
The pedal features a unique, discrete analog circuit, with a meticulously selected vintage germanium transistor at its heart.
Portland, OR (March 1, 2018) -- The Mercury IV is a dynamic tone enhancer created to bring out additional harmonic character from instruments and amplifiers. The pedal features a unique, discrete analog circuit, with a meticulously selected vintage germanium transistor at its heart.
The boost control of the Mercury IV offers a staggering 35 dB of gain, with nine tone-shaping options to gently or aggressively boost tube amplifiers. The real magic however, resides in the harmonics control; bringing more dimension and life to onesā tone. Subtle sparkle, complex textures, and octave-like overtones can all be found here. With a sound and response like hot tubes on the edge of breakup, these even-order harmonics are independently generated, giving you full control over the mix.
Features:
- 35 dB of boost on tap
- Nine tone combinations via two three-position Bass & Treble toggle switches
- Independently generated even-order Harmonics, blend-able with your dry signal
- Vintage Germanium transistor at its heart
- Five signed and numbered Limited Editions: Chrome, White, Brass, Black and Silver
- Completely hand-soldered and hand-wired by craftsmen in Portland, Oregon
- Heavy duty engraved vinyl faceplate
- Unique, discrete all-analog circuit
- Large ājewelā indicator light
- True-Bypass switching
Silver Edition: $299
Watch the company's video demo:
For more information:
Spaceman Effects
Our columnistās collection of moon spruce, ready for inspectionāwith a view.
As players get older, our instrument needs change. Our columnist shares how he designed an acoustic adapted to arthritis.
For many acoustic guitarists, playing the instrument is one of lifeās greatest joys. As a luthier, Iāve seen firsthand how deeply musicians cherish their guitars, something they look forward to playing not just weekly, but daily. As any guitarist knows, some guitars simply feel different. While some are more rigid and require extra effort to play, others feel smooth and effortless. With this in mind, as our playing needs evolve, so too may the instruments we choose to accompany us.
My clientele is diverse, ranging from musicians in their 20s to those well into their 70s and 80s. One common challenge I have observed is that as players reach their 50s, many begin experiencing arthritis, which can hinder their ability to play comfortably. There are several techniques luthiers use to improve playability, such as lowering the action or opting for a shorter scale length; for instance, switching from a Martin 25.4" scale to a Gibson 24.750" scale. But, over the years, I began considering whether it would be possible to design a guitar specifically for players with arthritis, allowing them to continue playing with less strain on their hands, shoulders, and overall body.
My guitars are already designed to be exceptionally easy to play. They are not built for aggressive strumming or rugged outdoor use, though I can accommodate various styles. Recently, I took this concept a step further for a customer, creating an instrument with a smaller neck. Moving away from the traditional 1.750" nut width, I refined it to a slender 1.675". The string spacing at the bridge was adjusted to 2 3/16" instead of the wider 2 1/4" spacing used primarily for fingerstyle playing. Additionally, I incorporated a 25" scale length for a lower string tension at full pitch.
Combined with a 13-frets-to-the-body design, these adjustments made the guitar feel significantly smaller and more comfortable in the playerās hands. To enhance comfort further, I used an orchestra-class instrument, and added both an arm and belly bevel, reducing strain on the playerās shoulders. Even though I chose an OM for this build, an auditorium-class design would work well, too.
However, the most crucial aspect of this instrument was the top, which serves as its engine. I selected a piece of moon spruce, personally sourced in Switzerland in August of last year. This type of spruce is lightweight and highly responsive. More importantly, when voiced and tuned correctly, it requires minimal effort to produce sound and it has a higher level of admittance.
āAny movement on the strings, whether by the picking hand or the fretting hand, requires significantly less effort than on a traditional guitar.ā
Admittance is a crucial factor when evaluating any musical instrument, whether one you are building or considering for purchase. In guitars and tonewoods, admittance is the amount of sound that can be produced with a standard level of effort. If a piece of wood has a high level of damping, it will not produce sound efficiently when built into a guitar, resulting in an instrument that is less enjoyable to play. Conversely, if the wood exhibits an extremely low level of damping, the guitar may feel responsive and lively, but this does not necessarily indicate a well-balanced instrument. Damping must be carefully controlled, particularly in the soundboard, to achieve an ideal balance. A properly voiced guitar should provide excellent responsiveness, a full and resonant sound, and treble frequencies that are rich and warm rather than thin or overly sharp. Thus, when discussing these aspects of guitar construction and tonewood selection, the key term to remember is admittance. For this build I was looking for high admittance while retaining a deep, well-balanced tone.
