
Though not the first, the Charlie Christian pickup was at the vanguard of the shift to electric guitars.
It’s easy to gripe about change, but us guitarists have always had to embrace new technology.
California has always been the place of dreams for young Americans: Hollywood, surf music, pop music, psychedelia, hot rods, biker culture, and glam metal. The Golden State’s only real pop-culture competition has traditionally been New York City, and we know that the beaches and forests are better on the Pacific side. Recently, California Governor Gavin Newsom signed an executive order requiring that, starting in 2035, all new passenger cars and light trucks sold in the state must be zero-emissions vehicles. Once again, Cali leads by example, and what once was unthinkable becomes reality. Strangely, this EV revolution reminds me of the emergence of the electric guitar.
The electric was born both out of a technological opportunity and a genuine need. Guitarists in orchestras and big horn-driven bands suffered from a volume deficit compared to the piercing tones of brass instruments. Even in smaller settings, the piano’s booming voice could easily bury the sound of a 6-string. As is traditional now, guitarists just wanted more volume, and electricity was the answer. Long before electric blues or rock, pioneering jazz guitarists like Tiny Grimes and Charlie Christian embraced the new tech. In doing so, they wrote the book on how guitarists could be standout soloists in any surrounding.
I’m old enough to remember thinking an electric guitar was weird, but somehow space-age cool. How did it work? Did you plug it into a wall socket, and it just performed like a table radio? It seems laughable now, but electric guitars were the target of derision from “serious” musicians because they were used in that new-fangled rock ’n’ roll, a decidedly low-brow form of entertainment. Electrics weren’t found in music schools either. Consigned as the vulgar musical cousin of the hot rod and motorbike, this naturally raised its appeal to some. The electric guitar was at the center of the burgeoning rock sound, so volume levels escalated with crowd sizes. But the transition wasn’t always smooth. As bands grappled for more and more decibels, big amp stacks and massive sound systems with power-hungry amps sometimes exceeded the capacity of the venue’s stage outlets. Eventually, the situation was sorted out, and even the smallest clubs put significant wiring upgrades in place. Festivals and tours sported massive piles of speaker cabinets to reach levels that dazzled the crowds.
If back in the day you had told me that I could play a gig with gear that could be stowed in the trunk of a mid-sized SUV, I would have considered you insane.
Later, something counterintuitive happened. Technology intervened again. Sound systems became smaller, lighter, and more efficient. Guitarists could play theaters with a 50-watt half-stack, then a 2x10 combo. Now, a band can play an arena without any amplifiers on stage. What a difference a couple decades can make.
Modern battery-powered portable systems can sound better than the piles of folded-horn cabinets bands used to haul around in a 24-foot box truck. If back in the day you had told me that I could play a gig with gear that could be stowed in the trunk of a mid-sized SUV, I would have considered you insane. But that’s the way the future always is. Some were terrified of the locomotive when it was invented, and otherwise intelligent people swore that humans could not travel faster than 50 miles per hour without dying.
We can have this mindset when it comes to musical instruments. I’ve been the biggest snob about vintage guitars since they were just called “used” gear. But I have to concede that there’s a lot to like about new instruments and modeling amplifiers. I have a digital pedal that is 90 percent of the way to my analog ideal but weighs a tiny fraction of a Leslie 147. When you don’t have the space (or the physical strength) to justify giant piles of gear, you begin to appreciate new technology.
That’s not to say I think that there aren’t trade-offs. Yes, you can stuff 5000 songs into your phone, or stream anything ever recorded, but when you listen to analog recordings on a proper sound system at full chat, it’s a whole other experience. When you stand next to a real rotary speaker you witness something that still hasn’t been bettered, but audiences don’t notice. I used to think that until you stood on a stage and felt the power of two 100-watt stacks, you hadn’t really lived. And so it goes. We move ahead with efficiency and convenience while sacrificing something that can’t always be measured—and we get used to it. As much as I yearn to pull those big amps out of storage and shake the walls, maybe I’ll just roll down the Pacific Coast Highway in an electric car listening to an old recording and enjoy the memory instead.
The two-in-one “sonic refractor” takes tremolo and wavefolding to radical new depths.
Pros: Huge range of usable sounds. Delicious distortion tones. Broadens your conception of what guitar can be.
