is gonna include my fav JPP cuts, STP, Black Crowes, and with Brad we’ll be hitting the Aero hits and some deep cuts and then ya never know!!!! Gonna be a BLAST, and if you’ve ever been to one of my shows you know the words GARAGE BAND on STEROIDS come to mind! See you there!!!!”
DATE | LOCATION | VENUE |
Wednesday, August 13 | Tampa, FL | Seminole Hard Rock - Tampa |
Thursday, August 14 | Hollywood, FL | Seminole Hard Rock - Hollywood |
Saturday, August 16 | Toronto, ON | HISTORY |
Sunday, August 17 | Muskoka, ON | Kee to Bala |
Tuesday, August 19 | Boston, MA | Wang Theatre |
Wednesday, August 20 | Hampton Beach, NH | Hampton Beach Casino Ballroom |
Friday, August 22 | Mashantucket, CT | The Premier Theater at Foxwoods Resort Casino |
Saturday, August 23 | Port Chester, NY | Capitol Theatre |
A sample page from the author’s analog log.
Seasonal changes are tough on your acoustic. Here’s how you can take better care of your prized instrument.
As you read this, spring is in bloom in most of the US, or maybe it has been for some time. I’m timing this column specifically to ask acoustic guitarists, in this season of increasing humidity and comfortable conditions, to prepare for what’s coming. It’s never too soon, and time flies. Before you know it, we’ll be back to the maintenance phase and you might be blowing up the phones of your local guitar shops, luthiers, and techs. I’m here to encourage a decidedly old-school approach to preventative guitar maintenance, and yes, it starts now.
Why, you ask? Well, as the lead luthier at Acoustic Music Works, I can tell you that in my nearly 15 years in this position, this was the worst winter ever for preventable repairs on acoustic guitars. Fret sprout, bridge lifts, top sink, soundboard cracks, back cracks, loose binding, general malaise… These hit us very hard in the winter that spanned 2024 and 2025. Am I complaining? On the one hand, no. This is part of how we make our money. On the other hand, yes! Repair schedules related to dryness and humidity issues can stretch into weeks and even months, and nobody wants to be without their favorite instruments for that amount of time. With a little thoughtfulness, however, you might get through next winter (and every one thereafter) without hefty repair bills or time apart from your musical companion.
Our preparation is going to start with an unlikely but very important guitar accessory: the humble notebook. Plain, lined, grid, day planner… it doesn’t matter. We all need to actively participate in our instrument maintenance, and in my experience, fancy apps that track humidity via Bluetooth breed a kind of laziness, a feeling of safety that might prevent us from actually physically looking in on conditions. Better we keep an analog, well, log, so that we know where things stand, and I suggest checking in daily.
“This was the worst winter ever for preventable repairs on acoustic guitars.”
Track your relative humidity, both in the case and in the room where your instruments mostly reside, but also take notes on your action height, top deflection (StewMac has some great tips for measuring this) and anything related to playability that you believe you can observe empirically.
Dryness is the root cause of most guitar issues that manifest in the fall and winter months. Symptoms of dryness include sharp fret ends, falling action and dead frets, sunken top around the sound hole, and cracks and bridge lifts. With your trusty notebook, you’ll get a feel for the sensitivity level of your instrument, and that knowledge is power!
A few other basic implements will not only assist you in your observations, but may also satisfy your need to buy guitar-related things (at least for a minute). Getting quick and comfortable with a fret rocker is a great skill to have, and is invaluable in diagnosing buzzes due to high frets or frets that have come unseated due to dryness. A well-calibrated relief gauge might seem luxurious, but it can prevent you from making unnecessary or extreme truss rod adjustments. A string action gauge, or even a simple machinist’s rule or set of feeler gauges, will help you keep track of your action. Get a three-pack of hygrometers so you can average their readings, rather than depending on one.
Lest we forget: A guitar can not only be too dry, it can also be too wet. By beginning your maintenance diligence in the spring/summer, you’ll also be able to tell if your instrument is the victim of a too-humid environment. The signs of over-humidification are subtle: Your action may rise from a puffed-up top, and in extreme cases, glue joints could begin to fail. In my experience, an over-humidified guitar will suffer from dulled tone, almost like a sock in the sound hole. If you’re sensing a lack of clarity in your guitar all of a sudden, start with new strings. If it persists, it might be due to over-humidification, and you may want to introduce a desiccant to the case for a time. The more lightly built your guitar is, the more sensitive it will be to seasonal changes.
By getting into these habits early, you’ll be empowered by knowing your instrument more intimately. You’ll understand when and why changes in tone and playability might have occurred, and you’ll hopefully save on repair bills year-round. Feel free to reach out with any questions. Who knows? I might just send you a notebook with an AMW sticker on the cover!