For the player, this means that even with standard tuning at A440 and regardless of whether they choose light or medium strings, though light gauge is preferable, the guitar remains incredibly soft to play. Any movement on the strings, whether by the picking hand or the fretting hand, requires significantly less effort than on a traditional guitar. This is due to the topās high flexibility and responsiveness, allowing for a soft touch while maintaining a respectable level of volume.
For those dealing with arthritis or other hand-related challenges, selecting a softer-playing guitar is essential. Shorter scale lengths can be beneficial, but having an instrument custom-built by a luthier who understands these considerations can make a significant difference. For my customers facing these issues, my goal is to ensure they can continue playing for as long as possible. I recognize how important the guitar is to their lives, and I want to help them keep playing without unnecessary discomfort. If you are experiencing difficulties, there are options available, and solutions worth exploring.
This legendary vintage rack unit will inspire you to think about effects with a new perspective.
When guitarists think of effects, we usually jump straight to stompboxesātheyāre part of the culture! And besides, footswitches have real benefits when your hands are otherwise occupied. But real-time toggling isnāt always important. In the recording studio, where weāre often crafting sounds for each section of a song individually, thereās little reason to avoid rack gear and its possibilities. Enter the iconic Eventide H3000 (and its massive creative potential).
When it debuted in 1987, the H3000 was marketed as an āintelligent pitch-changerā that could generate stereo harmonies in a user-specified key. This was heady stuff in the ā80s! But while diatonic harmonizing grabbed the headlines, subtler uses of this pitch-shifter cemented its legacy. Patch 231 MICROPITCHSHIFT, for example, is a big reason the H3000 persists in racks everywhere. Itās essentially a pair of very short, single-repeat delays: The left side is pitched slightly up while the right side is pitched slightly down (default is ±9 cents). The resulting tripling/thickening effect has long been a mix-engineer staple for pop vocals, and itās also my first call when I want a stereo chorus for guitar.
The second-gen H3000S, introduced the following year, cemented the deviceās guitar bona fides. Early-adopter Steve Vai was such a proponent of the first edition that Eventide asked him to contribute 48 signature sounds for the new model (patches 700-747). Still-later revisions like the H3000B and H3000D/SE added even more functionality, but these days itās not too important which model you have. Comprehensive EPROM chips containing every patch from all generations of H3000 (plus the later H3500) are readily available for a modest cost, and are a fairly straightforward install.
In addition to pitch-shifting, there are excellent modulation effects and reverbs (like patch 211 CANYON), plus presets inspired by other classic Eventide boxes, like the patch 513 INSTANT PHASER. A comprehensive accounting of the H3000ās capabilities would be tedious, but suffice to say that even the stock presets get deliciously far afield. There are pitch-shifting reverbs that sound like fever-dream ancestors of Strymonās āshimmerā effect. There are backwards-guitar simulators, multiple extraterrestrial voices, peculiar foreshadows of the EarthQuaker Devices Arpanoid and Rainbow Machine (check out patch 208 BIZARRMONIZER), and even button-triggered Foley effects that require no input signal (including a siren, helicopter, tank, submarine, ocean waves, thunder, and wind). If youāre ever without your deck of Oblique Strategies cards, the H3000ās singular knob makes a pretty good substitute. (Spin the big wheel and find out what youāve won!)
āIf youāre ever without your deck of Oblique Strategies cards, the H3000ās singular knob makes a pretty good substitute.ā
But thereās another, more pedestrian reason I tend to reach for the H3000 and its rackmount relatives in the studio: I like to do certain types of processing after the mic. Itās easy to overlook, but guitar speakers are signal processors in their own right. They roll off high and low end, they distort when pushed, and the cabinets in which theyāre mounted introduce resonances. While this type of de facto processing often flatters the guitar itself, it isnāt always advantageous for effects.