Build quirks will turn some users off.
$279
Cosmodio Gravity Well
cosmod.io
Know what a wavefolder does to your guitar signal? If you don’t, that’s okay. I didn’t either until I started messing around with the all-analog Cosmodio Instruments Gravity Well. It’s a dual-effect pedal with a tremolo and wavefolder, the latter more widely used in synthesis that , at a certain threshold, shifts or inverts the direction the wave is traveling—in essence, folding it upon itself. Used together here, they make up what Cosmodio calls a sonic refractor.
Two Plus One
Gravity Well’s design and control set make it a charm to use. Two footswitches engage tremolo and wavefolder independently, and one of three toggle switches swaps the order of the effects. The two 3-way switches toggle different tone and voice options, from darker and thicker to brighter and more aggressive. (Mixing and matching with these two toggles yields great results.)
The wavefolder, which has an all-analog signal path bit a digitally controlled LFO, is controlled by knobs for both gain and volume, which provide enormous dynamic range. The LFO tremolo gets three knobs: speed, depth, and waveform. The first two are self-explanatory, but the latter offers switching between eight different tremolo waveforms. You’ll find standard sawtooth, triangle, square, and sine waves, but Cosmodio also included some wacko shapes: asymmetric swoop, ramp, sample and hold, and random. These weirder forms force truly weird relationships with the pedal, forcing your playing into increasingly unpredictable and bizarre territories.
This is all housed in a trippy, beautifully decorated Hammond 1590BB-sized enclosure, with in/out, expression pedal, and power jacks. I had concerns about the durability of the expression jack because it’s not sealed to its opening with an outer nut and washer, making it feel more susceptible to damage if a cable gets stepped on or jostled near the connection, as well as from moisture. After a look at the interior, though, the build seems sturdy as any I’ve seen.
Splatterhouse Audio
Cosmodio’s claim that the refractor is a “first-of-its-kind” modulation effect is pretty grand, but they have a point in that the wavefolder is rare-ish in the guitar domain and pairing it with tremolo creates some pretty foreign sounds. Barton McGuire, the Massachusetts-based builder behind Cosmodio, released a few videos that demonstrate, visually, how a wavefolder impacts your guitar’s signal—I highly suggest checking them out to understand some of the principles behind the effect (and to see an ’80s Muppet Babies-branded keyboard in action.)
By folding a waveform back on itself, rather than clipping it as a conventional distortion would, the wavefolder section produces colliding, reflecting overtones and harmonics. The resulting distortion is unique: It can sound lo-fi and broken in the low- to mid-gain range, or synthy and extraterrestrial when the gain is dimed. Add in the tremolo, and you’ve got a lot of sonic variables to play with.
Used independently, the tremolo effect is great, but the wavefolder is where the real fun is. With the gain at 12 o’clock, it mimics a vintage 1x10 tube amp cranked to the breaking point by a splatty germanium OD. A soft touch cleans up the signal really nicely, while maintaining the weirdness the wavefolder imparts to its signal. With forceful pick strokes at high gain, it functions like a unique fuzz-distortion hybrid with bizarre alien artifacts punching through the synthy goop.
One forum commenter suggested that the Gravity Well effect is often in charge as much the guitar itself, and that’s spot on at the pedal's extremes. Whatever you expect from your usual playing techniques tends to go out the window —generating instead crumbling, sputtering bursts of blubbering sound. Learning to respond to the pedal in these environments can redefine the guitar as an instrument, and that’s a big part of Gravity Well’s magic.
The Verdict
Gravity Well is the most fun I’ve had with a modulation pedal in a while. It strikes a brilliant balance between adventurous and useful, with a broad range of LFO modulations and a totally excellent oddball distortion. The combination of the two effects yields some of the coolest sounds I’ve heard from an electric guitar, and at $279, it’s a very reasonably priced journey to deeply inspiring corners you probably never expected your 6-string (or bass, or drums, or Muppet Babies Casio EP-10) to lead you to.
The author in the spray booth.
Does the type of finish on an electric guitar—whether nitro, poly, or oil and wax—really affect its tone?
