EarthQuaker Devices has been bringing its own intriguing amp designs to NAMM as pedal-demo vehicles for the last couple of years, but this year they finally announced a model that's available for purchase: The super-simple Sound Projector 25 is a linear, 25-watt class-A head that features volume, treble, and bass controls, and comes stock with KT66 power tubes. Thanks to its external bias-test points, it can also easily be adjusted to run other octal tubes (e.g., EL34, 6L6, 6V6). It's available in black or white covering for $1,850 street, or with a matching Baltic-birch 2x12 cab with Celestion Vintage 30s or custom Warehouse speakers for $2,450.
“When in doubt, don’t.” It’s a pearl of wisdom that offends risk takers and guides more than a few tortoises to the finish line ahead of the rabbits. But in the tone-chasing world this dictum carries extra weight, because depending on your aims, anything you situate between guitar and amplifier can subtract as much as it adds. Indeed, a little restraint can go a long way toward sweetening a sound.
And restraint is one of the things that makes the ZEQD-Pre, a preamp co-designed by EarthQuaker and Mike Zaite (aka Dr. Z), such an elegant piece of kit. The things they didn’t add make it easier to use. The streamlined design also makes the ZEQD-Pre feel truly additive. It can lend body and excitement to big tube amps that sound flat at low volume. And as an analog addition to digital signal chains, it adds real life and a tactile dimension to flat, drab, or spiky DAW and modeler tones.
Feel Free With The Help Of A Pre
Though the ZEQD-Pre is a beautifully integrated whole, it’s effectively made up of two sections. There’s a passive EQ that can do a lot on its own to recast or fine tune the sound of a tube amp or modeler. It also features a boost. Switching on the boost disengages the EQ. But both sections use the level control as an output volume control.
In my first experiments with the ZEQD-Pre, I situated it in front of a 50-watt Fender Bassman and 2x12 cabinet. And though I suspect more potential customers will be interested in the EarthQuaker’s potential in digital environments, it can transform conventional tube amplifiers. I rarely get to turn my Bassman up much past 2 in my house. But the ZEQD-Pre’s EQ section made those modest volumes sound much fuller. The boost is not a high-gain affair, but it adds weight and excites overtones that might otherwise lay dormant at low volume. At higher amp volumes it can add a just-right nudge into the dirty zone that almost always sounds silky rather than harsh.
EarthQuaker Devices ZEQD-Pre Preamp Demo
“It is zingy, responsive, and does much to take away the uncanny valley sense of lifelessness you can feel when interacting with a modeler.”
Use of the EF86 in a preamp is not common—at least relative to the ubiquitous 12AX7. But Dr. Z’s choice of the EF86 for the boost is an inspired one. It is zingy, responsive, and does much to take away the uncanny valley sense of lifelessness you can feel when interacting with a modeler. Those that know the EF86 by its too-hot-to-tame reputation needn’t fear that it will be a handful though. The ZEQD-Pre boost voice is balanced and lively in all the right ways, and these attributes are especially apparent when the pedal is paired with a digital end destination.
When testing the ZEQD-Pre in this capacity—by running a cable from the headphone output straight into the Hi-Z input of my Universal Apollo Twin—I did not make it easy on the EarthQuaker. My main instruments are Jaguars and Jazzmasters, and the relatively thin and trebly output from both of them rarely flatters modeled and DI sounds. But I really liked the tones that I tracked with just the ZEQD-Pre and the DAW—especially without a modeled amp in the mix. The EQ adds body and tone-shaping versatility, and the boost lends real character and color, inhabiting a sweet space that is neither Fender Princeton nor Vox AC15, but which possess some of the smooth richness of the former and the sparkle of the latter. I enjoyed the sound of the ZEQD-Pre direct into the Apollo so much that it ceased to feel like a compromise between amp and modeler. Instead, it felt like something unique—an amp with its own very appealing flavor that I would use for its sonic virtues as much as its convenience.
