Electro-Harmonix is excited to introduce the Pico Swello Attack Envelope pedal. Inspired by the legendary POG2 ATTACK slider, the core effect of the Swello is a polyphonic attack filter which applies individual volume swells to each note you played, even within chords and through sustained arpeggios. This unique effect is paired with an adjustable Low Pass Filter for smooth swells and envelope filter-style effects.
Housed in EHX’s Pico-sized chassis, the Swello has a simple four knob/one button layout. VOL adjusts the overall output of the pedal while ATTACK sets the attack envelope time. Low ATTACK settings attenuate just the initial attack of your instrument, while higher settings offer epic, long note swells. The Low Pass Filter is controlled by the FILTER button as well as the FREQ and MOD knobs. FILTER engages the LPF and applies an adjustable high or low resonance setting. The FREQ knob sets the cutoff frequency of the LPF and the MOD knob controls the depth and direction of the filter modulation akin to an envelope filter. Turn MOD up from noon for an upward filter sweep or down from noon for a downward filter sweep.
The EHX Pico Swello comes equipped with a standard EHX 9 Volt power supply. It will be available Mid-September and features a U.S. Street Price of $149.50.
What was already a standout moment of this year's Wacken Open Air, the world's largest metal festival, turned into something even bigger when legendary guitarist Michael Schenker pulled a surprise no one saw coming. The architect of hard rock used the world's loudest stage to announce that a brand new Michael Schenker Group studio album, titled Don't Sell Your Soul, will be released on October 3 via earMUSIC.
To mark the occasion, Schenker and his band closed the show with a world-exclusive live premiere of the new album's title track — a powerful encore that took the Wacken crowd by surprise and was met with instant enthusiasm on the muddy festival fields. You can now listen to the new track HERE.
Don't Sell Your Soul is the second part of an album trilogy that began with 2024's My Years With UFO. This will be the first studio album for MSG since Universal in 2022.
The album was produced by Michael Schenker and Michael Voss, and recorded with Schenker's longtime allies: Bodo Schopf (drums), Barend Courbois (bass), and Steve Mann (guitar, keys). On vocals: the impeccable Erik Grönwall (Skid Row, H.E.A.T) – undoubtedly one of the finest rock voices of his generation. Guest appearances on vocals by Robin McAuley, Dimitri "Lia" Liapakis, and Michael Voss round out the cast.
The Michael Schenker Group was formed in 1979 and has released 12 studio albums with many different members over the years, with Schenker the only constant presence.
Michael Schenker played in the rock band UFO and leads the Michael Schenker Group (MSG). He was an early member of the hard rock band Scorpions, a band co-founded by his elder brother Rudolf Schenker.
Michael Schenker is regarded as one of the most influential guitarists of the 1970s, and is widely known as a legendary figure in the history of metal guitar.
Michael Schenker is an undisputed living legend and it is time to sell your soul with MSG. Let us know what you think! Michael IS doing a limited amount of interviews so let's talk and see what we can set up!
Our columnist’s favorite wah pedals—from left to right, an Ernie Ball, a Excetro Wau Wau Machine, an Ibanez Double Sound Fuzz Wah, and a Dunlop Cry Baby Mini—are a partial history of the device’s evolution.
If you ask me what my favorite pedal is after fuzz, the answer is definitely wah. Bands like Fu Manchu and Dinosaur Jr. are great examples of just how powerful wah, fuzz, and a wall of amps can sound together. Sorry, I’m not into SRV voodoo or those “whacka-whacka” kinds of wah sounds.
Let’s dig a little deeper. My very first wah pedal was actually a gift from my ex-girlfriend. She told me it sounded “sexy.” She knew absolutely nothing about guitars. Maybe the sound reminded her of some sleazy ’70s B-movie soundtrack. That pedal was a Dunlop GCB95 with a red Fasel inductor. I absolutely loved it … at first. I even took it out on tour. But I grew to hate it. It was heavy, hard to click on, had no on/off LED, and it sucked tone like crazy. But still, it was the pedal that made me fall in love with wah and start digging deep into its history.
Wah is one of the most iconic effects pedals—so iconic that even non-guitarists recognize it instantly by sound alone. Hence the name—wah. The effect was first developed around 1964 by the Thomas Organ Company, an American distributor of Vox products from the U.K. Their goal? Originally, it was intended for use with Vox organs, to mimic a trumpet-like tone. Bradley J. Plunkett, a junior engineer at Thomas, modified a midrange booster circuit and eventually decided to use a potentiometer as a frequency control. The result was essentially a variable band-pass filter, initially released as the Clyde McCoy Wah-Wah. McCoy was a trumpet player, and that product was intended to achieve a muted-trumpet effect with guitar. In 1967, to better appeal to guitarists, the name was changed to the Cry Baby, although in Italy Vox branded the device as the V846 Wah-Wah—and the rest is history.
As the music industry evolved, so did the wah pedal. Both the sound and the mechanism used to operate wah pedals went through significant changes. The original Vox V846 used a variable band-pass filter housed in an organ volume pedal enclosure, where the potentiometer was turned via a gear. This allowed players to control the frequency range with a rocking foot motion. This design is still used today by many manufacturers.