There’s an allure to the sound and feel of a great electric guitar. Many of us believe those instruments have something special that speaks not just to the ear but to the soul, where every note, every nuance feels personal. As much as we obsess over the pickups, wood, and hardware, there’s a subtler, more controversial character at play: the role of the finish. It’s the shimmering outer skin of the guitar, which some think exists solely for protection and aesthetics, and others insist has a role influencing the voice of the instrument. Builders pontificate about how their choice of finishing material may enhance tone by allowing the guitar to “breathe,” or resonate unfettered. They throw around terms like plasticizers, solids percentages, and “thin skin” to lend support to their claims. Are these people tripping? Say what you will, but I believe there is another truth behind the smoke.
It’s the shimmering outer skin of the guitar, which some think exists solely for protection and aesthetics, and others insist has a role influencing the voice of the instrument. Builders pontificate about how their choice of finishing material may enhance tone by allowing the guitar to “breathe,” or resonate unfettered. They throw around terms like plasticizers, solids percentages, and “thin skin” to lend support to their claims. Are these people tripping? Say what you will, but I believe there is another truth behind the smoke.
Nitrocellulose lacquer, or “nitro,” has long been the finish of choice for vintage guitar buffs, and it’s easy to see why. Used by Fender, Gibson, and other legendary manufacturers from the 1950s through the 1970s, nitro has a history as storied as the instruments it’s adorned. Its appeal lies not just in its beauty but in its delicate nature. Nitro, unlike some modern finishes, can be fragile. It wears and cracks over time, creating a visual patina that tells the story of every song, every stage, every late-night jam session. The sonic argument goes like this: Nitro is thin, almost imperceptible. It wraps the wood like silk. The sound is unhindered, alive, warm, and dynamic. It’s as if the guitar has a more intimate connection between its wood and the player's touch. Of course, some call bullscheiße.
In my estimation, nitro is not just about tonal gratification. Just like any finish, it can be laid on thick or thin. Some have added flexibility agents (those plasticizers) that help resist damage. But as it ages, old-school nitro can begin to wear and “check,” as subtle lines weave across the body of the guitar. And with those changes comes a mellowing, as if the guitar itself is growing wiser with age. Whether a tonal shift is real or imagined is part of the mystique, but it’s undeniable that a nitro-finished guitar has a feel that harkens back to a romantic time in music, and for some that’s enough.
Enter the modern era, and we find a shift toward practicality—polyurethane and polyester finishes, commonly known as “poly.” These finishes, while not as romantic as nitro, serve a different kind of beauty. They are durable, resilient, and protective. If nitro is like a delicate silk scarf, poly is armor—sometimes thicker, shinier, and built to last. The fact that they reduce production times is a bonus that rarely gets mentioned. For the player who prizes consistency and durability, poly is a guardian. But in that protection, some say, comes a price. Some argue that the sound becomes more controlled, more focused—but less alive. Still, poly finishes have their own kind of charm. They certainly maintain that showroom-fresh look, and to someone who likes to polish and detail their prized possessions, that can be a big plus.
“With those changes comes a mellowing, as if the guitar itself is growing wiser with age.”
For those seeking an even more natural experience, oil and wax finishes offer something primal. These finishes, often applied by hand, mostly penetrate the wood as much as coating it, leaving the guitar’s surface nearly bare. Proponents of oil and/or wax finishes say these materials allow the wood to vibrate freely, unencumbered by “heavy” coatings. The theory is there’s nothing getting in the way—sort of like a nudist colony mantra. Without the protection of nitro or poly, these guitars may wear more quickly, bearing the scars of its life more openly. This can be seen as a plus or minus, I imagine.
My take is that finishes matter because they are part of the bond we have with our instruments. I can’t say that I can hear a difference, and I think a myth has sprouted from the acoustic guitar world where maybe you can. Those who remove their instrument’s finish and claim to notice a difference are going on memory for the comparison. Who is to say every component (including strings) went back together exactly the same? So when we think about finishes, we’re not just talking about tone—we’re thinking about the total connection between musician and instrument. It’s that perception that makes a guitar more than just wood and wire. The vibe makes it a living, breathing part of the music—and you.
Featuring a preamp and Dynamic Expansion circuit for punch and attack, plus switchable amp simulations.
"Like a missile seeking its target, Heatseeker will give you the explosive sound of rock! Inspired directly from the gear setup used by Angus Young,it features the most important sonic elements to match the tone of the short-pants-rock-God.
