RatingsPros:A wide range of tube-warmed tremolo sounds with a friendly control set. Cons: Might be a tad conservative for sonic buccaneers. Street: $199 Fender MTG Tube Tremolo fender.com | Tones:  Ease of Use:  Build/Design: Value:  |
When gospel-blues legend Pops Staples needed a backline amp, he always requested a Fender with “shake.” If Pops were still with us, he’d be able to get all the “shake” he needed—and more—with Fender’s MTG Tube Tremolo.
Like other Fender pedals I’ve encountered, the MTG honors the company’s heritage by dialing in the traditional sounds just right. But in this case it also explores the wilder side of the tremolo effect and offers control that no old-school amp can offer—thanks in large part to the highly flexible wave controls designed with Bruce Egnater.
Peek Inside the Box
There is, indeed, a tube inside this pedal’s ultra-sturdy 5" x 4" x 2" metal enclosure. It’s a tiny NOS 6025 preamp tube, made in the 1940s. Fender acquired a thousand of them when it bought Groove Tubes in the ’90s. So, naturally, the device requires a 9V power supply—especially because the perceived volume drops a little as tremolo intensity increases, and turning the level dial up compensates for the loss by raising the voltage fed to the tube. Cranking the level also works as a bit of a signal boost—but just a bit.
All four dials have LED position-markers that improve visibility on dark stages, but you can switch the lights off with a switch at the back of the pedal. This is increasingly a standard-issue feature on Fender pedals, and it’s a brilliant, genuinely useful idea.
Just as on a classic Fender amp, there are controls for tremolo speed and intensity. What is improved is the degree of precision the MTG’s speed knob provides. Handy markers for specific beat subdivisions—quarter note, dotted eighth note, quarter note triplet, eighth note, dotted sixteenth note, eighth note triplet, and sixteenth note—are listed around the speed dial, eliminating guesswork. Since there are no detents, you can set the knob anywhere between those spots, too. More personalized speed settings are possible via the tap tempo switch, and a flashing LED above the tap switch always pulses to the active tremolo tempo.
Outside the Box
Tremolo wave-shaping controls include a mode toggle and a wave dial. The latter blends or selects between available waves shape in a given mode, and together they can produce real magic—sculpting trem forms that run from languid, smooth, and soothing to the nattering blips of Martian radar. In toggle-up position, the mode switch moves through a triangle- to sine-, to square-wave range, providing traditional smooth textures as well as choppy effects. In the middle toggle position, the wave control spans sawtooth to triangle waves. In the down position the wave control governs pulse width for a hard square wave, which is great for stuttering effects.
The wave dial really expands the potential of each waveform. In the toggle’s up position, for example, 12 o’clock on the wave dial provides a creamy balance between smooth and choppy with more buttery and hard pulses at the two extremes. (I run through all three toggle settings at different wave dial positions in the demo video online.) The many pulse and wave shape variations can translate to surreal textures with other effects too: I had a blast setting the toggle in pulse-width terrain, cranking the wave dial all the way right, and passing the signal through a granular delay for a sound a lot like mice squeaking in Morse code.
Obviously, the MTG is not just about weirdness, Many players who use this pedal are likely looking for accurate traditional tones. And with my Stratocaster plugged into a clean Carr Vincent with the reverb on 3, the MTG Tube Tremolo was a ticket to the past. I found a wide variety of pretty and articulate tremolo sounds. My favorites included the gentle shimmers I got from a balance of triangle and square waves, as well as a eighth-note setting with the intensity that I crafted in honor of Pops Staples.
The Verdict
Both classicists and rebels will find textures to love in Fender’s super-easy-to-use, mid-priced MTG, which puts the company’s classic tube tremolo formulas—and more—in one convenient box.
Watch the Video Demo:
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Chops: Intermediate Theory: Intermediater Lesson Overview: • Learn different ways to arrange scales. • Combine various sequences to create more intersting lines. • Solidify your technique by practicing unusual groupings of notes. Click here to download a printable PDF of this lesson's notation. |
Vox’s Valvenergy Tone Sculptor
I spent a day workshopping ideas in my studio using just the Vox Valvenergy Smooth Impact compressor and Tone Sculptor EQ, and a dash of amp tremolo and reverb to taste. In the process, I produced more arresting sounds than I had heard from my guitars in many days. There were radical direct-to-desk-style Jimmy Page/Beatles distortion tones, sun-sized, cosmic electric 12-string, Bakersfield twang that could burn through crude, and many other sweet and nasty colors. Most decent EQ and compressor combinations can achieve variations on all those themes. But the Smooth Impact and Tone Sculptor also reveal interesting personalities in unexpected places.