Effects loops allow time-based effects to be placed after preamp distortion, but I like to go one further. By miking the amp first and then sending signal to effects in parallel, I can get full bandwidth from the airy reverbs and radical pitched-up effects the H3000 can offerāand I can get it in stereo, printed to its own track, allowing the wet/dry balance to be revisited later, if needed. If a sound needs to be reproduced live, thatās a problem for later. (Something evocative enough can usually be extracted from a pedal-form descendant like the Eventide H90.)
Like most vintage gear, the H3000 has some endearing quirks. Even as it knowingly preserves glitches from earlier Eventide harmonizers (patch 217 DUAL H910s), it betrays its age with a few idiosyncrasies of its own. Extreme pitch-shifting exhibits a lot of aliasing (think: bit-crusher sounds), and the analog Murata filter modules impart a hint of warmth that many plug-in versions donāt quite capture. (They also have a habit of leaking black goo all over the motherboard!) Itās all part of the charm of the unit, beloved by its adherents. (Well, maybe not the leaking goo!)
In 2025, many guitarists wonāt be eager to care for what is essentially an expensive, cranky, decades-old computer. Even the excitement of occasional tantalum capacitor explosions is unlikely to win them over! Fortunately, some great software emulations existāEventideās own plugin even models the behavior of the Murata filters. But hardware offers the full hands-on experience, so next time you spot an old H3000 in a rack somewhereāand youāve got the timeāfire it up, wait for the distinctive āclickā of its relays, spin the knob, and start digging.
Valerie Juneās songs, thanks to her distinctive vocal timbre and phrasing, and the cosmology of her lyrics, are part of her desire to āco-create a beautiful lifeā with the world at large.
The world-traveling cosmic roots rocker calls herself a homebody, but her open-hearted singing and songwritingāāin rich display on her new album Owls, Omens, and Oraclesāāwelcomes and embraces inspiration from everything ⦠including the muskrat in her yard.
I donāt think Iāve ever had as much fun in an interview as I did speaking with roots-rock artist Valerie June about her new release, Owls, Omens, and Oracles. At the end of our conversation, after going over schedule by about 15 minutes, her publicist curbed us with a gentle reminder. In fairness, maybe we did spend a bit too much time talking about non-musical things, such as Seinfeld, spirituality, and the fauna around her home in Humboldt, Tennessee.
Ā YouTube
If youāre familiar with Juneās sound, you know how effortlessly she stands out from the singer-songwriter pack. Her equal-parts warm, reedy, softly Macy Gray-tinged singing voice imprints on her as many facets as a radiant-cut emeraldāand it possesses the trademark sincerity heard in the most distinctive of singer/songwriters. Her music, overall, brilliantly shines with a spirited, contagiously uplifting glow.
Owls, Omens, and Oracles opens with āJoy, Joy!ā with producer M. Ward rocking lead guitar over strings (June plays acoustic on nearly all of the tracks and banjo on one). It then recurringly dips into ā50s doo-wop chord changes, blends chugging, at times funky rock rhythms with saxophones and horns, bursts with New Orleans-style brass on āChangedā (which features gospel legends the Blind Boys of Alabama), and explores a slow soul groove with electronic guest DJ Cavem Moetavation on āSuperpower.ā Bright Eyesā multi-instrumentalist Nate Walcott helmed the arrangements with guidance from Ward and June, and frequently appears on piano and Hammond organ, while Norah Jones supports with backing vocals on the folk lullaby āSweet Things Just for You.ā The entire album was recorded live to tape, which was a new experience for June.
June shares her perspective on the album and her work, overall. āItās not ever complete or finished, your study of art,ā she offers. āItās an adventure, and it keeps getting prettier as you walk through the meadow of creating or learning new things. Every artist that you bring in has a different way of performing with you, or the audience might be really talkative or super quiet. And all of that shapes the artāso itās ever-expansive. Itās pretty infinite [laughs], where art can take you and where it goes.... I kinda got lost there a little bit,ā she muses, laughing.Juneās favored acoustic guitar is this Martin 000-15M, with mahogany top, back, and sides.
