The Jack White Pano Verb features unique stereo-imagine options. “[White] wanted to be able to do sort of startling things with each speaker’s content,” says Fender’s Stan Cotey.
Hooking up with Fender for the Jack White Signature Collection—which includes the Signature model hot-rod Jack White TripleCaster Telecaster and the stunning Jack White TripleSonic Acoustasonic—is as big as it gets, and this week’s announcement is proportionately epic.
The all-new Jack White Pano Verb amp looks to be one of the most forward-thinking advances in tube amps we’ve seen in … well, a very long time! Although it’s roughly inspired by three vintage Fender models—a 1964 Vibroverb, a 1960 Vibrasonic, and a 1993 Vibro-King—the Pano Verb is a rare all-new design that is poised to thrill. The single-channel stereo amp delivers 70 watts of combined power and features stereo harmonic tremolo and stereo reverb circuits, with unique routing options through the hip pair of 15" and 10" speakers. If you haven’t checked out Fender’s video announcing the amp, prepare to have your mind blown by the possibilities.
“It wasn’t based on what we could or couldn’t do, or what even was or wasn’t possible. It was just what Jack was looking to accomplish.”
Fender Vice President of Research and Development Stan Cotey, who worked closely with White to develop the prototypes for the Pano Verb, says, “There were no restrictions as far as how wild something could be. It wasn’t based on what we could or couldn’t do or what even was or wasn’t possible. It was just what Jack was looking to accomplish.” Putting those goals into action was a kick for Cotey. “I love the fact that we’re still pushing the idea of vacuum tubes and that there are things remaining to be done,” he says. “And [the Pano Verb] is a really crazy thing. It’s fun when one of the larger companies tackles a big crazy thing and releases it in a bold manner.”
We rang up Cotey to get the scoop on designing the amp as we wait to get our hands on one.
Cotey calls the Pano Verb “a really crazy thing,” and says, “It’s fun when one of the larger companies tackles a big crazy thing and releases it in a bold manner.”
The Pano Verb has a refreshingly unique and adventurous set of features.
Stan Cotey: There’s two separate power amps, there’s two separate preamps, there’s a reverb circuit. There are two separate harmonic vibrato circuits. There’s two full, separate amps in it—there’s one power supply, but everything else, there’s at least two of.
There are several different kinds of stereo interaction that could happen. The harmonic vibrato could be stereo. The reverb, even though it’s a mono tank, could be steered to the speakers differently, which kind of gives a stereo-imaging thing. So, that opens up myriad possibilities for how things could work.
How involved was Jack in the design?
Cotey: He was completely hardcore. He cared in great detail, exactly down to fine decimal points, how it worked. He was very particular about the voicing. He was very particular about the features he knew. He’s pretty studio savvy, so he had a sense of routing, how he wanted the stereo interaction of the sections to work together. He very much had an idea of stereo-ness for the amp at the outset of it. He talked early on about miking both speakers and panning them—he wanted to be able to do sort of startling things with each speaker’s content.
I think my role was to take the stuff that he wanted to do and figure out how we could do it. So, the stereo-ness of the amp, the 10" speaker versus the 15" speaker, the routing stuff you could do where the reverb goes to one speaker or both, all that stuff came from Jack.
Jack’s Vibrasonic was a touchstone for the Pano Verb.
Cotey: That amp lived with me for quite a while. He knew that he liked the harmonic tremolo.
The stereo harmonic tremolo, that’s a fairly part-intensive circuit, even in a normal brown amp. In this amp, there’s two full circuits in it, so it is literally double the parts of one of the more complicated earlier ’60s amps, just for that part of the amp. I worked out how that works. That’s two harmonic tremolos that are in sync, but opposite polarity. So, when one’s going up, the other is going down, and vice versa.
Stan Cotey is Fender’s Vice President of Guitar Research and Development and worked with White to design the prototypes for the Pano Verb.
The reverb mix on the Pano Verb is rooted in some vintage designs, but it’s handled a little differently here.
Cotey: In the video, he talked about the reverb tank in front of the amp, which forms the Vibro-King, and that he liked the idea. I think he liked the idea of having a more comprehensive, dedicated reverb circuit in an amp, not where it’s just kind of spread on the top, like margarine or something.
