Argentine builder Ezequiel Galasso demos the Kybalion—a solidbody built out of pine bookshelves from an old church and featuring exchangeable brass, ebony, and nylon bridge saddles.
The author dials in one of his 20-watt Sonzera amps, with an extension cabinet.
Knowing how guitar amplifiers were developed and have evolved is important to understanding why they sound the way they do when you’re plugged in.
Let’s talk about guitar amp history. I think it’s important for guitar players to have a general overview of amplifiers, so the sound makes more sense when they plug in. As far as I can figure out, guitar amps originally came from radios—although I’ve never had the opportunity to interview the inventors of the original amps. Early tube amps looked like radio boxes, and once there was an AM signal, it needed to be amplified through a speaker so you could hear it. I’m reasonably certain that other people know more about this than I do.
For me, the story of guitar amps picks up with early Fenders and Marshalls. If you look at the schematics, amplifier input, and tone control layout of an early tweed Fender Bassman, it’s clear that’s where the original Marshall JTM45 amps came from. Also, I’ve heard secondhand that the early Marshall cabinets were 8x12s, and the roadies requested that Marshall cut them in half so they became 4x12s. Similarly, 8x10 SVT cabinets were cut in half to make the now-industry-standard 4x10 bass cabinets. Our amp designer Doug Sewell and I understand that, for the early Fender amps we love, the design directed the guitar signal into half a tube, into a tone stack, into another half a tube, and the reverb would join it with another half a tube, and then there would be a phase splitter and output tubes and a transformer. (All 12AX7 tubes are really two tubes in one, so when I say a half-tube, I’m saying we’re using only the first half.) The tone stack and layout of these amps is an industry standard and have a beautiful, clean way of removing low midrange to clear up the sound of the guitar. I believe all but the first Marshalls came from a high-powered tweed Twin preamp (which was a 80-watt combo amp) and a Bassman power amp. The schematic was a little different. It was one half-tube into a full-tube cathode follower, into a more midrange-y tone stack, into the phase splitter and power tubes and output transformer. Both of these circuits have different kinds of sounds. What’s interesting is Marshall kept modifying their amps for less bass, more high midrange and treble, and more gain. In addition, master volume controls started being added by Fender and Marshall around 1976. The goal was to give more gain at less volume. Understanding these circuits has been a lifelong event for Doug and me.
Then, another designer came along by the name of Alexander Dumble. He modified the tone stack in Fender amps so you could get more bass and a different kind of midrange. Then, after the preamp, he put in a distortion circuit in a switchable in and out “loop.” In this arrangement, the distortion was like putting a distortion pedal in a loop after the tone controls. In a Fender amp, most of the distortion comes from the output section, so turning the tone controls changes the sound of the guitar, not the distortion. In a Marshall, the distortion comes before the tone controls, so when you turn the tone controls, the distortion changes. The way these amps compress and add harmonics as you turn up the gain is the game. All of these designs have real merit and are the basis of our modern tube–and then modeling—amplifiers.
Everything in these amps makes a difference. The circuits, the capacitor values and types, the resistor values and types, the power and output transformers, and the power supplies—including all those capacitor values and capacitor manufacturers.
I give you this truncated, general history to let you know that the amp business is just as complicated as the guitar business. I didn’t even mention the speakers or speaker cabinets and the artform behind those. But what’s most important is: When you plug into the amp, do you like it? And how much do you like it? Most guitar players have not played through a real Dumble or even a real blackface Deluxe Reverb or a 1966 Marshall plexi head. In a way, you’re trusting the amp designers to understand all the highly complex variations from this history, and then make a product that you love playing through. It’s daunting, but I love it. There is a complicated, deep, and rich history that has influenced and shaped how amps are made today.
Sublime, fronted by Jakob Nowell, son of late Sublime singer Bradley Nowell, are in the studio writing and recording new songs for an upcoming full-length album. This marks their first new album since 1996.
When not performing at various festivals across North America in 2024, front man Jakob Nowell immersed himself in the Sublime catalog and found a deep sense of connection to his late father. The band is tapping into the 90s nostalgia, writing and recording the new songs with powerhouse producing duo Travis Barker and John Feldmann, in addition to working with producer Jon Joseph (BØRNS). The first single will be released this Summer via their newly established label Sublime Recordings.
"I grew up on Sublime. ‘40oz. to Freedom’ changed the way I listened to music. I’m so honored to be working with the guys in Sublime. Creating music for this album has been so fun and exciting. Bradley comes through his son Jakob while writing in the studio and performing. Chills every day in the studio when he sings and play guitar. This is going to be really special." – Travis Barker
“Sublime has always been a huge influence on me and to be able work with the band has been inspirational and game changing…It has been a highlight of my life to work on such a seminal record with such talented people. I’m so grateful for this opportunity and to continue the legacy and keep it authentic to what they have historically done.” – John Feldmann
After Jakob Nowell’s debut as Sublime’s new front man at Coachella 2024, he and his uncles Bud Gaugh and Eric Wilson continued the momentum of this latest chapter of the band, performing at over 20 festivals and shows across North America by the end of last year. Additional highlights from 2024 include Sublime’s late-night television debut on The Tonight Show Starring Jimmy Fallon, a 4-song set on the Howard Stern Show and the band’s first top 10 hit on alternative radio since 1997 with their single “Feel Like That,” featuring the vocals of both Bradley Nowell and his son Jakob together.
2025 is shaping up to be an even busier year for the band, with a handful of headlining shows, high-profile festival appearances to support the release of the new album.