Photo by Tim Bugbee/Tinnitus Photography
June didnāt connect with guitar in the beginning, but discovered her passion for it later, when the instrument became a vehicle for her self-empowerment. She took lessons as a teenager but was a distracted student, preferring to listen to her teacher share the history of blues guitarists like Big Bill Broonzy and Mississippi John Hurt. āI didnāt pick it up again until I was in my early 20s, and my band that I was in with my ex fell apart,ā she says. āI still was singing and I still was hearing these beautiful voices sing me these songs, and I didnāt want to never be able to perform them. It was a terrible feeling, to be ⦠musically stranded.
āAnd I was like, āNow, I could go get a new band and get some more accompaniment, but how ābout I get my tail in there and keep my promise to my granddad who gave me that first guitar and actually learn how to play it, so Iāll never feel like this again.ā The goal was that I would never be musically stranded again.ā
She became a solo performer, learning lap steel and banjo along with guitar, and called her style āorganic moonshine roots music.ā Today, she eschews picks for fingers, even when strumming chords, and is a vital blues-and-folk based stylist when she lays into her playingāespecially in a live,solo setting. After two self-released albums, 2006ās The Way of the Weeping Willow and 2008ās Mountain of Rose Quartz, she connected with the Black Keysā Dan Auerbach, who recorded and produced her 2013 album, Pushinā Against Stone, at Nashvilleās Easy Eye Sound, which helped launch her now-flourishing career.
Valerie Juneās Gear
Guitars
Amps
- Fender Deluxe Reverb
Effects
- TC Electronic Hall of Fame
- MXR X Third Man Hardware Double Down booster
- J. Rockett Audio Archer boost/overdrive
Strings
- DāAddario XL Nickel Regular Light (.010ā.046)
- Martin Marquis Silked Phosphor Bronze (.012ā.054
Photo by Travys Owen
As we talk about art being a shared experience, June says she can be a bit of a hermit at times, but āwhen itās time to share the art, then there you are. Even if youāre a painter and you just put your painting on a wall and walk away, thatās an interaction that brings you out of your studio or your bedroom to understand this whole act of co-creatingāwhich to me is a spiritual act anyway. Thatās why weāre here, to really understand those rules and layers to life. How do we co-create together?
āAnd I think itās soĀ fun,ā she enthuses. āI enjoy learning, even when itās hard. Iām like, āOkay, this chord is killing me right now, or this phrase.... but Iāma stick with it. And then that likens to something that I might face when I go out into the world. Iām like, āAll right, I can get through this.āā
I suggest, āWhen you say āco-creating,ā it sounds like you mean something bigger.ā
āBoth in the creation of our art, but also in the creation of a life,ā June replies. āāCause how can a life be something this artistic? You get to the end of it and youāre like, āWow, look at what I co-created! With all these other people, with animals, with nature, with sound thatās all around....ā All of my life has been a piece of art or a collective creation. I imagine them like books: different lives on a shelf. And you go pick oneāāWhoa! I created a pretty fun one there!ā or, āOh, man, I had no hand in that....ā Close the book, next one!ā she concludes, laughing as she illustrates the metaphor with her hands.
āSo does that make all of your inspirations your co-creators?ā I ask.
Valerie June at one of her several Newport Folk Festival appearances, with her trusty Gold Tone banjo
Photo by Tim Bugbee/Tinnitus Photography
āYeah! Even if theyāve gone before,ā says June. āI was listening to some beautiful classical music the other day, and I was like, āMan, I donāt know who any of these artists are; theyāre all dead and gone, but Iām just enjoying it and itās putting me in a zone that I need to be in right now.ā So, weāre always leaving these little seeds for even those who are coming after us to be inspired by.ā
Some of her current non-musical co-creators are poets and authors, such as the poet Hafez, the philosopher Audre Lorde, poet Mary Oliver, and Robin Wall Kimmerer, a Potawatomi botanist whose works include Braiding Sweetgrass: Indigenous Wisdom, Scientific Knowledge, and the Teachings of Plants, The Serviceberry: Abundance and Reciprocity in the Natural World, and Gathering Moss: A Natural and Cultural History of Mosses.
