Crazy range from a digital phaser that also does chorus, flange, and deep compound modulations.
A deep digital pedal you can fearlessly use live. Intuitive controls. Easy to access flange and chorus sounds.
No presets or tap tempo available without MIDI or external footswitches.
$349
Strymon Zelzah
strymon.net
The Electro-Harmonix Small Stone was my first weird pedal. Initially I gravitated to the Small Stone because it seemed so utterly immodest, but I soon came to treasure its more subdued settings and its ability to communicate a strange, mysterious melancholy.
Strymon’s new Zelzah, with its ultra-flexible controls and combinable 4- and 6-stage phasing modes, can generate many nuanced variations on these extremes and thousands of colors in between. It also generates immersive chorus and flange tones that make this a very powerful little waveform manipulator.
Purple Waves of Phase
Strymon has remained crafty about maximizing the utility and user-friendliness of their compact stompboxes. On the Zelzah, they use their now-familiar formula of six knobs, two footswitches, and two small toggle switches allocated to two primary functions. Much like Boss pedals, this uniformity in design inspires a certain confidence (at least among players that have previously used small Strymon pedals) that you can dive in and find your way through the forest without first spending a week with a manual. Because this is a Strymon, quality time with the manual is a good idea. There is deeper functionality to consider—particularly if you embrace its MIDI potential. But players keen to get on with creation can dive headlong into the Zelzah’s pleasures and get fast results.
The Zelzah is divided into a 4- and a 6-stage phaser section. The 4-stage phaser side is ostensibly the more streamlined of the two, with knobs for speed, depth, and mix. But the toggle functions makes things interesting fast. The classic voice does nice approximations of old-school analog phasers. But the addition of a barber pole phaser, which gives the aural illusion of phase cycles unwinding endlessly, helix-like, into space, opens up cool compositional possibilities and rhythmic phase effects. The envelope mode is awesome too, not least because it can be set to sit subtly in a mix. The speed and depth knobs double as range and sensitivity controls, and the modest-to-quacky range of effects is impressive.
The 6-stage side of the Zelzah is also simultaneously streamlined and full of surprises. The main attraction here, apart from the thick 6-stage phaser, is a voice switch that morphs between phase, flange, and chorus modes—all of which are excellent. There’s also a 3-position resonance switch that gives all three voices great mellow-to-extreme range.
While Zelzah’s MIDI functionality technically enables hundreds of presets, and you can hook up an expression pedal to effectively move between two preset sounds, you cannot store and recall presets on the unit itself. You’ll either need to delve into MIDI or use an external footswitch with which you can save a single preset. You’ll also need an external switch if you rely on tap tempo. Personally, I find the Zelzah’s basic controls intuitive enough that I don’t need presets or tap tempo much. Some habitual deep divers will, no doubt, be bummed.
Players keen to get on with creation can dive headlong into the Zelzah’s pleasures and get fast results.
The USB jack that enables MIDI connectivity is situated on the crown of the pedal. But there are also true stereo outs as well as a switch that moves the pedal from mono to stereo. Stereo operation is another joy well worth exploring in the Strymon. Just be prepared to allocate a whole week for spelunking these modulation depths.
Motion for Many Moods
The Zelzah’s possible modulation textures start to feel pretty limitless once you get acquainted with the controls—particularly because you can combine the 4-stage phaser with the 6-stage phaser, chorus, and flange.
The 4-stage classic mode is easy to navigate and awash with nice phase colors. The slow and mellow tones are great. So are the fast and intense ones. You hear a lot of detail in these modulations, too, thanks to the pedal’s super-low noise. The potential of the barber pole phaser piqued my interest most. Most barber settings have a frequency-narrowing effect that lends the phase a little more focus, which in turn makes the phase cycle feel more intense. I found a bunch of cool ways to use the tick-tock sway of some of these patterns as rhythmic underpinnings for riffs. And when using the barber pole in compound 4- and 6-stage phaser sounds, you can tune in cool whistling overtones on top. Phasers may be almost intrinsically psychedelic, but the barber pole effect genuinely tweaks your sense of space and time a little more intensely.
The envelope mode, meanwhile, is a riff factory. It twists simple licks in the same way any envelope filter would. But here, the breadth of phase sounds, the ability to keep the effect subdued, and the contouring effect of the phase waveforms take the Zelzah’s version to more malleable and mellow places.
Six-stage phase sounds are generally more intense than 4-stage tones. And with the variable resonance switch available to ramp up the weirdness, you’ll probably want to stop here for your most freakish phase experiences. Even with the resonance switch off, most 6-stage voices feature a detectable whooshiness. And, at mild and high resonances and deeper depth settings, things get ultra-chewy.
The nice chorus and flange effects on the 6-stage side can be made very mellow with the resonance off, but can also assume weird and intense personalities at high resonance and depth settings. They are a fantastic addition to the killer phaser sounds that make Zelzah a practical one-stop modulation shop.
The Verdict
If you’re on the fence between keeping your phase classy and subtle and indulging your wildest modulation urges, Zelzah can accommodate wild fluctuations between those extremes. The compound modulations are an endless well of unusual sounds. And the very rich chorus tones and flanger—and the ease with which you can summon and shape them—make the Zelzah a very fair deal, even if the $349 price initially gives pause.
