Boss' Serial GK System is designed to be a versatile product that elevates guitar and bass synthesis into a new age of playability and creative range.
Driven by the newly developed Serial GK digital interface, the advanced ZEN-Core engine in the GM-800 unlocks any sound imaginable—from acoustic instruments to classic and modern synths—while high-performance DSP delivers tracking stability and expressive scope never before possible. Users can also expand the GM-800 experience with a growing selection of ZEN-Core content on Roland Cloud. In addition, BOSS has released a variety of complementary products for the GM-800 and Serial GK system, including GK-5 and GK-5B Divided Pickups for guitar and bass, BGK-15 and BGK-30 connection cables, and GKC-AD and GKC-DA GK Converters for interfacing with classic 13-pin GK products.
GM-800 Guitar Synthesizer
Boss and its parent company Roland have been the worldwide leaders in guitar synthesizer innovation for nearly five decades, beginning with the revolutionary GR-500 system in 1977. Expanding and elevating the concepts behind many historic Roland GR products, the GM-800 provides guitar and bass players with cutting-edge creative tools and access to sounds typically only available with keyboard-based instruments.
The GM-800 is built around the expandable ZEN-Core Synthesis System, the sound source found in professional Roland products like the JUPITER-X and FANTOM keyboards and ZENOLOGY software synthesizer. ZEN-Core combines modern PCM synthesis and advanced modeling to provide an infinite playground for sonic discovery. With over 1200 Tones, GM-800 users can play everything from pianos, organs, and orchestral instruments to classic Roland synth sounds like the JUPITER-8, JUNO-106, and many others.
The GM-800 features an intuitive workflow based around Scenes, which contain four Tone parts, a Rhythm part, and a vast selection of synthesis parameters, effects, pitch settings, and sensitivity adjustments. Users can layer Tones to create combined voices or assign Tones to individual strings, such as a bass sound on the low strings and a piano or sax sound on the high strings. It’s also possible to assign Tones to specific fret ranges, a powerful new feature made possible with the GM-800’s advanced pitch detection.
The GM-800 supports an ever-growing range of creative options through Roland Cloud, including ZEN-Core Sound Packs, Wave Expansions, and more. A free Roland Account provides access to essential Roland Cloud services, with additional content available via three paid membership levels. All plans start with a free 30-day Ultimate trial to experience everything Roland Cloud has to offer.
The streamlined GM-800 flows smoothly from desktop operation to installation on an advanced pedalboard. There are four assignable footswitches, plus two external control jacks that each support up to two footswitches or an expression pedal. MIDI I/O is also included for interfacing with other synthesizers and MIDI equipment.
Via USB, users can craft Scenes in detail from their computer using the Boss Tone Studio software for the GM-800. It’s also possible to capture GM-800 sounds as audio tracks in a DAW and use the Guitar to MIDI function to play software-based instruments and hardware sound modules.
GK-5 and GK-5B Divided Pickups
The GK-5 (guitar) and GK-5B (bass) are user-installable pickups designed to drive the advanced Serial GK digital interface in the GM-800. They feature a secure, space-saving connection with a lower profile than previous GK products. The GK-5 works with most standard six-string guitars with steel strings. The GK-5B supports most bass guitars with four, five, or six strings, and the pickup’s internal sensors can be adjusted to accommodate different bridge spacings.
BGK-15 and BGK-30 Serial GK Cables
The BGK-15 (15 ft./4.5 m) and BGK-30 (30 ft./9 m) cables are specially designed for optimum performance with the GK-5/GK-5B and the Serial GK system. Built with premium materials, they feature a flexible design with a woven outer jacket that provides easy handling and rugged durability.
GKC-AD and GKC-DA GK Converters
The GKC-AD and GKC-DA provide easy integration between the new Serial GK system and the analog 13-pin GK interfaces found in earlier guitar synth and modeling products from Boss and Roland. The GKC-AD allows users to drive the Serial GK input on the GM-800 from a Roland GK-3/GK-3B Divided Pickup or an instrument equipped with a 13-pin GK output. With the GKC-DA, users can drive 13-pin GK products such as the Boss SY-1000 or GP-10 from a GK-5/GK-5B pickup or the Serial GK output of the GM- 800.
