Though the business of cloning pedals is competitive (and endless fodder for frothing Reddit denizens), I appreciate when a pedal company offers a useful twist on an established formula.Warm Audio accomplishes this with the Throne of Tone. It is clearly inspired by theAnalog Man King of Tone. But it is also very obviously a nod to the Marshall Bluesbreaker, the pedal that Mike Piera used as a departure point for his KOT design. The Throne of Tone, though, might mark the point at which the snake bites its tail. It cross-pollinates the circuits in a dual overdrive that opens up many, many tone-coloring avenues and options.
Split Personality
Mike Piera ripped up a friend’s Bluesbreaker to build the first King of Tone. But by the time he rewired it, it was a different pedal altogether. To the extent that the KOT and Bluesbreaker sections are accurate in the Throne of Tone, the differences between the original Bluesbreaker and King of Tone are easy to hear. It’s hard to accurately assess the accuracy of the Throne of Tone’s two circuits without a real-deal King of Tone or Bluesbreaker at hand. But I’ve played through both as well as excellent clones, and in both sound and feel, both Throne of Tone circuits are in the ballpark and better.
In very general terms, that means the “king” side is a bit less aggressive, darker, and more dynamically responsive to changes in pick intensity—especially when you want to go from gnarly to truly clean. The “blues” side is a bit more dynamite, revved up, and lively in the midrange. It’s more immediate and a bit harder to keep on a leash for dynamic purposes. But the Throne of Tone is a great multiplier—and mixer—of these qualities, because you can experience each basic voice through the lens of high gain and low gain settings, a boost, an overdrive or a distortion. Additionally, output from each side can be modified with a presence control which appears on neither pedal in its original form. Add up the possible tone permutations and, well, you’ll probably be less occupied with the accuracy of the circuits, and more excited about harnessing the copious killer tones here.
Pick A Door
Of the three modes, the boost is the most user friendly and easy to apply to a base tone that just needs heft and body. It’s also great for demonstrating the basic duality in the king and blues voices—which align along a Marshall/Fender divide. The blues, or Marshall-like side feels considerably more compressed as a boost, but it positively rings in the high-mid zone. If you want a guitar to be boss in a mix it dishes the goods. But it’s agreeable too, and flattered PAFs, Telecaster single-coils, Wide-Range humbuckers, and a Rickenbacker 12-string—lending all of them an infectious, excited edge. Matched with an EL84 amp it can feel a touch redundant, but with 6L6 amps it shines. The king, or more Fendery side, sounds comparatively scooped. It feels much less hyperactive, and it excels in the clean, low-gain range, but it also gets squishy when you dig in.
These same qualities are very apparent in the overdrive mode. Each voice sounds more compressed than the boost mode. But the higher reaches of the gain controls yield treasure. Here again, the blues side was explosive—sounding at many settings like Malcolm and Angus Young after consuming a bag of firecrackers. Angry but fun. The king’s OD side, at high gain range, sounds much more like a mid- to late-’60s Bassman at high volume: crunchy, but softer around the edges. Each of these voices can be nudged into more savage extremes by the high-gain toggle, which depending on your amp and guitar, can be surprisingly airy to downright sizzly.
The distortion mode kicks the high-midrange in the pants, but retains much of the overdrive mode’s basic coloration. It’s an especially cool match for 6L6 amps—especially on the king side. But the way the distortion modes remain responsive to dynamic input like volume and touch variation is impressive. Distortions can often sound quite binary—either raging or gobbling up midrange oxygen. Both distortions in the Throne of Tone give you gray area to work with that can range down to chiming clean tones.
The Verdict
The original King of Tone and Bluesbreaker pedals are revered for good reason. And if Warm Audio’s take on the two circuits represents even 80 percent of those pedals’ prime tonality, you’ll still hear and feel what makes them special. As a whole, the Throne of Tone is adaptive and versatile. The kind of pedal that could save your hide and solve problems in a studio. But it could work the same magic in a live situation, especially one with a backline surprise in store. In performance, the vertically oriented mini toggles, which are situated perilously close to the bypass switches, could be a liability. I accidentally switched the gain and mode switches with my toe more than once. That’s a shame, because they make experimentation so much easier than when DIP switches are in the mix. It’s hardly a dealbreaker, though. For $229, the Throne of Tone offers a very big bucketful of tone options that can span civilized and rabid.
Though the business of cloning pedals is competitive (and endless fodder for frothing Reddit denizens), I appreciate when a pedal company offers a useful twist on an established formula.Warm Audio accomplishes this with the Throne of Tone. It is clearly inspired by theAnalog Man King of Tone. But it is also very obviously a nod to the Marshall Bluesbreaker, the pedal that Mike Piera used as a departure point for his KOT design. The Throne of Tone, though, might mark the point at which the snake bites its tail. It cross-pollinates the circuits in a dual overdrive that opens up many, many tone-coloring avenues and options.