First Look: Strymon Zelzah Multidimensional Phaser
Multiple modulation modes and malleable voices cement a venerable pedal’s classic status.
Huge range of mellow to immersive modulation sounds. Easy to use. Stereo output. Useful input gain control.
Can sound thin compared to many analog chorus and flange classics.
$149
TC Electronic SCF Gold
tcelectronic.com
When you consider stompboxes that have achieved ubiquity and longevity, images of Tube Screamers, Big Muffs, or Boss’ DD series delays probably flash before your eyes. It’s less likely that TC Electronic’s Stereo Chorus Flanger comes to mind. But when you consider that its fundamental architecture has remained essentially unchanged since 1976 and that it has consistently satisfied persnickety tone hounds like Eric Johnson, it’s hard to not be dazzled by its staying power—or wonder what makes it such an indispensable staple for so many players.
The latest incarnation of the Stereo Chorus Flanger, the SCF Gold, underscores the timelessness of TC’s classic. And the richness of its modulations, its broad versatility, and very accessible price still add up to a most appealing multi-modulator.
Complex Sounds from Simple Controls
Pedals that combine chorus, flange, and vibrato aren’t uncommon. But given the fundamental similarities between the effects, it’s curious we don’t see more boxes that bundle the three. Obviously, specialization enables enhanced control and more refined and radical results. But for gigging guitarists and studio players that need to work fast and intuitively, there is an undeniable appeal in a pedal that covers all the bases competently.
One beautiful feature of the SCF Gold’s ageless design is the simplicity of the control set. That simplicity is essential, however, because the three controls are highly interactive and vary in feel and function depending on the mode you use.
The speed knob spans rates ranging from an ultra-lazy 10 seconds per cycle to fast, rotary-style 10-cycles-per-second pulses. The width control governs the delay time between waveforms. The intensity control is the shape shifter of the bunch. In chorus mode, it’s effectively a wet/dry blend. In flanger mode it becomes a feedback control. And in pitch modulation mode it regulates the balance between vibrato and chorus effects. The input gain control situated just below the mode switch may look less vital, but the grit, body, and volume that it adds to a signal transforms many modulations into thicker, less clinical, and sometimes more organic and cohesive sounds—though that sometimes comes at the expense of the SCF’s excellent focus and clarity. It’s also critical for overcoming some of the volume loss that you perceive at intense modulation settings.
In both live and studio settings, the extra top-end clarity makes the SCF Gold pop.
Clear-Eyed and Wobbling
If you had to pick a single characteristic that sets the SCF Gold apart from other classic analog choruses and flangers, and the contemporary pedals that imitate them, it’s the TC’s focus and clarity, particularly in the high-mid and high frequencies. Many analog chorus pedals end up with a fairly dark voice—partly as a function of bucket brigade circuit design, but also, perhaps, in an attempt to tame resonant peaks and better simulate the more liquid qualities of rotary speakers and tape flange. I love those smoky modulation colors. But there are times, especially when I’m working with a dense arrangement, that I want a chorus to sit more present and distinctly in its corner. The SCF Gold’s relatively bright voice enables these simultaneously more prominent and less bossy tones. For players that revere the heavy, unmistakably underwater sounds of Electro-Harmonix’s Electric Mistress flanger and Polychorus or the Boss CE-1 chorus, the TC might sound comparatively thin. But I love the fidelity I can hear in its less murky modulations. And in both live and studio settings, the extra top-end clarity makes the SCF Gold pop, which is killer for underpinning ’80s-style applications and modern indie-pop hooks.
There are countless textures to uncover among the SCF Gold’s modulations, including a wealth of familiar classic chorus and flange sounds. But there are scores of surprising highlights, too. Mating fast and fairly intense vibrato pulses to high input gain settings, for instance, generates a fair approximation of Magnatone amp vibrato in a pinch, and a nice Boss VB-2 style throb in cleaner settings. And high flange speeds coupled with modest width settings create gently pulsing waveforms that are redolent with hints of phase, tremolo, and delay. Adding intensity in this setting adds progressively more vowely and metallic overtones—yielding some of the coolest sounds the pedal has to offer.
Among the chorus sounds, the most traditional late-’70s/early-’80s modulations were the most enticing and addictive to my ear. But the chorus also dishes stylish approximations of 12-string electric (particularly with a bright Fender bridge single-coil out front) and trippy faux-rotary sounds, which sound extra immersive in stereo.
The Verdict
If you’re a gigging player, the utility and jack-of-all-trades flexibility of the SCF Gold could make it indispensable. And if you’re into pedalboard economy, it could conceivably replace multiple pedals. Whether you’re chasing the most versatile modulator possible or just authentic ’70s to ’80s chorus and flange sounds, the SCF Gold’s $149 price represents an excellent value. The modulations may not be as deep or queasy as those you’ll hear from other classic analog choruses and flangers. But the low noise floor and focused EQ profile make it easier to wrangle in many musical situations.
Does it better the many variations of the SCF that have come before it? Well, with crown-mounted 9V power and an input gain circuit that bumps the pedal’s already considerable headroom, we’d have to say yes. However minor and incremental these improvements may be, they are reason enough to investigate this fun, multifaceted, sweet sounding, and super affordable multi-modulation device if you haven’t already had the pleasure.
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