The new Boss GM-800 and GK system will be available in the U.S. beginning in August as follows: GM-800 $749.99, GK-5 $249.99, GK-5B $299.99, GKC-AD $199.99, GKC-DA $199.99, BGK-15 $49.99, BGK-30 $69.99.
For more information, please visit boss.info.
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Effects Bakery MECHA-PAN BAKERY Series MECHA-BAGEL OVERDRIVE
Konnichiwa, guitar lovers! 🎸✨
Are you ready to add some sweetness to your pedalboard? Let’s dive into the adorable world of the Effects Bakery Mecha-Pan Overdrive, part of the super kawaii Mecha-Pan Bakery Series!
🍩 Sweet Treats for Your Ears! 🍩
The Mecha-Pan Overdrive is like a delicious bagel for your guitar tone, but it’s been upgraded to a new level of cuteness and functionality!
Effects Bakery has taken their popular Bagel OverDrive and given it a magical makeover. Imagine your favorite overdrive sound but with more elegance and warmth – it’s like hugging a fluffy cat while playing your guitar!
It would have been easy for Wampler to simply make a Mostortion clone and call it a day, but they added some unique twists to the Mofetta pedal. While the original Mostortion had a MOSFET-based op amp, it actually used clipping diodes to create its overdrive. The Mofetta is a fairly accurate replica and includes that circuitry, but also has a toggle switch for texture, which lets you choose between the original-style diode-based clipping in the down position and multi-cascaded MOSFET gain stages in the up position.
Luscious Low Gain and Meaty Mid-Gain
The Mofetta’s control panel is very straightforward and conventional with knobs for bass, mids, treble, level, and gain. The original Mostortion was revered for its low-gain tone and is now popular among Nashville session guitarists. Wampler’s tribute captures that edge-of-breakup vibe perfectly. I enjoyed using the pedal with the gain on the lower side, around 9 o’clock, where I heard and felt slight compression that gave single notes a smooth and silky feel. I particularly enjoyed the tone-thickening the Mofetta lent to my Ernie Ball Music Man Axis Sport’s split-coil sound as I played pop melodies and rootsy, triadic rhythm guitar figures. The Mofetta has expansive headroom, and as a result there’s a lot of space in which you can find really bold, cutting tones without muddying the waters too much. Even turning the gain all the way off yields a pleasing volume bump that would work well in a clean boost setting.
There’s a lot of space in which you can find really bold, cutting tones without muddying the waters too much.
Switching the texture switch up engages the MOSFET section, introducing cascading gain stages that elevate the heat and add flavor the original Mostortion didn’t really offer. Classic rock and early metal are readily available via the MOSFET setting. If you need to stretch out to modern metal sounds, the Mofetta probably isn’t the pedal for you. Again, the original Mostortion was, first and foremost, a low-to-mid-gain affair, so unless you’re using it as a boost with a high-gain amp, the Mofetta is not really a vehicle for extreme sounds.
One of the Mofetta’s real treats is its responsiveness. Even at higher gain settings the Mofetta is very touch sensitive. You can tap into a wide range of dynamic shading just by varying the strength of your pick attack. I enjoyed playing fast, ascending scalar passages, picking with a medium attack then really slamming it hard when I hit a high climactic note, to get the guitar to really scream.
The Verdict
Wampler is a reliably great builder who creates pedals with a purpose. I own two of his pedals, the Dual Fusion and the Pinnacle, and both are really exceptional units. The Mofetta captures the essence of the Mostortion and makes it available at an accessible price. But even if you’ve never heard or played an original Mostortion, you’ll appreciate the truly versatile EQ, touch sensitivity, and the bonus texture switch, which expands the Mofetta’s range into more aggressive spaces. The wealth of dirt boxes on the market today can make a player jaded. But Wampler pushed into a relatively unique, satisfying, and interesting place with the Mofetta.