āItās not ever complete or finished, your study of art. Itās an adventure, and it keeps getting prettier as you walk through the meadow of creating or learning new things.ā
āThese books are so beautiful and show the relationship of humanity with nature and the way trees speak with each other; the way moss communicates to itself,ā June explains. āThose ways of being can help humans, who always think we know so much, to learn how to work together better.ā
As sheās sharing, I see her glance out her window. āRight now, I just saw a muskrat go across the pond,ā she continues. āItās about this big [holds hands about three feet apart] and it digs holes in the yard. Itās having such a great time and Iām just like, āOkay, you are huge, and Iām walking through the yard and falling in holes because of you [laughs]. Iām just watching you live your best life!ā And then there was a blue heron that came yesterday, and I watched it eat fish.... Theyāre my friends!ā she exclaims, with more laughter.
Valerie June believes in the power of flowersāand all living thingāas her creative collaborators.
It might seem like weāre getting a bit off subject, but itās residents of nature like these who are important in her creative process.
I share how, in my own approach to art, I feel as though we can always access creativity and our ideals, as long as we stay receptive to experiencing and sharing in them. June agrees, but comments that sometimes her best self only wants to sit and focus: āNo more information; no more downloads, please.ā
An encounter with Memphis-based blues guitarist Robert Belfour, who June frequently saw perform, expanded that perspective for her. She shares about a time she went up to him after a show: āI was like, āHey, I would love to work with you on some music and maybe we could co-write a song or something.ā He was like, āNope! I donāt wanna do it.ā And I said, āWhaaat?ā And heās like, āNo. I do what I do, and I do not do what anybody else does; I just do what I do.āā
Sometimes, she says, āI think thatās just as much of an outlook to have with creating as anything. Itās like, āOkay, Iām there, Iām where I wanna be. I donāt want to be anywhere else.āā
āThatās why weāre here, to really understand those rules and layers to life. How do we co-create together?ā
Part of whatās so enjoyable about speaking with June is realizing that she truly exists on her own plane. She has no pretense, and in that, doesnāt hide some of the fears that weigh on her mind at times. But she doesnāt let those define her. Itās her easy, exuberant optimism that sparks a feeling of friendship between us, without having known each other before that afternoon. What are some of her guiding principles as an artist, I wonder?
āI sit with the idea of, āWho am I creating this for?āā she says, āand returning to the fact that Iām doing this for me, and, as Gillian Welch said, āIām gonna do it anyway even if it doesnāt pay.ā This is what I wanna do. And reflecting on that and letting that kind of be my guiding force. Itās just something that I enjoy, that I really wanna do.ā
YouTube It
From there, the conversation meanders in other directions, and June even generously asks me a few questions about my own artistic beliefs. We share about trusting your gut instinct, and walking away from situations and people who donāt serve us. This reminds her of a bigger feeling.
āWith everything that these times hold for us as humans,ā she shares, āfrom the inequality that we face to the environmental change, the political climate, and all the things that could lead us to fear or negativity.... I started to think about it, and Iām like, āOkay, well, maybe we are fucked! Maybe the planet is going to eject us and all of the other things are gonna come true! Well, if thatās whatās gonna happen, who do I wanna be?ā
āI want to go out in a way thatās sweet or kind to other people, enjoying this experience, these last moments, and building togetherness through music. I want to co-create a beautiful life even in the face of all of that. Thatās what I want to do.ā
6V6 and EL84 power sections deliver a one-two punch in a super-versatile, top-quality, low-wattage combo.
Extremely dynamic. Sounds fantastic in both EL84 and 6V6 settings. Excellent build quality.
Heavy for a 9-to-15-watt combo. Expensive.
$3,549
Divided by 13 CCC 9/15
The announcement in January 2024 that Two-Rock had acquired Divided by 13 Amplifiers (D13) was big news in the amp world. It was also good news for anyone whoād enjoyed rocking D13ās original, hand-made creations and hoped to see the brand live on. From the start of D13ās operations in the early ā90s, founder and main-man Fred Taccone did things a little differently. He eschewed existing designs, made his amps simple and tone-centric, and kept the company itself simple and small. And if that approach didnāt necessarily make him rich, it did earn him a stellar reputation for top-flight tube amps and boatloads of star endorsements.
D13ās history is not unlike Two-Rockās. But the two companies are known for very different sounding amplifiers and very different designs. As it happens, the contrast makes the current Two-Rock companyāitself purchased by long-time team members Eli Lester and Mac Skinner in 2016āa complementary new home for D13. The revived CCC 9/15 model, tested here, is from the smaller end of the reanimated range. Although, as weāll discover, thereās little thatās truly āsmallā about any amp wearing the D13 badgeāat least sound-wise.