The Verdict
Though I’ll opt for a tube amp in almost any situation where there is a choice, I’ve warmed to some of our faux-amp friends in the digital domain. That said, I think I would choose the ZEQD-Pre and my pedals over almost any modeler. In direct-to-DAW situations, the ZEQD-Pre is warm, alive, and sounds, well, a lot like a real amp. It also feels like it was designed by people that know how a tube amp should feel under the fingers and in a room.
The ZEQD-Pre makes distortion and fuzz units sound like their real selves. And even without a simulated power amp, the cab sim makes rigs sound great through flat response monitors. The ZEQD is nearly $400, and for most of us, that’s a hefty enough sum to give pause. But the U.S.-made ZEQD-Pre is designed by gifted builders that have poked around the innards of amps and stompboxes for years and built classics in their respective fields. So, you can rest assured that the bars this pedal needed to clear in sonic and quality terms are high ones. I was pleasantly surprised and impressed—to the point where $399 seemed a very reasonable price to pay. And if you’re a tube amp loyalist navigating the worlds of backline-free gigging and digital recording, you may end up similarly smitten.
Pedalboards tell stories, and this year's submissions prove it! From the minimalist who ditched the road case and went back to a One Spot on the floor, to the collector building a “Starboard” entirely from famous guitarists’ gear, to the neurosurgery videographer crafting soundscapes for the nervous system—these rigs reflect real lives and real gigs. Bass players with bamboo builds, experimentalists with dual boards, and portable warriors powering entire rigs from USB banks all made the cut. Here are seven boards with stories to tell.
New Wave Happy Place
Reader: Stephen Jackson
I’m a pretty ordinary guitar player, but I’ve loaded up on ten pedals that make me sound halfway decent. For me, my happy-place sonics are from the diffuse new wave genre of the late 1970s to mid-1980s. I just can’t get enough.
I prefer keyboard-dominated new wave that’s generally kind to enthusiastic but ordinary guitarists. I like it nice and dark—the Cure, Siouxsie and the Banshees, or the Cocteau Twins—or more pop-ish with some grit, like the Psychedelic Furs. I also love what I call “skinny guitar rock new wave”—earlier Talking Heads or Elvis Costello.
My pedals are powered by a Fender Engine Room LVL12, which is great for cutting down amp hum. Yes, there are battery packs that power pedals and may even help reduce cord hum, but they make me nervous—I forget to charge my phone or my vacuum stick, let alone a battery pack.
The first port-of-call from guitar to amp on my rig is a Boss TU-3 Chromatic Tuner. Next is an always-on MXR Dyna Comp compressor. Following that is a new wave synth staple, an Electro-Harmonix Synth9. Then the overdrive pedals: a newly-released entry in the Tube Screamer lineage, the TWA SC-01 Source Code, which is commonly on and dialed up relatively mellow; a kicked-up MXR Timmy; and a seething and spitting Electro-Harmonix Op Amp Big Muff Pi. My skinny rock songs get the SC-01 treatment or a Timmy on occasion. Oddly enough, the Big Muff is at home when turned down to backing some electronica—Berlin, for instance—as well as noisy new wave.
Next up is an MXR Smart Gate. Before I added that—and the Fender Engine Room—my Fender Jazz Bass had an annoying hum. Not anymore.
Finally, there are three stomps that, along with the Synth9, get my sound to the electronica and pop new wave happy place: an Electro-Harmonix Lester K stereo rotary speaker pedal, a Boss CE-2W Waza Craft Chorus, and a Boss DD-8 Digital Delay. My advice: never fear a chorus pedal.
Portable Power
Reader: Adam Thomas
The board itself has a Li’l-moXie power supply hiding underneath. The red USB cable plugs into any USB power bank and powers the whole rig. The guitar output plugs straight into the [TC Electronic] Sub ’N’ Up [Octaver] pedal for the creation of bass lines and general low-frequency ambience. From there the signal travels to the Spark GO to be given a thorough going-over before it heads into the Lekato Looper. The second layer of the loop probably needs a true bypass from the Sub ’N’ Up and a different preset on the GO—no problem if you have the Spark Control X.