Filthy, saturated fuzz is a glorious thing, whether it’s the writ-large solos of Big Brother and the Holding Company’s live “Ball and Chain,” the soaring feedback and pure crush of Jimi Hendrix’s “Foxy Lady,” or the sandblasted rhythm textures of Queens of the Stone Age’s “Paper Machete.” It’s also a Wayback Machine. Step on a fuzz pedal and your tone is transported to the ’60s or early ’70s, which, when it comes to classic guitar sounds, is not a bad place to be.
Catalinbread’s StarCrash is from their new ’70s collection, so the company is laying its Six Million Dollar Man trading cards on the table—upping the ante on traditional fuzz with more controls and, according to the company’s website, a little more volume than the average fuzz pedal, while still staying in the traditional Fuzz Face lane.
The Howler’s Viscera
Arbiter Electronics made the first Fuzz Face in 1966. The StarCrash is inspired by that 2-transistor pedal, but benefits from evolution, as did almost all fuzz pedals in the ’70s, when the standard shifted from germanium to silicon circuitry to improve the consistency of the effect’s performance. The downside is that germanium is gnarlier to some ears, and silicon transistors don’t respond as well to adjustments made via a guitar’s volume control.
While Fuzz Faces have only two knobs, volume and fuzz, the silicon StarCrash has three: volume, bias, and low-cut. Catalinbread’s website explains: “We got rid of that goofy fuzz knob. We know that 95 percent of all players run it dimed, and the remaining 5 percent use their guitar’s volume knob to rein it in.”
I suspect there are plenty of players who, like me, do adjust the fuzz control on their pedals, but the most important thing is that the core fuzz sound here is excellent—bristly and snarling, with a far girthier tone than my reissue Fuzz Face. It’s also, with the bias and low-cut controls, far more flexible. The low-cut control allows you to range from a traditional, comparatively thinner Fuzz Face sound (past noon and further) to the StarCrash’s authentic, beefier voice (noon and lower). Essentially, it cuts bass frequencies from 40 Hz to 500 Hz, resulting in an aural menu that runs from lush and lowdown to buzzy and slicing. And the bias control is a direct route to the spitty, fragmented, so-called Velcro-sound that’s become a staple of the stoner-rock/Jack White school of tone. The company calls this dial a “dying battery simulator,” and it starves the second transistor to achieve that effect.
Sweet Song of the Tribbles
Playing with the StarCrash is a lot of fun. I ran it through a pair of Carr amps in stereo, adding some delay and reverb to mood, and used a variety of single-coil- and humbucker-outfitted guitars. While both pickup types interacted well with the pedal, the humbuckers were most pleasing to my ears with the bias cranked to about 2 o’clock or higher, since the ’buckers higher output allowed me to let notes sustain longer before sputtering out. Keeping the low-cut filter at 9 o’clock or lower also helped sustain and depth in the Velcro-fuzz zone, while letting more of the instruments’ natural voices come through, of course.
With the low-cut filter turned up full and the bias at 10 o’clock, I got the StarCrash to be the perfect doppelganger of my Hendrix reissue Fuzz Face. But that’s such a small part of the pedal’s overall tone profile. It was more fun to roll off just a bit of bass and set the bias knob to about 2 or 3 o’clock. Around these settings, the sound is huge and grinding, and yet barre chords hold their character while playing rhythm, and single-note runs, especially on the low strings, are a filthy delight, with just the right schmear of buttery sustain plus a hint of decay lurking behind every note. It’s such a ripe tone—the sonic equivalent of a delicious, stinky cheese—that I could hang with it all day.
Regarding Catalinbread’s claims about the volume control? Yes, it gets very loud without losing the essence of the notes or chords you’re playing, or the character of the fuzz, which is a distinct advantage when you’re in a band and need to stand out. And it’s a tad louder than my Fuzz Face but doesn’t really bark up to the level of most Tone Bender or Buzzaround clones I’ve heard. In my experience, these germanium-chipped critters of similar vintage can practically slam you through the wall when their volume levels are cranked.
