Electro-Harmonix's POG3 Polyphonic Octave Generator Pedal offers six separate voices, 100 user presets, extensive I/O, and expression control.
Released in 2005, the original POG revolutionized the world of octave pedals and became a favorite of the likes of Joe Satriani and Jack White. The POG2 followed with updates like programmable presets and an attack filter that helped the POG garner even more popularity among guitarists all over the world. With the biggest feature update to date, the POG3 becomes the most powerful polyphonic octave generator ever.
Electro-Harmonix POG3 Polyphonic Octave Generator Pedal (EHX Demo by BILL RUPPERT)
Building on the foundation laid by the original almost two decades ago, the POG3 offers updates that include a +5th voice, 100 user presets, extensive I/O, enhanced effects section with individual dry effect routing, and expression control over almost every parameter of the pedal.
Features
- Six separate voices: DRY, -2 OCT, -1 OCT, +5TH, +1 OCT, +2OCT
- 100 presets
- Three separate 1/4" outputs – LEFT, RIGHT, DIRECT OUT
- Individual pan controls to separate voices between the LEFT and RIGHT output jacks
- Classic POG and POG2 ATTACK, FILTER, and DETUNE controls with enhancements
- INPUT GAIN control
- MASTER VOLUME control
- FOCUS control for +1 OCT and +2 OCT
- Multimode Filter with Q and Envelope sweep
- All controls can be saved to presets and controlled via expression and/or MIDI
- Illuminated slide pots and buttons
- 128x32 graphic OLED display
- Selectable “home” views to allow for personalized user experiences
- Easy-to-navigate menu system
- New NavCoder knob allows rotary and directional navigation through menus
- EXPRESSION / CV input offers multiple modes of expression
- USB-C port to connect to Windows or Mac and interface with EHXport™ app
The Electro-Harmonix POG3 is available now, comes equipped with a high current EHX 9 Volt power supply and features a U.S. Street Price of $645.00.
For more information, please visit ehx.com.
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John Bohlinger, Andrés Segovia would like to have a word with you.
Back in their day, recordings of music were a way to promote sheet music. Labels released recordings only after sheet-music sales slowed down on a particular song. That means that until recently, a large section of society not only knew how to read music well, but they did it often—not as often as we stare at our phones, but it was a primary part of home entertainment. By today’s standards, written music feels like a dead language. Music is probably the most common language on Earth, yet I bet it has the highest illiteracy rate.
As a lifelong professional musician, it’s surprising—and, frankly, a relief—how infrequently I read staff music. Though I read chord or Nashville number charts often, staff rarely comes up, usually only in sessions where a producer/writer/artist has a particular melody or gang riff. I feel a deep shame when I have to read music; I do it about as well as an out-of-shape guy with no training runs a marathon: slowly, painfully, maybe not making it to the finish line.
I learned everything I know about reading through junior high school orchestra, where I was a crappy violinist. So, you can chalk one up to the Montana public school system. Although at times I’m ashamed of my poor music-reading skills, it’s not that big of a deal. When I’m faced with a written staff full of sharps and flats and weird time, I just ask the keyboard player to play the tricky parts slowly. If there’s one player in the band that can read well, it’s usually keys; they mostly grew up with formal lessons. If I hear piano play the part while I read along, the dots and squiggles on the staff start to make sense.
“By today’s standards, written music feels like a dead language.”
I bet most guitar players feel conflicted about reading music. We all want to learn as much as we can about guitar, and obviously some of that information is going to escape us if we can’t read it, even with tabs and guitar-nerd videos just a few clicks away. But maybe our lack of formal training is the source of our superpower. I suspect that the reason guitar has been the driving force behind most popular music for the past 65 years is because the instrument invites exploration. The more you mess with it, the more you discover. That’s the addictive quality of guitar. That’s probably why most guitar players would rather make stuff up than read what somebody else wants them to play. When you have that many people experimenting and creating, art takes a big step forward.
By contrast, classical musicians are not about innovation or taking chances. They are more about interpretation, virtuosity, and a reverence for tradition. The majority of classical music played today was composed in 1600 to 1875. New, experimental classical music is a hard sell. People want to hear the classics, like Bach, Beethoven, and Mozart.
It’s a strange dichotomy: classical players tune by ear but almost never play by ear. Ask a seasoned orchestra player to improvise and most of them will get a little panicky.
Guitarist: Let’s jam in E.
Orchestra Nerd: What do you mean?
Guitarist: I’ll play something, you play with it. Just make up a melody.
Orchestra Nerd: What melody?
Guitarist: Just make one up?
Orchestra Nerd: What do you mean?
It goes on like that until they nervously decline.
Guitarists are, for the most part, fearless about exploration. Just look at the instrument itself. Most violins built anywhere in the world today look pretty much like the ones built in the 16th century in Italy. By contrast, guitar designs are as varied as car designs—maybe more so. Go into a big music store and you can play a gut-string, flattop, archtop, Les Paul, Tele, Strat, Jaguars, PRS, Flying V, Explorer … and that’s not even getting into the weird ones. Eddie Van Halen could not find a guitar that could produce the music in his head, so he built it. The point is, guitar is an instrument of improvisation—no rules in how you play it or how you build it.
Maybe this is just a way of justifying my shortcomings or making the most of my laziness or lack of brainpower, but I think there’s an upside to being musically illiterate. As the mighty EVH said: “You only have 12 notes, do what you want with them.”
Any working ’60s JMP Super Lead is an amazing amplifier, but the combination of Dave’s ears, experience, and quality time with his own Super Lead add up to a melding of twists and tradition that captures the richness, power, and dynamics of Marshall non-master-volume amps in a high-quality and, if you want, quieter package.