Next I send the signal into the [TC Electronic] Iron Curtain noise gate to get rid of any little imperfections created by the looper, and off we go to the Mooer Drummer X2 to provide some rhythmic accompaniment. I send the final output to a SubZero 15" portable PA (battery powered) via a stereo splitter line, giving me more options than you can shake a stick at for the entertainment of your fellow man, no matter where you may find them.
Experimental Lab
Reader: Kurt Nolen
I’m the Medical Photographer/Videographer for the University of North Carolina School of Medicine Department of Neurosurgery, and frequently need to produce educational/academic or communications-related videos. Sometimes this material can use more narrative styles of music, but frequently it needs textural soundscapes that reference the subject matter in the video and drive viewer interest without being distracting. Want to evoke the sound of your globus pallidus? What does your nervous system sound like? What would high-intensity, focused ultrasound treatment sound like if you could hear it? This rig does it. I’m also an experimental composer and noise artist in my free time and needed something that could serve that purpose—or for sitting in with my friend’s Oingo Boingo cover band.
Board #1 (front of amp): guitar into Ernie Ball VPJR, DigiTech Whammy 4, Morley Bad Horsie, Xotic SP Compressor, Boss FT-2 Dynamic Filter, EarthQuaker Devices Swiss Things—loop 1 out to MXR Duke of Tone, Electrofoods Ultd Pigpile fuzz, EarthQuaker Devices Bit Commander, EarthQuaker Devices Time Shadows V1, Boss JB-2 (with JHS Red Remote), JHS Bonsai, JHS PackRat, Boss DM-2W to loop 1 return.
Board #2 (amp FX loop or loop 2 on EQD Swiss Things if running direct): FX out to EarthQuaker Devices Rainbow Machine, MXR EVH117 Flanger, MXR EVH Phase 90, Boss DC-3, Walrus Mako D1 Delay V2, Red Panda Bitmap, EarthQuaker Devices Arpanoid, Chase Bliss Audio MOOD, Red Panda Tensor, Pigtronix Infinity 2, Walrus Audio Slö Multi Texture Reverb to FX return (or Swiss Things loop 2 return if direct).
Legendary Pedals
Reader: Paul Martin
This is my “Starboard.” I call it that because it’s made up of pedals previously owned by famous guitarists. I mostly bought them from artist sales on Reverb, with a couple from Techno Empire and Pedal Pawn in the U.K. I was randomly collecting artist-owned pedals for a while, but when I bought [Deftones bassist] Sergio Vega’s pedalboard I decided to put a board together. The line selector switches between the top row for soloing and bottom row for clean. The board itself was owned by Sergio.
Top row: Boss PH-3 Phase Shifter, owned by Andy Taylor (Duran Duran and the Power Station); 1980s Ibanez AD9 Analog Delay, owned by Mitch Holder, a go-to session guitarist for Frank Sinatra, Barbara Streisand, and Lionel Richie; Boss DD-2, owned by Kiko Loureiro (Megadeth); signed MXR EG74 Eric Gales Raw Dawg Overdrive (limited to 250); vintage MXR MX-102 Dyna Comp, owned by producer and musician Dennis Herring; Boss LS-2 Line Selector, owned by Evanescence; Boss TU-3 Chromatic Tuner, owned and signed by Tommy Emmanuel.
Bottom row: Walrus Audio Lillian Analog Phaser; Electro-Harmonix 720 Stereo Looper, owned by Malcolm Cecil, who invented the TONTO analog synthesizer and was responsible for the sounds on Stevie Wonder’s first three albums; JHS Artificial Blonde Madison Cunningham Signature Vibrato, signed by Madison when she was in Dublin supporting John Mayer; Friday Club ED-450b Echo Machine, owned by Isaac Brock (Modest Mouse); Boss CH-1 SUPER Chorus, owned by Daryl Stuermer (Genesis and Phil Collins); Boss HF-2 Hi Band Flanger, owned by Tad Kubler (the Hold Steady); and Goodrich Model 122 Volume Pedal, owned by Steve Lukather (Toto). From soloing on Stevie Nicks’ “Stand Back” to virtually all of Michael Jackson’s Thriller, it doesn’t get much cooler than that.