However, that system has its drawbacks. Over time, the gears wear out due to friction. Then, there’s the issue of limited sweep range: most rotary pots have about 270 degrees of rotation, but gear mechanisms often only utilize about a third of that, making them far from optimal. In 1977, Ernie Ball replaced the gear mechanism with a string-loop-and-spring design, allowing for a full and smooth sweep. Roland and Boss also introduced unique approaches, including automotive-like axle designs and pedal mechanisms inspired by bicycle cranks—equally effective and efficient. Morley, meanwhile, took a more futuristic approach by employing optical sensors to control the sweep, with no moving interior parts at all.
“Perhaps due to their legacy tones, many players enjoy the limitations of the original design.”
Despite these innovations, no single mechanism has rendered the others obsolete. In the end, it’s up to the musician—the user—to decide which design works best for their playing style and live performance needs. I find myself more comfortable with devices like the one from Ernie Ball, simply because they include an LED indicator. I also really love the Dunlop Bass Wah—essentially a manual envelope filter—which I think is genius.
That said, the classic gear-style wah pedals still have their loyal fans. Perhaps due to their legacy tones, many players enjoy the limitations of the original design. I still believe the lack of an on/off LED indicator is the biggest flaw in traditional wahs like the Cry Baby or Vox models.
Maybe I’m just one of those people with unorthodox tastes and needs. I don’t claim to be special or different, but wah pedals are tools for making music, and music-making is by nature a subjective process. And that’s totally okay, right?
In fact, I’m sure many of the innovations we’ve seen in wah pedal design come from the designers’ own subjectivity—trying to solve real problems they perceive in real contexts. As long as people are passionate about making music, new ideas will keep emerging. Weird, wonderful, and always evolving—that’s wah.
Re-live classic Rig Rundowns from Tool’s Justin Chancellor, Pantera’s Rex Brown, Tim Commerford (RATM/Prophets of Rage), MonoNeon (Prince), and other road-tested pros as they reveal the routing, wah/whammy tricks, delay math, and looping workflows that truly hold up onstage.
When California-based effects company Noise Engineering released their Desmodus Versio in 2020, it represented the first reverb effect in their product line, but they coined a new term for the DSP-based effect: a synthetic-tail generator. The name reflects the reality that it is, by definition, the Desmodus Versio doesn’t create literal reverberation, as in reflections in a room, but instead builds “tails” onto an audio signal. Taxonomy aside, it was a powerful, well-received, and positively jam-packed digital unit.
The Batverb, launched earlier this year, is an evolution of Noise’s tail-generating efforts. However, it uses brand-new code programmed for Electrosmith’s Daisy Seed DSP platform. A stereo effect box that spans delightful and demented flavors of delay and reverb, the Batverb is generously featured and full of unique takes on space-making effects.
Heads or Tails
The Batverb’s main panel includes six knobs, three 3-way switches, two footswitches, and one “bat” button, which you press and hold to access alternate parameters assigned to the knobs. On the crown are input jacks for either mono or stereo performance as well as MIDI in/out and expression pedal jacks. Up to 16 different presets can be saved and recalled via MIDI.
In normal operation, the knobs govern, from bottom left to bottom right, input volume, time, a suboctave chorus, an octave-up shimmer, “regen” or feedback, and a blend of dry and wet signals. When holding the bat button, those same knobs, in order, control output volume, MIDI channel selection, high-pass filter, low-pass filter, duck amount, and expression pedal parameter assignment. The focus switch changes the diffusion of the delay lines. In the left position it behaves more like a delay, while the other two settings sound and feel more like reverbs. Grit adds, in the middle and right positions, a discrete soft-clipping distortion, and duck determines the responsiveness of the feedback. In the switch’s center position, there’s no ducking. At left, feedback monetarily increases when input volume is received, then tapers off as the signal does. At right, the opposite happens, and feedback increases as the signal gets quieter.
Enter the Bat Cave
To my ears, the Batverb’s more reverb-y patches are in hall or room territory—albeit very cavernous halls or rooms. But reverb sounds created by the Batverb’s algorithms sound more authentic to me than many sought-after reverbs I’ve played. Rather than an indistinct wash of sound, the tails here give the convincing impression of your amp’s signal ricocheting around a high-ceilinged cathedral, at first coming back in clearer, sharper bursts, then melting into smeary ambience. And the handy hold feature can be engaged for infinite regeneration by tapping the footswitch, or for a specific window by pressing and holding. That double utility goes a long way toward determining whether the Batverb sounds organic or unhinged.
The sub- and up-octave content injected by the doom and shimmer knobs is more chaotic and spacious than garden-variety iterations of those effects you’ll find on many octave-based reverbs, and that’s a good thing. Like most effects generated by the Batverb it feels like the product of thoughtful, well-considered programming.
The delay algorithm, engaged with the focus toggle at left, is pleasant and plenty usable, and it’s nice to have alongside the less predictable reverb settings. But the Batverb’s deep tweakability means you can still dial in a broad range of both standard and more marginal delay sounds. The chunky transistor-ish dirt summoned by the grit switch widens the palette further. Add in the touch-sensitive ducking (and its customizable parameters), and you’ve got a ton of ground to play with.
The Verdict
Noise Engineering created an outstanding reverb and tail generator here. Considering its steep asking price, the Batverb will be out of the question for many players, but it’s obviously geared to adventurous players and discerning producers, especially those looking for authentic, parallel universe-conjuring ambience and noise in their studio or live rigs. For these musicians, the Batverb will be more than worth the bite it takes from the bank balance.