Double Duty
Based on Tacconeās acclaimed dual-output-stage design, the CCC 9/15 delivers around 9 watts from a pair of 6V6GT tubes in class A mode, or 15 watts from a pair of EL84s in class AB1 mode (both configurations are cathode-biased). Itās all housed in a stylishly appointed cabinet covered in two-tone burgundy and ivoryātogether in perfect harmonyāwith the traditional D13 āwidowās peakā on a top-front panel framing an illuminated āĆ·13ā logo plate. Measuring 22" x 211/4" x 10.5" and weighing 48 pounds, itās chunky for a 1x12 combo of relatively diminutive wattage. But as Taccone would say, āThereās no big tone from small cabs,ā and the bigging-up continues right through the rest of the design.
With a preamp stage thatās kin to the D13 CJ11, the front end of the CCC 9/15 is a little like a modified tweed Fender design. Driven by two 12AX7 twin triodes, itās not a mile from the hallowed 5E3 Fender Deluxe, but with an EQ stage expanded to independent bass and treble knobs. Apart from those, there are volume and master volume controls with a push-pull gain/mid boost function on the former. In addition to the power and standby switches, thereās a third toggle to select between EL84 and 6V6 output, with high and low inputs at the other end of the panel. Along with two fuse sockets and an IEC power-cord receptacle, the panel on the underside of the chassis is home to four speaker-output jacksāone each for 4 ohms and 16 ohms and two for 8 ohmsāplus a switch for the internal fan, acknowledging that all those output tubes can get a little toasty after a while.
āSet to 6V6 mode, the CCC 9/15 exudes ā50s-era tweed warmth and richness, with juicy compression that feels delightful under the fingertips.ā
The combo cabinet is ruggedly built from Baltic birch ply and houses a Celestion G12H Creamback speaker. Construction inside is just as top notch, employing high-quality components hand-soldered into position and custom-made transformers designed to alternately handle the needs of two different sets of output tubes. In a conversation I had with Taccone several years ago discussing the original design, he noted that by supplying both sets of tubes with identical B+ levels of around 300 volts DC (courtesy of a 5AR4/GZ34 tube rectifier), the EL84s ran right in their wheelhouseāproducing around 15 watts, and probably more, in cathode-biased class AB1. The 6V6s operate less efficiently, however, and can be biased hot to true class A levels, yielding just 9 to 11 watts.
Transatlantic Tone Service
Tested with a Gibson ES-355 and a Fender Telecaster, the CCC 9/15 delivers many surprises in spite of its simple controls and is toothsome and dynamic throughout its range. Between the four knobs, push-pull boost function, and 6V6/EL84 switch, the CCC 9/15 range of clean-to-grind settings is impressive regardless of volume, short of truly bedroom levels, perhaps. It also has impressive headroom and a big, robust voice for a combo that maxes out at 15 watts. Leaving the boost switch off affords the most undistorted range from the amp in either output-tube mode, though the front end will still start to push things into sweet edge-of-breakup with the volume up around 1 or 2 oāclock. Pull up that knob and kick in the boost, though, and things get thick and gutsy pretty quick.
While the power disparity between the 6V6 and EL84 settings is noticeable in the ampās perceived output, which enhances its usefulness in different performance settings, you can also think of the function as an āera and originsā switch. Set to 6V6 mode, the CCC 9/15 exudes ā50s-era tweed warmth and richness, with juicy compression that feels delightful under the fingertips. The EL84 setting, on the other hand, ushers in ā60s-influenced voices with familiar British chime, sparkle, and a little more punch and cutting power, too.
The Verdict
If the CCC 9/15 were split into different 6V6 and EL84 amps, Iād hate to have to choose between them. Both of the ampās tube modes offer expressive dynamics and tasty tones that make it adaptable to all kinds of venues and recording situations. From the pure, multi-dimensional tone to the surprisingly versatile and simple control set to the top-flight build quality, the CCC 9/15 is a pro-grade combo that touch-conscious players will love. Itās heavy for an amp in its power range, and certainly expensive, but the sounds and craft involved will make the cost worth it for a lot of players interested in consolidating amp collections.