It’s no secret that a major role to his sound, along with the Marshall-brick walls, played one of the first wireless systems for guitar that quickly became a classic among guitar greats, the Schaffer Vega Diversity System."
The preamp along with the Dynamic Expansion circuit found in the wireless transmitter/receiver gave it its distinct sound. Besides boosting the signal, the preamp tightens up lower frequencies and slightly accentuates mid frequencies while the Dynamic Expansion circuit enhances the dynamic response and harmonics of the signal giving punch and attack to ensure that it will cut through the mix. Instead of opting for a prefix setting for the Dynamic Expansion circuit as found in the original unit, we have re-imagined our version with the enhanced knob on the Heatseeker to have more control over the guitar tone’s dynamic response. Setting it around 10 o‘clock is a good starting point to add some extra sparkle. Max it out to bring back to life even the most dull and colorless sounds.
Utilizing an all-analog JFET circuit, running on 27 volts via an internal voltage boost (DO NOT plug higher than 9V DC power supply), we have captured the tone and feel of three British tube amplifiers, synonymous with the sound of rock and roll, with an excellent clean-to-mean dynamic response. With the flip of a toggle switch, you can capture the sound and feel of a JTM45, 1959 Super Lead, or JMP 2203. A smart switching circuit follows the signal path and respective gain stages tuned for each amp and combines them with an actual Marshall style EQ and power amp simula-tion circuit for thundering rock tones. Angus Young usually plugs into Channel 1 or High Treble input of his JTM45s and Super Leads so we opted for that sound when we started visualizing Heatseeker on the drawing board. We have also extended the range of the presence control beyond the original so that the user will be able to match the pedal to any amp or gear setup. The master volume offers plenty of output so that you can also use the pedal as a preamp and plug it into a clean power amp or straight to your DAW. Note that the pedal doesn’t feature any speaker simulation circuit so we recommend using a separate hardware or software guitar speaker simulation when going direct to DAW or a full-range speaker.
A new feature to our booster/drive + amp-in-a-box line of pedals, recreating legendary sounds, is the switchable WoS (Wall of Sound) circuit. We have carefully tuned this circuit at the output of the AMP section of the Heatseeker to open up the soundstage by increasing the output, adding thundering lows, and thickening high mid frequencies. Imagine standing in front of a wall loaded with Marshall amp heads and 4x12 speaker cabinets, grabbing your SG, and hitting a chord. You will be blown away by the sound projection! In combination with the tube power amp simulation and the enhanced circuit of the right section, we’ve made sure that the pick attack will be as dynamic as it gets, so¥er picking will produce clean and slightly crunchy sounds, and hard picking will give explosive distorted sounds! While primarily designed for Angus Young sounds, Heatseeker will definitely open the door to countless other guitar-great tones that use these Marshall amps and/or the Schaffer Vega Diversity System. Think of KISS, Peter Frampton, and Van Halen to name a few.
Like our other dual overdrive/amp-in-a-box designs, Heatseeker features a passive effects loop to give you the option to connect your beloved pedals between the preamp/enhancer and amp-in-a-box circuit or use the two sections as separate and independent effects when using an external bypass switcher/looper. SND is the output of the BOOST/ENHANCE section, RTN is the input of the AMP section. SND is connected to RTN when no instrument jacks are inserted in the effects loop. Note that all pedals inserted in the passive effects loop are still in the signal chain when any or both sections of the Heatseeker are in bypass mode.
Heatseeker features a power-up bypass/engage pre-set function for the footswitches. You can change the default function by holding down the footswitch(es) during power-up. That way you can select which state your pedal will go to when you plug the power supply. This function comes in especially handy to people who use remote pedal switchers/loopers as they only set the state of the pedal once and then operate from the controller.
Street/MAP Price: $279
For more information, please visit crazytubecircuits.com.
Creed extend their sold-out Summer of ’99 Tour with 23 additional dates.
Produced by Live Nation, the dates begin July 9 at Rupp Arena in Lexington, KY and wrap August 20 at the Scotiabank Saddledome in Calgary, AB with support from 3 Doors Down, Daughtry, Mammoth WVH and Big Wreck. *Check individual dates for lineup in each market.
