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 wavefolders are 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.
An overdrive and mangled fuzz that’s a wolf in a maniacal, rabid wolf’s clothing.
Invites new compositional approaches to riffs and solos. Gray Channel distortion is versatile and satisfying. Unpredictable.
Unpredictable. Footswitches for distortion and fuzz are quite close.
$199
Fuzz can be savored in so many ways. It can be smooth. It can be an agent of chaos. But it can also be a trap. In service of mayhem, it can be a mere noise crutch. Smooth, classy, “tasty” fuzz, meanwhile, can lead to dull solos crafted as Olympian demonstrations of sustain. To touch the soulful, rowdy essence of fuzz, it’s good to find one that never lets you get quite comfortable. The EarthQuaker Devices Gary, a two-headed distortion/overdrive and rabid, envelope-controlled square-wave fuzz designed with IDLES’ Lee Kiernan, is a gain device in this vein.
Gary is not exclusively a destruction machine. Its distortion/overdrive section is a very streamlined take on EarthQuaker’s Gray Channel, a versatile DOD 250-derived double distortion. Like any good circuit of the 250 ilk, Gary’s hard clipping OD/distortion section bites viciously in the high- and high-mid frequencies, supported by a tight, punchy low-mid output. You can play anything from balanced M.O.R. studio crunch to unhinged feedback leads with this side of Gary. But it’s the envelope-triggered pulse-width fuzz—which most of us will hear as a gated fuzz, in many instances—that gives the Gary its werewolf duality. Though practice yields performance patterns that change depending on the instrument and effects you use around the Gary, its fuzz ultimately sputters and collapses into nothingness—especially when you throw a few pitch bends its way. The cut to silence can be jarring, but also compels a player to explore more rhythmic leads and choppy riffs that would sound like sludge with a Big Muff. The Gary’s unpredictable side means it won’t be for everybody, but its ability to span delicioso distortion and riotous splatter fuzz in a single unit is impressive.
EarthQuaker Devices Gary Automatic Pulse Width Modulation Fuzz/Overdrive Pedal
Guest columnist Dave Pomeroy, who is also president of Nashville’s musicians union, with some of his friends.
Dave Pomeroy, who’s played on over 500 albums with artists including Emmylou Harris, Elton John, Trisha Yearwood, Earl Scruggs, and Alison Krauss, shares his thoughts on bass playing—and a vision of the future.
From a very young age, I was captivated by music. Our military family was stationed in England from 1961 to 1964, so I got a two-year head start on the Beatles starting at age 6. When Cream came along, for the first time I was able to separate what the different players were doing, and my focus immediately landed on Jack Bruce. He wrote most of the songs, sang wonderfully, and drove the band with his bass. Playing along with Cream’s live recordings was a huge part of my initial self-training, and I never looked back.
The electric bass has a much shorter history than most instruments. I believe that this is a big reason why the evolution of bass playing continues in ways that were literally unimaginable when it began to replace the acoustic bass on pop and R&B recordings. Players like James Jamerson, Joe Osborn, Carol Kaye, Chuck Rainey, and David Hood made great songs even better with their bass lines, pocket, and tone. Playing in bands throughout my teenage years, I took every opportunity I could to learn from musicians who were more experienced than I was. Slowly, I began to understand the power of the bass to make everyone else sound better—or lead the way to a train wreck! That sense of responsibility was not lost on me. As I continued to play, listen, and learn, a gradual awareness of other elements came to the surface, including the three Ts: tone, timing, and taste.
I was ready to rock the world with busy lines and bass solos when I moved to Nashville in the late ’70s, and I was suddenly transported into the land of singer-songwriters. It was a huge awakening when I heard the lyrics of artists like Guy Clark, whose spare yet powerful stories and simple guitar changes opened up a whole new universe in reverse for me. It was a reset for sure, but gradually I found ways to combine my earlier energetic approach in different ways. Playing what’s right for a song is a very subjective thing.
“If the song calls for you to ramp up the energy and lead the way like Chris Squire, Bootsy Collins, Geddy Lee, Sting, Flea, Justin Chancellor, or so many others, trust yourself and go for it.”
Don Williams, whom I worked with for many years, was known as a man of few words, but he gave me some of the best musical advice I ever received. I had been with him for just a few months when he pulled me aside one night after a show, and quietly said, “Dave, you don’t have to play what’s on the records, just don’t throw me off when I’m singing.” In other words: It’s okay to be creative, but listen to what’s going on around you. I never forgot that lesson.
As I gradually got into recording work, in an environment where creativity is combined with efficiency and experimentation is sometimes, but not always, welcome, I focused on tone as a form of expression, trying to make every note count. As drum sounds got much bigger during the ’80s, string bass was pretty much off the table as an option in most situations. Inspired by German bassist Eberhard Weber, I bought an electric upright 5-string built by Harry Fleishman a few years earlier. That theoretically self-indulgent purchase gave me an opportunity to carve out a tone that would work with both big drums and acoustic instruments. It gave me an identifiable sound and led to me playing that bass on records with artists like Keith Whitley, Trisha Yearwood, Alison Krauss, Emmylou Harris, and the Chieftains.
In a world of constantly evolving and merging musical styles, the options can be almost overwhelming, so it’s important to trust yourself. Ultimately, you are making a series of choices every time you pick up the instrument. Whether it’s pick versus fingers versus thumb, or clean versus overdrive versus distortion, and so on … you are the boss of your role in the song you are playing. When the sonic surroundings you find yourself in change, so can you. It’s all about listening to what is going on around you and finding that sweet spot where you can bring the whole thing together while not attracting too much attention.