Bamboo Bass Rig
Reader: Dino von Wintersdorff
My bass pedalboard: Starting with a TC Electronic PolyTune 2 tuner, the signal goes into a Seymour Duncan 805 Overdrive, then a Seymour Duncan Forza Overdrive, an Electro-Harmonix Bass Big Muff, and finally a Donner Noise Killer. [An EBS MultiComp sits top right as well.] All on a board made out of bamboo and plywood, giving a fresh vibe on the stage!
First I got the Seymour Duncan Forza to have some nice controllable overdrive for the bass—the 3-band EQ helps get a nice tone. Then I found the clean signal was too boring and I added the SD 805 to have an always-on slight crunch and tone shape, and I love it! Sometimes the Muff and Forza are on at the same time, but the 805 isn't. So switching back to only 805 mode can be wild—there are times onstage that I would hit not only those three pedals, but also the tuner, instantly killing my signal!
No Board Required
Reader: Sam Paige
So obviously, yeah, there’s no board. It’s on the floor. In the 20-plus years I’ve been playing—starting with a few daisy-chained pedals to a fully-loaded [Pedaltrain] Novo 24 and nearly doing my back in taking the case offstage—I’ve got back to the pick-and-mix life of a [Truetone] 1 Spot and whatever I fancy.
Recently a band I fronted for six years or so fell apart, and as one door closed another opened. Starting in a new project, this was the first few weeks of bringing some old pedals and the 1 Spot to a new adventure and finding a new footing again.
Chain: Defects Super Super Super, something of a clone of the rare Death By Audio Super Fuzz War. Fuzz on one side, then boost. Inside there are dip switches for each side to shape EQ, add gain, add mids—usual setup is “full Fuzz War” with added mids, and currently a full-range boost on the other side. Second, the Electro-Harmonix Mel9, a sort of impulse buy based on seeing one of my favorite guitarists, Mr. John Dwyer, use it. It’s janky, has trouble with certain power supplies, and seems to have no built-in compression. So your effect out is either too quiet, just right, or blows your head off. I love it. It hasn’t left a setup since I bought it. Next, the Boss TU-2—god knows how old it was when it got to me (I rarely buy new), but I’ve had it for at least a good 15 years. A bit hard to see in the direct sunlight, but at least it won’t break. And a Boss RE-20 [Space Echo]—the more I use it, the more I’ve grown to love it—the perfect amount of bounce for echo effects. It’s forever inspiring and reliable. I keep thinking of trading in for one of the newer models, either to downsize or expand, but I can’t relegate this pedal to the shelf, or the draft listings on Reverb or eBay.
Double Trouble
Reader: Randall Brown
I spent years as an “only use the amp’s drive channel” guy, then started looking at EHX pedals out of nostalgia for a long-lost Muff Fuzz. Over the last 15 years or so, I’ve collected this batch of circuit friends with the idea of building wide tonal flexibility. I’m influenced equally by classic riff lords like Black Sabbath, contemporary psychedelic outfits like Osees and King Gizzard, and the ultra-modern trips of St. Vincent.
One of my favorite recent discoveries is a parallel mix of the EHX Cock Fight and the Fender Waylon Jennings Phaser—a slow-modulated buzz that really straddles the synth/buzz-guitar fence. I still pay the most attention to the magic that Electro-Harmonix puts out. In my drive to build the mega-board I have now, I started with the Freeze first. I also keep an eye out for additions to what I call the “fake bored keyboardist” section. The Freeze, Canyon, Key9, and Mel9 are the cornerstones of that. There are some days when I think I should go back to a single overdrive or go straight into the amp. But all the sounds are just too much fun!