Stripped Down, Lowdown, Bright, and Brighter
True to lineage, the 50-watt Plex uses a pair of EL34 power tubes and a trio of 12AX7s pulling preamp and phase inverter duties. The familiar volume 1, volume 2, presence, bass, and mid knobs handle gain and EQ tasks. But the Plex deviates from tradition, too. An old Marshall Super Lead has four inputs—high and low sensitivity inputs for channel I and II. The Plex, however, uses a single pair of inputs that are hardwired in jumpered fashion—the same way you might jumper on the front panel of a 2-channel Marshall—effectively mixing the two preamp stages. A post-phase-inverter master volume helps keep the sound pressure level in check when you need to cool it without compromising feel and dynamics. And above each volume knob is a 3-way bright switch. The switches alter the frequency and gain response of the corresponding volume control, toggling between a darker bypassed setting, a mild treble boost enabled by a 100 pF bright capacitor, or a screaming third setting with a 4700 pF cap in the line. The power switch doubles as a high/low voltage selector, engaging an internal Variac that drops operational voltage from 120 volts to 90 volts, achieving the brown sound synonymous with ’80s hard-rock Super Lead applications.
The spartan back panel sports outputs for 4-, 8-, or 16-ohm loads and an IEC mains power input. The head weighs in at a reasonable 34 pounds with dimensions of 24" x 10" x 8.75"—just a hair smaller than a real JMP. The circuit is arrayed on a high-quality printed circuit board—a manufacturing method Friedman favors in many respects for quality control purposes.
But … Does It Van Halen?
Hell yes it does. Dime the Plex, flip it to low voltage, and you’re living in the Eddie zone. Recreating that high-octane, modded-Marshall aggression and kerrang with the most familiar Marshall-style knobs is easy and intuitive. But this amp is full of surprises, too, and many sonic possibilities hide behind the simple additional controls.
The lead channel, controlled by volume 1, is aggressive and edgy, capturing the cut and midrange growl most immediately associated with vintage plexis. Anything below 3 on the gain control is pretty clean. At around 4, hot pickups will induce breakup. And in the 5-to-6 range, it comes alive with rich saturation, enhanced harmonics, and sustain. Approaching 10, the Friedman blossoms into something furious and snarling. The 100 pF bright capacitor setting gently lifts the top end for a hint of jangle, while the 4700 pF cap boosts upper midrange and treble, adding even more chimey range and sharper bite.
The normal channel, controlled by volume 2, feels very much like the antithesis of the lead channel. It’s dark and brooding with lots of resonance in the bass. Keeping the gain below 5 still yields a woolly, forceful voice. Starting around 6 it slips into thick clipping, and as you move toward 10, the Friedman delivers progressively denser tonalities, more compression, and more sustain. The 100 pF bright cap mode adds a splash of air, while the 4700 pF setting significantly jacks the drive and boosts frequencies from 1200 Hz up. Each is a very different version of a cool color.
Sonic Structure
Much of the amp’s tone-shaping flexibility comes from using the volume knobs, not just for gain, but as tone controls to create a best match for a specific guitar. In a general sense, the normal channel adds fullness and body to single-coils, while the lead channel brings definition, bite, and clarity to humbuckers. With a Stratocaster, setting both channel volumes in the 3-to-6 range achieves classic Marshall clean that hints at Hendrix. Strat pickups sound zingy with bright caps bypassed, but the 100 pF setting adds even more attractive shimmer. Lead mode and high gain settings are a nice fit for a Strat, too. Setting the lead channel to 7-to-8 and backing the normal channel to 4 pushes the amp to full-bodied, blistering sustain, and adding the 4700 pF bright cap adds upper midrange urgency. P-90s in a Les Paul Jr. are a more extreme version of this recipe—gritty, snarling, and explosive. But if I ever sensed the signal was lacking, just rolling up the normal channel and using the 100 pF cap did the trick—evoking, more than once, the gritty style of the Pixies’ Joey Santiago.
The Plex’sdynamics and touch sensitivity are outstanding. Using just variation in guitar volume and picking intensity, I effortlessly moved from clean arpeggios to crunch and full-on shred. The low sensitivity input felt especially nice for working with these intensity adjustments, too. It predictably reduces gain, but it also darkens and mellows edgier pickups. The vintage-voiced tone stack is sensitive as well. Treble, mid, bass, and presence controls are accommodating, cover a lot of harmonic range, and even extreme EQ settings never seem to neuter the fundamental voice. If you use pedals, you’ll run them straight into the front of the amp. There’s no effects loop here. Still, a Riveter Electric Brass Tacks treble booster with dark amp settings conjured the sounds of early Sabbath, and the front end easily handled the extra level.
My Kid’s Asleep
Usually, implementing a master volume in this type of circuit can produce sonic anemia at low levels. But Dave Friedman’s addition of a unique post-phase-inverter master volume means you can preserve much more tone, character, and feel at tiny-venue levels. The low-voltage Variac mode offers interesting less-hot options, too, enabling spongier, more saturated, creamier tones at less deafening volumes.
The Verdict
The Plex offers a perfect balance of vintage Marshall-ness and a not-too-busy list of practical extra features—maintaining the essence of plexi tone while expanding tone-shaping functionality and increasing the amp’s useful volume range. But for all its enhancements, the Plex stays close to its vintage inspiration, giving it a brash, raw, unruliness that’s always exciting
Friedman PLEX 50-Watt Tube Amplifier Head