On the other hand, if the song calls for you to ramp up the energy and lead the way like Chris Squire, Bootsy Collins, Geddy Lee, Sting, Flea, Justin Chancellor, or so many others, trust yourself and go for it. Newer role models like Tal Wilkenfeld, Thundercat, and MonoNeon have raised the bar yet again. The beauty of it all is that the bass and its role keep evolving.
Right now, I guarantee there are young bassists of all descriptions we have not yet heard who are reinventing the bass and its role in new ways. That’s what bass players do—we are the glue that ties music together. Find your power and use it!
A satin finish with serious style. Join PG contributor Tom Butwin as he dives into the PRS Standard 24 Satin—a guitar that blends classic PRS craftsmanship with modern versatility. From its D-MO pickups to its fast-playing neck, this one’s a must-see.
PRS Standard 24 Satin Electric Guitar - Satin Red Apple Metallic
A reverb-based pedal for exploring the far reaches of sound.
Easy to use control set. Wide range of sounds. Crush control is fun to explore. Filter is versatile.
Works best as a stereo effect, which may limit some players.
$299
Old Blood Noise Endeavors Dark Star Stereo
oldbloodnoise.com
The Old Blood Dark Star Stereo (DSS) is one of those pedals that lives beyond simple effect categorization. Yes, it’s a digital reverb. But like other Old Blood designs, it’s such a feature-rich, creative take on that effect that to think of it as a reverb feels not only imprecise but unfair.
The Old Blood Dark Star Stereo (DSS) is one of those pedals that lives beyond simple effect categorization. Yes, it’s a digital reverb. But like other Old Blood designs, it’s such a feature-rich, creative take on that effect that to think of it as a reverb feels not only imprecise but unfair.
In this case, reverb describes how the DSS works more than how it sounds. I’ve come to think of this pedal as a reverb-based synthesizer, where reverb is the jumping-off point for sonic creation. As such, the sounds coming out of the Dark Star can be used as subtle sweetener or sound design textures, opening up worlds that might otherwise be unreachable.
Reverb and Beyond
Functionally speaking, the DSS starts with reverb and applies a high-/low-pass filter, two pitch shifters, each with a two-octave range in each direction, plus bit-crushing and distortion. Controls for lag (pre-delay), multiply (feedback), and decay follow, with mini knobs for volume, mix, and spread. Additional control features include presets, MIDI functionality, plus expression and aux control.
The DSS can be routed in mono, stereo, or mono-in/stereo-out. Both jacks are single TRS, and it’s easy to switch between settings by holding down the bypass switch and selecting via the preset button.
Although it sounds great in mono, stereo is where this iteration of the Dark Star—which follows the mono Dark Star and Dark Star V2—really comes alive. Starting with the filter, both pitch shifters, and crush knobs at noon—all have center detents—affords the most neutral settings. The result is a pad reverb, as synthetic as but less sparkly than a shimmer. The filter control is a fine way to distinguish clean and effect signals. In low-pass mode, the effect signal can easily get dark and spooky while maintaining fidelity and without getting murky. On the other end, high-pass settings are handy for refining those reverb pads and keeping them from washing out the clarity of the clean signal.
Lower fidelity is close at hand when you want it. The crush control, when turned counterclockwise, reduces the bit rate of the effect signal, evoking all kinds of digitally compromised sounds, from early samplers to cell phones, depending on how you flavor it. Counterclockwise applies distortion to the reverb signal. There’s a lot to explore within the wide ranges of the two pitch controls, too. With a four-octave range, quantized in half steps, the combinations can be extreme, and Dark Star takes on a life of its own.
Formless Reflections of Matter
The DSS is easy to get acquainted with, especially for a pedal with so many features, 10 knobs, and two footswitches. I quickly got a feel for the reverb itself at the most neutral filter and pitch settings, where I enjoyed the weight a responsive, textural pad lent to everything I played.
With just the filter and crush controls, there’s plenty to explore. Sitting in the sweet spot between a pair of vintage Fenders, I conjured a Twin Peaks-inspired hazy fog to accompany honeyed diatonic arpeggios, slowly filtering and crushing that sound into a dark, evil low-end whir as chords leaned toward dissonance. Eventually, I cranked the high-pass filter, producing an early MP3-in-a-good-way “shhh” that was fine accompaniment to sparser voicings along my fretboard. It was a true sonic journeyThe pitch controls increase possibilities for both ambience and dissonance. Simple tweaks push the boundaries of possibility in exponentially deeper directions. For more subtle thickening and accompaniment sounds, adding octaves, which are easy to tune by ear, offers precise tone sculpting, dimension, and a wider frequency range. Hearing simple harmonic ideas plucked against celeste- and organ-like reverberations kept me in the Harold Budd and Brian Eno space for long enough to consider new recording projects.
There is as much fun to be had at the highest feedback settings on the DSS. Be forewarned: Spend too much time there and you might need a name for your new ambient band. Cranking the multiply and decay knobs, I’d drop in a few notes, or maybe just a chord, and get to work scanning the pitch knobs and sculpting with the filter. Soon, I conjured bold Ligeti-inspired orchestral sounds fit for a guitar remix of 2001: A Space Odyssey.
The Verdict
The Dark Star Stereo strikes a nice balance between deep control, a wide range of sonic rewards, playability, and an always-sounds-great vibe. The controls are easy to use, so it doesn’t take long to get in the zone, and once you do, there’s plenty to explore. Throughout my time with the DSS, I was impressed with its high-fidelity clarity. I attribute that to the filter, which allows clean and reverb signals to perform dry/wet balance and EQ functions. That alone encouraged more adventurous and creative exploration. Though not every player needs this kind of tone tool, the DSS is a must-check-out effect for anyone serious about wild reverb adventures, and it’s simple and intuitive enough to be a good fit for anyone just starting exploration of those zones. However you come to the Dark Star, it’s a unique-sounding pedal that deserves attention. PG