My guitar goes into a PRS Mary Cries compressor, then a Boss TU-2, then into an Electro-Harmonix Switchblade Plus. From the Switchblade, two signal chains go to two different amplifiers.
Roland JC-120 signal chain: Electro-Harmonix Ravish Sitar, Tonebutcher WeeWah auto wah, TC Electronic Sub ’N’ Up, Electro-Harmonix Intelligent Harmony Machine, Electro-Harmonix Cock Fight, Eastwood BB-01 Manalishi Drive, Way Huge Stone Burner, Catalinbread Bicycle Delay, Boss DD-2 Digital Delay, Walrus Audio Fundamental Series Ambient, Electro-Harmonix Freeze.
Fender Hot Rod Deluxe signal chain: Electro-Harmonix Mel9, Electro-Harmonix Key9, DOD Gonkulator, Electro-Harmonix Nano Big Muff Pi, PRS Horsemeat Transparent Overdrive, Boss SL-2 Slicer, Electro-Harmonix Canyon, Fender Waylon Jennings Phaser, Way Huge Atreides Analog Weirding Module.
Like most of you, I would guess, I’ve never had the pleasure of playing aDumble amp. I have a fair idea of what they are supposed to sound like thanks toStevie Ray Vaughan and, presumably, David Lindley and Henry Kaiser (I’m never sure what amp I’m hearing on records from those two mad geniuses). But I definitely don’t know how a Dumble feels, or how it sounds up close in a room. So, I have to take NUX’s word for it that they deliver on the Steel Singer—an overdrive inspired by the Dumble Steel String Singer.
Chops: Intermediate Theory: Intermediate Lesson Overview: • Learn how to construct Dorian scales. • Understand the minor-key harmony of “Last Dance with Mary Jane.” • Develop an ability to hear the raised 6 in a minor scale.
I love modes. I love playing them. I love teaching them. But they are tricky to teach because it’s difficult to wrap your head around them without having to dive deep into theory, which isn’t an easy step for some players. As a teacher, I look for ways to make modes fun and relatable, and this always lives and dies by the quality of your examples and source materials. Over this past holiday break, I started researching the mighty 5-watt Fender Champ tube amp. What does this have to do with modes? Read on.
Tom Petty’s guitarist Mike Campbell is a well-known fan of low-wattage Fender amps. I was watching a segment on the history of the Champ and when the main riff to “Last Dance with Mary Jane” came up, it piqued my interest. It was a song I knew well, hadn’t really heard in a long time, and never had a reason to study—until now.
There was something about the song that was unique and I wanted to dig into. And because I needed inspiration for a new lesson, the timing was perfect. The first thing I like to do when figuring out how a tune works is to lay out the main chords as an inventory. For this tune, the chords are pretty simple:
Am–G–D–Am
Yet again, Tom Petty takes a simple harmony and crafts an enduring rock anthem around it. We all joke about three-chord rock, but this is not only three-chord rock, it’s modal as well. So, why is this a Dorian chord progression? Just looking at the chords might be enough if you’d studied harmony a ton, but if you haven’t, the next step we should take is to spell out the chords into their individual notes:
Am = A C E
G = G B D
D = D F# A
Now that we’ve deconstructed the chords, the next task is to decide which note you think is home, or in theory-speak, the I. In this case, it’s pretty clear that A is home. We keep coming back to it, and it really does feel and sound right. With that done, we can take the chord tones and alphabetize them, starting with A. This yields a string of seven notes: A–B–C–D–E–F#–G.
Okay, we’ve taken inventory of all the notes contained in those three chords, starting from our root (A). The next step is to ponder the harmonic consequences of this discovery. What makes this a Dorian progression is the D major chord with an Am tonic. This D triad brings us an F#, which is not the normal F you’d see in an A Aeolian, aka A natural minor, scale (A–B–C–D–E–F–G). With Dorian, you end up with a scale that sounds minor, but with a raised 6, compared to natural minor. This yields an intriguing sound that’s not quite as dark as the minor scale you’re accustomed to. Many people describe and teach Dorian as a minor scale with a raised 6, and that’s exactly what we have here.