The Verdict
Catalinbread’s StarCrash—with its sturdy enclosure, smooth on/off switch and easy-to-manipulate dials—can compete with any Fuzz Face variant in both price and performance, scoring high points on the latter count. The bias and low-cut dials provide access to a wider-than-usual variety of fuzz tones, and are especially delightful for long, playful solos dappled with gristle, flutter, and sustain. Kudos to Catalinbread for making this pedal not just a reflection of the past, but an improvement on it.
Catalinbread Starcrash 70 Fuzz Pedal - Starcrash 70 Collection
The release of a newRed Panda pedal is something to be celebrated. Each of the company’s devices lets us crack into our signal chains and tweak its inner properties in unique, forward-thinking ways, encouraging us to be daring, create something new, and think about sound differently. In essence, they take us to the sonic frontier, where the most intrepid among us seek thrills.
Last January, I got my first glimpse of the Radius at NAMM and knew that Red Panda mastermind Curt Malouin had, once again, concocted something fresh. The pedal offers ring modulation and frequency shifting with pitch tracking and an LFO, and I heard classic ring-mod tones as the jumping off point for oodles of bold sounds generated by envelope and waveform-controlled modulation and interaction. I had to get my hands on one.
Enjoy the Process
I’ve heard some musicians talk about how the functionality of Red Panda’s pedals are deep to a point that they can be hard to follow. If that’s the case, it’s by design, simply because each Red Panda device opens access to an untrodden path. As such, it can feel heady to get into the details of the Radius, which blends between ring modulation and frequency shifting, offering control of the balance and shift ratios of the upper and lower sidebands to create effects including phasing, tremolo, and far less-natural sounds.
As complex as that all might seem, Red Panda’s pedals always make it easy to strip the controls down to their most essential form. The firmest ground for a guitarist to stand with the Radius is a simple ring-mod sound. To get that, I selected the ring mod function, turned off the modulation section by zeroing the rate and amount knobs, kept the shift switch off and the range switch on its lowest setting. With the mix at noon and the frequency knob cranked, I found my sound.
From there, by lowering the frequency range, the Radius will yield percussive tremolo tones, and the track knob helped me dial that in before opening up a host of phaser sounds below noon. By going the other direction and kicking the rate switch into its higher setting, a world of ring-mod tweaking opens up. There are some uniquely warped effects in these higher settings that include dial-up modem sounds and lo-fi dial tones. Exploring the ring mod/frequency shift knob widens the possibilities further to high-pitched, filtered white noise and glitchy digital artifacts at its extremes.
There are wild, active sounds within each knob movement on the Radius, and the modulation section naturally brings those to life in more ways than a simple knob tweak ever could, delivering four LFO waveforms, a step modulator, two x-mod waveforms, and an envelope follower. It’s within these settings that I found rayguns, sirens, Shepard tones, and futuristic sounds that were even harder to describe.
It’s easy to imagine the Radius at the forefront of sonic experiments, where it would be right at home. But this pedal could easily be a studio device when applied in low doses to give a track something special that pops. The possible applications go way beyond guitars.
The Verdict
The Radius isn’t easy to plug and play, but it’s also not hard to use if you keep an open mind. That’s necessary, too: The Radius is not for guitar players who prefer to stay grounded; this pedal is for sonic-stargazers and producers.
I enjoyed pairing the Radius with various guitar instruments—12-string, baritone, bass—and it kept getting me more and more excited about sonic experimentation. That feeling is a big part of what’s special about this pedal. It’s so open-ended and controllable, continuing to reveal more of its capabilities with use. Once you feel like you’ve gotten something down, there are often more sounds to explore, whether that’s putting a new instrument or pedal next to it or exploring the Radius’ stereo, MIDI, or expression-pedal functionality. Like many great instruments, it only takes a few minutes to get started, but it could keep you exploring for years.
Red Panda Radius Ring Modulator/Frequency Shifter Pedal