When it kicked off in 2024, The Summer of ’99 Tour quickly became “one of the most anticipated tours of the summer” (USA Today) and “one of the hottest rock tickets of the year” (Billboard) for a return that “may be something this industry has never seen” (Pollstar). To date, CREED’s Scott Stapp, Mark Tremonti, Brian Marshall, and Scott Phillips have performed over 60 sold-out concerts throughout North America, selling over 800,000 tickets and breaking venue records in multiple markets.
“Thirty years in, it’s been a blessing to pick up right where we left off with longtime fans and to meet the next generation for the first time. It’s been an incredible ride, and we aren’t done, so here’s to a ‘Summer’ that never ends. We’ll see you on the road,” states Scott Stapp.
Creed will close out 2024 with shows in Las Vegas, NV (Dec. 30 & Dec. 31) and their newly announced dates in 2025 will follow their already sold-out Summer of ’99 and Beyond cruise sailing April 9– April 13 from Miami to Nassau with Sevendust, Hoobastank, Lit, Hinder, Fuel and more. Also in April, the band - whose audience has included fans of mainstream, rock, and country for over 25 years - will perform at Stagecoach.
For more information on all Creed tour dates as well as the opportunity to purchase entry into Mark Tremonti’s guitar clinic can be found at https://creed.com.
Tour Dates
CREED: SUMMER OF ‘99 TOUR 2025 DATES:
3DD – 3 Doors Down / D – Daughtry / BW – Big Wreck / MWVH – Mammoth WVH
Wed Jul 09 | Lexington, KY | Rupp Arena – 3DD/MWVH
Fri Jul 11 | Syracuse, NY | Empower Federal Credit Union Amphitheater at Lakeview – 3DD/MWVH
Sat Jul 12 | Camden, NJ | Freedom Mortgage Pavilion – 3DD
Tue Jul 15 | Wantagh, NY | Northwell at Jones Beach Theater – D/MWVH
Wed Jul 16 | Scranton, PA | The Pavilion at Montage Mountain – D/MWVH
Sun Jul 20 | Columbus, OH | Schottenstein Center – 3DD/MWVH
Tue Jul 22 | Hartford, CT | Xfinity Theatre – 3DD/MWVH
Thu Jul 24 | Charleston, SC | Credit One Stadium – 3DD/MWVH
Sat Jul 26 | New Orleans, LA | Smoothie King Center – 3DD/MWVH
Sun Jul 27 | Memphis, TN | FedExForum – 3DD/MWVH
Tue Jul 29 | Wichita, KS | INTRUST Bank Arena – D/MWVH
Fri Aug 01 | Lincoln, NE | Pinnacle Bank Arena – D/MWVH
Sat Aug 02 | Ridgedale, MO | Thunder Ridge Nature Arena – D/MWVH
Mon Aug 04 | Albuquerque, NM | Isleta Amphitheater – D/MWVH
Wed Aug 06 | Chula Vista, CA | North Island Credit Union Amphitheatre – D/MWVH
Thu Aug 07 | Palm Desert, CA | Acrisure Arena at Greater Palm Springs – 3DD/MWVH
Sat Aug 09 | Mountain View, CA | Shoreline Amphitheatre – 3DD/MWVH
Sun Aug 10 | Stateline, NV | Lake Tahoe Outdoor Arena at Harveys – 3DD/MWVH (Not a Live Nation date)
Wed Aug 13 | Ridgefield, WA | RV Inn Style Resorts Amphitheater – 3DD/MWVH
Thu Aug 14 | Auburn, WA | White River Amphitheatre – 3DD/MWVH
Sat Aug 16 | Vancouver, BC | Rogers Arena – BW/MWVH
Tue Aug 19 | Edmonton, AB | Rogers Place – BW/MWVH
Wed Aug 20 | Calgary, AB | Scotiabank Saddledome – BW/MWVH
Previously Announced CREED Dates:
Sat Dec 28 | Durant, OK | Choctaw Casino & Resort (Sold Out)
Mon Dec 30 | Las Vegas, NV | The Colosseum
Tue Dec 31 | Las Vegas, NV | The Colosseum
Apr 9 – Apr 13 | Miami – Nassau | Summer of ’99 and Beyond Cruise (Sold Out)
Sat Apr 26 | Indio, CA | Stagecoach