To get familiar with this sound, grab “Last Dance with Mary Jane” on your favorite music service and play along in A Dorian. Ex. 1 shows a handy scale diagram based on the 5th fret root of A on the 6th and 1st strings.
Now that we’ve connected the chords to the Dorian mode and we have a scale fingering, let’s hear some riffs in context.
For Ex. 2, I’m keying off the fact that this Dorian scale position is in the same spot as the familiar minor pentatonic scale, so we’re getting to use both the mode and the pentatonic in the same phrase. I’m featuring the F# (or the 6) as the signature note that makes Dorian unique, and also because it’s the 3 of the D major chord. You can play that F# whenever you want in this progression, but it’s extra awesome over the D chord.
With its bluesy beginning, Ex. 3 is another line that relies on the pentatonic scale lurking inside of the Dorian scale. Again, when the D major chord occurs in the second measure, I’m calling attention to it with the F#. It’s a simple way to connect with the Dorian scale and still keep that rock/blues feel we all love.
For our final example (Ex. 4), I stayed away from the pentatonic sound and tried to create a simpler melody with just the Dorian scale. It starts in the middle of the guitar’s range and follows a see-saw pattern of “go up a few, go down a few.” At the start of each chord change—every two beats—I align to the chord in the progression: A for the Am chord, G for the G chord, and F# for the D chord. This is a little bit of voice-leading that reminds me of “While My Guitar Gently Weeps.” It not only helps you anchor the chord progression, but it connects with the mode at the same time. We’re only using a portion of Ex. 1’s two-octave scale pattern—sometimes simple is best.
But wait there’s more! While the opening chords clearly spell out an A Dorian progression, the chorus shifts to yet another modal key. This song keeps on giving us things to learn and practice—how cool. When the chorus starts, we hear the following chords:
Em–A–Em–A–G
As before, let’s pull the chords apart to see what’s inside:
Em = E G B
A = A C# E
G = G B D
And just like last time, we need to determine the root. In this case, it’s clearly E minor, so we’ll call this an E something mode. Starting with E, let’s ascend through the pitches to see what we get:
E–G–A–B–C#–D
This gives us six notes. While we’re missing the second note after E (which, in a seven-note scale, would be some type of F), we can still conclude it’s another Dorian scale, this time in the key of E. Relative to E, C# is a raised 6 and this matches our general idea of Dorian construction: minor scales with a raised 6. It’s really cool that this song allows you to practice in two keys, A Dorian for the verse and E Dorian (E–F#–G–A–B–C#–D) for the chorus.
Ex. 5 is a scale diagram for E Dorian. Note that it’s the same pattern as our previous A Dorian scale, just shifted up to the 12 fret to place the E root on the 6th and 1st strings.
The chorus is my favorite part of the song because it’s a moment where everything comes together—the chords and Petty’s vocal melody combine for a beautifully haunting Dorian sound. Pay attention to the “ry” in the melody of “Mary” to hear that C# over an Em chord—that’s the distinctive Dorian color at work. It’s one of the reasons I’ll keep this song in my arsenal of material for teaching Dorian to students, along with Pink Floyd’s epic “Breathe” from Dark Side of the Moon. (Go work out the Dorian key for that one.) For now, use the above examples for inspiration and find your own riffs and ideas for “Mary Jane.” Let your creativity and ears be your guide.
I hope you enjoyed exploring how to reverse-engineer a simple song. Over time, this process will become faster and you’ll be able to hear the modes more easily. The next time a tune really tickles your ear, take it apart as we’ve done here. Who knows? It may spawn a soloing concept or a song idea you wouldn’t have otherwise considered.
Are you looking for a flexible amp modeler for the stage, studio, or home? In this in-depth demo, PG contributor Tom Butwin takes you through gigging, practicing, and recording with two compelling options: the touchscreen-powered Hotone Ampero II and the tactile, amp-style Blackstar AMPED 3.