In a traditional Fender amp, there’s a feed that comes off the preamp circuit that goes to a driver, which is a tube and a little transformer, and that drives the reverb tank. Then, the output of the reverb tank goes into a recovery amp, a little gain stage with a tube, and that gets mixed with the output of the channel and shoved into the power amp. So, the reverb kind of occurs between the preamp and the power amp. It largely takes the tonality of the preamp on because the tone controls are upstream of it.
Jack has an old Fender amp from the early ’60s that had reverb added. I don’t know who modified it, but they actually used the second channel of the amp as the reverb return, which I think is really super clever. Then you get tone controls for the reverb. So that’s where that idea came from. He didn’t necessarily want the reverb circuit in front. He liked it between the preamp and the power amp, but he wanted to have it be more comprehensive than what would be on a typical mid-’60s Fender amplifier.
What was the most exciting feature for you to create?
The stereo harmonic tremolo was really fun, and the journey that we went on to get there was really cool. I have a tweed amp from the late ’50s from Guild that has tremolo in it, and it’s a stereo amp. It has two separate everythings. The tremolo only works on one side, and that gives the apparent sound that it’s kind of going back and forth between the speakers. We tried having just the harmonic tremolo on one side of this, and it really wanted to have two complete full circuits. So that was one of the changes that got made.
Getting the power amps to work well together was fun too. That was more about transformer and tube selection and working the power supply parts out, getting the amps where they would distort in the right way at the right times or right level. But the harmonic tremolo was definitely the elephant dancing on the bucket with the streamers going off.
Combining a ferocious fuzz circuit with remarkably powerful pitch-shifting capabilities, Keeley’s new Octa Psi pedal makes it easy to blow your mind … and have a ton of fun in the process.
It’s capable of creating pleasing and/or demented intervals, subtle harmonizing, expansive octaves up and down, and swooping pitch changes—all turbocharged by one of the gnarliest fuzzes this side of Armageddon.
Simply Psychoactive ... By Intent
If you’ve ever craved a user-friendly freakout, this is it. With just five knobs, two 3-way toggle switches, and a pair of footswitches—as well as an expression pedal input—the Octa Psi presents a comfortable, inviting portal to a universe of crazy sonic exploration.
That’s exactly what Robert Keeley intended from the moment he started designing the Octa Psi.
“The finished pedal is true to the original idea that I had in November 2021,” Keeley says. “I wanted it to have a high-gain vintage Muff, all-analog and all-transistor, going into an octave pitch shifter—something in the neighborhood of a Pitch Fork or POG. And then when I added the expression pedal function, it could resemble a whammy.”
Ah yes, the expression pedal input. Linking the Octa Psi with a standard expression pedal opens the door to a whole new dimension of pitch shifting mayhem. Rest assured, you don’t have to use an expression pedal to derive crazy fun from the Octa Psi. But it sure helps.
With all of the pedal’s deep functionality, Keeley felt that simplicity would be a key factor in broadening its appeal, starting with this elemental item: “From the get-go I wanted it to have order switching, allowing the fuzz feeding the pitch shifter or vice versa, because it gives you two distinctly different sounds if you have pitch going before or after the fuzz. And it had to be pretty effortless for the player to switch the order on the fly. And I wanted it to be easy to switch between using it either as a harmonizer or as an all-wet octave-down thing.” That desire for ease-of-use, even in the middle of a live gig, drove the design of the pedal’s controls and functions.
“I wanted to come up with something that Jack White, Steve Vai, or Frank Zappa would have fun with.”
It Ain't Easy to Create Easiness
The Octa Psi exemplifies an old adage: Sometimes a simple solution can be the most difficult to achieve. “I knew this was going to be a challenging project,” Keeley admits. “It’s very tough to combine a high-gain, full-analog distortion with a DSP [digital signal processing] section in one box. It took a long time to get the switching just right. It was particularly difficult because the Octa Psi’s analog and DSP sections are so intimately entwined. You can’t have gaps in the audio when you’re switching back and forth. Those kinds of complications drove us crazy.