The individuality and energy in the Vox Valvenergy pedals is attributable, in part, to the Nutube vacuum tube used in the circuit. Though it looks little like a vacuum tube as most guitarists know them, the thin, wafer-like Nutube is, in fact, a real vacuum tube like those used in fluorescent displays. Fluorescent display tubes have limitations. A maximum operating voltage of around 40 volts means they aren’t useful for bigger power tube applications like a 6L6, which has an operating voltage of about 400 volts. But it can work quite well as a preamp tube in concert with an op amp power section, which is how the Nutube is used in the new Valvenergy pedals, as well as older Vox products like the Vox MV50 and Superbeetle amps.
Valvenergy Tone Sculptor
When you think about “cinematic” effects, you likely imagine big reverb or modulation sounds that create a vivid picture and feeling of space or motion. But narrow, hyper-focused EQ profiles can evoke very different and equally powerful images. Radical EQ settings can add aggression, claustrophobic intimacy, and stark, explosive dark-and-light contrasts more evocative of Hitchcock’s Psycho than Ridley Scott’s Blade Runner.
Any of these moods can be summoned from the Valvenergy Tone Sculptor. Six sliders cut or boost 10 dB frequency bands spanning 100 Hz to 5.6 kHz. A seventh slider cuts or boosts the master output by 12 dB. This platter of options might not sound like much. But you can use these seven controls together to very specific ends.
“Radical EQ settings can add aggression, near-claustrophobic intimacy, and stark, explosive dark-and-light contrasts.”
For example, bumping the high-midrange and the master output produces narrow cocked-wah-like filter sounds with enough push to produce extra amp overdrive—effectively turning the Tone Sculptor into a buzzy, almost fuzz-like filter effect. But unlike a wah, you can carefully scoop high end or add a spoonful of bass to blunt harsh frequencies or give the tone a bit more weight. You can also broaden the palette of an amp/guitar pairing. I matched a particularly trebly Jazzmaster bridge pickup with a very hot and toppy Vox AC15-flavored amp for this test—a recipe that can be spiky on the best days. But with the Tone Sculptor in the line, I could utilize the same sharp, fuzzy, and filtered Mick Ronson wah tones while shaving some of the most piercing frequencies.
EQ pedals exist on many points along the cost spectrum. And at $219, the Tone Sculptor lives on the high side of the affordable range. Does it offer something less expensive models can’t deliver? Well, for one thing, I found it relatively quiet, which is nice whether you’re shaping toppy high-contrast effects or performing more surgical adjustments. And the sliders feel nuanced and nicely tapered rather than like a dull axe with a few basic frequency notches. But in many situations I also liked the color imparted by the circuit—generated, presumably, by the Nutube. “Color,” in audio terms, is a broad and subjective thing, and one should not necessarily expect the warm, tube-y glow of a vintage tube Pultec. Still, the Tone Sculptor has many forgiving, flattering qualities—typical of studio EQs—that enable fine tuning and experimentation with more radical and creative applications of the effect.
Valvenergy Smooth Impact
As with the Tone Sculptor, the Smooth Impact’s use of Nutube engenders certain expectations. It’s easy to surmise that because Smooth Impact has a vacuum tube in the circuit that it will behave like a little Teletronix LA-2A leveling amplifier. That’s a big ask for a $219 stompbox. On the other hand, the Smooth Impact exhibits some appealing characteristics of studio tube compression. At lower compression levels, it works well as a thickening agent—adding mass without much additional noise. And at higher compression levels it can sound snappy, crisp, and tight without feeling like you’ve bled every trace of overtone from your signal.
The Smooth Impact’s controls aren’t totally atypical. But because it lacks some familiar features like variable attack and release, yet is more complicated than a 1-knob DynaComp, you have to trust your ear to navigate interactions among the controls. The most unfamiliar of these is the 3-way vintage/natural/sag toggle. The first two are defined by preset attack and release settings: Vintage is slow attack and long release, and natural is the opposite. The sag mode’s compression is more like what you get from tube saturation, and it’s useful for adding thickness and complexity to a thin amp tone at modest compression levels.
Though the vintage and natural modes certainly have a different feel, they don’t always sound worlds apart. And like the sag mode, the thing they have in common is the way they enrich lifeless amp output at low to medium compression, with a bit of grind from the tube gain and a little extra makeup gain from the output. At the most aggressive settings, the tube gain can get a little crispy. And really crushing the compression can flatline your tone without adding much in the way of extra sustain. These are limitations common to many compressors with similar features. But unless I was chasing very ultra-snappy Prince and Nile Rodgers fast-funk caricatures, I enjoyed the Smooth Impact most in its in-between ranges, where mass, mild, harmonious drive, and low noise showcase the pedal’s sometimes studio-like personality.