For more information, please visit sublimelbc.com.
Sublime 2025 Tour Dates
- April 5 – LIV Golf Miami – Miami, FL
- April 18 – Red Rocks Amphitheater – Morrison, CO
- May 3 – Beachlife Festival – Redondo Beach, CA
- May 16 – Welcome To Rockville – Daytona Beach, FL
- May 23 – BottleRock Napa Valley – Napa, CA
- May 25 – Boston Calling – Boston, MA
- June 14 – Vans Warped Tour – Washington, DC
- July 12 – 89.7 The River’s 30th Anniversary Show – Omaha, NE
- July 20 – Minnesota Yacht Club Festival – Saint Paul, MN
- September 14 – Sea.Hear.Now – Asbury Park, NJ
- September 19 – Shaky Knees Festival – Atlanta, GA
A pair of Fender amps and a custom-built Baranik helped the Boston band’s guitarist come back from a broken arm.
When Brandon Hagen broke his arm a few years ago, his life changed in an instant. He’d been fronting Boston indie rock outfit Vundabar since 2013, and suddenly, he was unable to do the things he’d built his life around. Recovery came, in part, in the form of a custom guitar prototype built by Mike Baranik of Baranik Guitars. Hagen deconstructed and rehabilitated his relationship to the 6-string on that instrument, an experience that led to Vundabar’s sixth LP, Surgery and Pleasure, released on March 7.
On tour supporting the record, the band appeared at Grimey’s in Nashville for a performance on March 11, and PG’s Chris Kies caught up with Hagen to hear about his journey and learn what tools the guitarist has brought on the road. As Hagen tells it, his setup is less about expertise and received wisdom, and more about “intuitive baby mode”—going with what feels and sounds good in the moment.
Brought to you by D’Addario.
An A1 B4
Hagen’s No. 1 is this Baranik B4, a custom job that he received two days before leaving for tour. Hagen’s arm was broken when Vundabar was playing a festival in California a couple years ago, and Baranik, a fan of the band, stopped in to see them. He offered to send a custom prototype to Hagen—who was new to the field of boutique guitars—and the B4 was born, borrowing from the Baranik B3 design used for Unknown Mortal Orchestra’s Ruban Nielson and the Hofner 176 played by Jamie Hince of the Kills. The guitar helped Hagen fall back in love with guitar as his arm healed.
Hagen was searching for Strat-style clarity and jangle but with a hotter sound, so Baranik put in Lindy Fralin P-90s in the neck and bridge positions, plus a sliding, unpotted gold-foil pickup in the middle, wound by Baranik himself. A wheel control on the lower bout beside the traditional pickup selector switch lets Hagen blend the pickup signals without outright switching them on or off. Along with traditional master volume and tone controls, the red button beside the bridge activates a Klon clone pedal built into the back of the guitar. Hagen used a Klon on every track on the new Vundabar record, so it made sense to have one at his fingertips, letting him step away from the pedalboard and still create dramatic dynamic differences.
Hagen uses Ernie Ball Slinky strings (.011s), a step up from the .10s he used to use; he was chasing some more low end and low mids in his sound. His guitars stay in standard tuning.
Jazz From Japan
Hagen also loves this 2009 Japan-made Fender Jazzmaster ’62 Reissue JM66, which splits the difference between classic Fender chime and a darker, heavier tone.
Blending Fenders
Hagen’s signal gets sent to both a Fender Hot Rod Deville and a Blues Junior. He likes to crank the Junior’s single 12" speaker for a nastier midrange.
Brandon Hagen's Board
Hagen runs from his guitar into a JHS Colour Box, which adds a bit of dirt and can be used to attenuate high or low frequencies depending on which room Vundabar is playing. From there, the signal hits a Keeley Compressor, EHX 2020 Tuner, EHX Pitch Fork, EHX Micro POG (which is always on with subtle octaves up and down to beef things up), Boss Blues Driver, Way Huge Swollen Pickle, MXR Carbon Copy (which is also always on), and a Boss DD-7—Hagen loves the sound of stacked delays.
Get premium spring reverb tones in a compact and practical format with the Carl Martin HeadRoom Mini. Featuring two independent reverb channels, mono and stereo I/O, and durable metal construction, this pedal is perfect for musicians on the go.
The Carl Martin HeadRoom Mini is a digital emulation of the beloved HeadRoom spring reverb pedal, offering the same warm, natural tone—plus a little extra—in a more compact and practical format. It delivers everything from subtle room ambiance to deep, cathedral-like reverberation, making it a versatile addition to any setup.
With two independent reverb channels, each featuring dedicated tone and level controls, you can easily switch between two different reverb settings - for example, rhythm and lead. The two footswitches allow seamless toggling between channels or full bypass.
Unlike the original HeadRoom, the Mini also includes both mono and stereo inputs and outputs, providing greater flexibility for stereo rigs. Built to withstand the rigors of live performance, it features a durable metal enclosure, buffered bypass for signal integrity, and a remote jack for external channel switching.
Key features
- Two independent reverb channels with individual tone and level controls
- Mono and stereo I/O for versatile routing options
- Buffered bypass ensures a strong, clear signal
- Rugged metal construction for durability
- Remote jack for external channel switching
- Compact and pedalboard-friendly design
HeadRoom Mini brings premium spring reverb tones in a flexible and space-savingformat—perfect for any musician looking for high-quality, studio-grade reverb on the go.
You can purchase HeadRoom Mini for $279 directly from carlmartin.com and, of course, also from leading music retailers worldwide.
For more information, please visit carlmartin.com.