“We also addressed a lot of issues that have raised concerns about other products on the market. The Octa Psi is a true-bypass pitch shifter, and it has our killer buffer system as well. There’s nothing else out there like this, so we had to figure it all out for ourselves.“
An essential challenge: voicing the fuzz so that it would sound great as a standalone effect, while also playing nicely with the Octa Psi’s harmonizer functions. “You would think that the fuzz was easy, but it was actually one of the last things we ironed out,” Keeley notes. “I had to ask myself, ‘Do I want this to be a bass-y fuzz?’ Probably not, since the pitch shifter can add octave down. But it’s got to be an amazing sounding fuzz if I want people to consider buying it. It has to sound great when compared to any Big Muff, and it has to effortlessly pair with a DSP section. So, getting the fuzz just right turned out to be the hardest part!”
The pedal design process also encountered some last-minute wrinkles. “The ramping and momentary switching capability was the last big feature that was added. That ramping function is like having an onboard expression pedal. We talked about it in the beginning of the process with Sarah Lipstate [also known as the artist Noveller], when Aaron Pierce [a key member on the Keeley team] was working on the initial concept. Later, Michael Kaye—the guitar tech for Pete Townsend and Trey Anastasio—asked, ‘Does it have momentary switching?’ and I was like, ‘Oh crap, I forgot about that!’” Keeley laughs.
The How-To Guide for Octa Psi's Hidden Features
For all of its readily accessible capabilities, the Octa Psi boasts several essential features that can only be accessed by using more than a single knob or switch. To unlock these features, it helps to have a few simple, specific instructions. For this reason, Keeley has included a brisk, handy primer on the back of each pedal. The Octa Psi’s key “hidden features” include:
- EFFECT ORDER: You can instantly switch the effect order by simultaneously holding the octave and fuzz footswitches.
- WET/DRY SELECTION: Double-click the blend control knob for switching between wet/dry blending or wet-only.
- MOMENTARY/LATCHING OPTION: Press and hold the fuzz footswitch to choose between momentary or latching operation. This is crucial if you plan on using the Octa Psi’s adventurous pitch shift ramping capability: the output signal begins with the initial note(s) you’re playing, and then veers up or down to the effected pitch. The ramp speed—i.e. how quickly this veering effect lasts—is controlled by….
- RAMP SPEED: If you’re using pitch shifting in the momentary mode, you can adjust the ramp speed by pressing and holding the octave footswitch down, then adjusting the blend knob control.
Part of an Ongoing Evolution
The Octa Psi underscores the continuing evolution of Keeley’s product line. In particular, it benefits from a pair of preceding Keeley devices: the I Get Around Rotary Simulator pedal and California Girls Twelve String Simulator—two pedals that were released in summer 2024 as exclusive offerings for the U.S. retailer Sweetwater, timed to coincide with The Beach Boys documentary on Disney+.
“That Beach Boys project did so much to help the DSP side of the Octa Psi,” says Keeley. “I got audio analyzers in so I could study the signals. We found out that we had to make our power supplies better because of the Beach Boys pedals, and that revolutionized our design. Everything that comes out since the Beach Boys pedals is going to sound even better. Plus, it was a lot of fun working with Sweetwater and JHS Pedals.”
Interestingly, for the Octa Psi project, the Keeley design team did not rely on much input from the company’s long list of affiliated artists. “I didn’t really have an artist that is a pitch/fuzz guru, so I had to keep it pretty much to ourselves. I knew that it had to be very musical—as musical as we could get it. And thankfully we have a team that can make this happen.”
The Keeley product development squad includes electrical engineer Craighton Hale, programmer Aaron Tackett, and Aaron Pierce—the “golden ears” member of the design group who helps analyze the sounds. “I’m just one part of the team of engineers that help make the products come to life,” Keeley notes.
Fun for Everyone
In the end, Keeley hopes that the Octa Psi pedal finds new and unconventional uses in the real world. “I wanted to come up with something that Jack White, Steve Vai, or Frank Zappa would have fun with—something that does all the crazy pitch-shifting with a purpose. And I’m hoping that musicians of all types will be attracted to this. People who want to distort their drums or bass or synth, and then start taking advantage of the pitch shifting. It’s almost like you get a great fuzz with the pitch shifter for free. On the other hand, I wouldn’t be surprised if some people use just the pitch shifter, if they’re not a fuzz maniac. You can get a lot of fun out of it without an expression pedal.”
Whether you’re a brazen sonic adventurer, or simply looking for a great-sounding dual function fuzz/harmonizer pedal, the Octa Psi offers a galaxy of tones for your arsenal.