Split Personality
Mike Piera ripped up a friend’s Bluesbreaker to build the first King of Tone. But by the time he rewired it, it was a different pedal altogether. To the extent that the KOT and Bluesbreaker sections are accurate in the Throne of Tone, the differences between the original Bluesbreaker and King of Tone are easy to hear. It’s hard to accurately assess the accuracy of the Throne of Tone’s two circuits without a real-deal King of Tone or Bluesbreaker at hand. But I’ve played through both as well as excellent clones, and in both sound and feel, both Throne of Tone circuits are in the ballpark and better.
In very general terms, that means the “king” side is a bit less aggressive, darker, and more dynamically responsive to changes in pick intensity—especially when you want to go from gnarly to truly clean. The “blues” side is a bit more dynamite, revved up, and lively in the midrange. It’s more immediate and a bit harder to keep on a leash for dynamic purposes. But the Throne of Tone is a great multiplier—and mixer—of these qualities, because you can experience each basic voice through the lens of high gain and low gain settings, a boost, an overdrive or a distortion. Additionally, output from each side can be modified with a presence control which appears on neither pedal in its original form. Add up the possible tone permutations and, well, you’ll probably be less occupied with the accuracy of the circuits, and more excited about harnessing the copious killer tones here.
Pick A Door
Of the three modes, the boost is the most user friendly and easy to apply to a base tone that just needs heft and body. It’s also great for demonstrating the basic duality in the king and blues voices—which align along a Marshall/Fender divide. The blues, or Marshall-like side feels considerably more compressed as a boost, but it positively rings in the high-mid zone. If you want a guitar to be boss in a mix it dishes the goods. But it’s agreeable too, and flattered PAFs, Telecaster single-coils, Wide-Range humbuckers, and a Rickenbacker 12-string—lending all of them an infectious, excited edge. Matched with an EL84 amp it can feel a touch redundant, but with 6L6 amps it shines. The king, or more Fendery side, sounds comparatively scooped. It feels much less hyperactive, and it excels in the clean, low-gain range, but it also gets squishy when you dig in.
These same qualities are very apparent in the overdrive mode. Each voice sounds more compressed than the boost mode. But the higher reaches of the gain controls yield treasure. Here again, the blues side was explosive—sounding at many settings like Malcolm and Angus Young after consuming a bag of firecrackers. Angry but fun. The king’s OD side, at high gain range, sounds much more like a mid- to late-’60s Bassman at high volume: crunchy, but softer around the edges. Each of these voices can be nudged into more savage extremes by the high-gain toggle, which depending on your amp and guitar, can be surprisingly airy to downright sizzly.
The distortion mode kicks the high-midrange in the pants, but retains much of the overdrive mode’s basic coloration. It’s an especially cool match for 6L6 amps—especially on the king side. But the way the distortion modes remain responsive to dynamic input like volume and touch variation is impressive. Distortions can often sound quite binary—either raging or gobbling up midrange oxygen. Both distortions in the Throne of Tone give you gray area to work with that can range down to chiming clean tones.
The Verdict
The original King of Tone and Bluesbreaker pedals are revered for good reason. And if Warm Audio’s take on the two circuits represents even 80 percent of those pedals’ prime tonality, you’ll still hear and feel what makes them special. As a whole, the Throne of Tone is adaptive and versatile. The kind of pedal that could save your hide and solve problems in a studio. But it could work the same magic in a live situation, especially one with a backline surprise in store. In performance, the vertically oriented mini toggles, which are situated perilously close to the bypass switches, could be a liability. I accidentally switched the gain and mode switches with my toe more than once. That’s a shame, because they make experimentation so much easier than when DIP switches are in the mix. It’s hardly a dealbreaker, though. For $229, the Throne of Tone offers a very big bucketful of tone options that can span civilized and rabid.
Attack—essentially the rate and intensity with which a note rises in volume from its point of creation—is one of the coolest musical expressions you can mess with. If you play an instrument from the violin family it’s a fundamental part of your vocabulary. It’s used frequently in synthesis to conjure spooky, low-gravity atmospherics, and it’s an essential tool for taking the front end off some psychotic Moog sound that might otherwise explode like a foghorn six inches from your ear.
Guitar players know the potential of this effect well too. Volume swells can drastically recast a guitar line—evokingreverse tape,pedal steel, and deep space. But doing it well is not easy. Even on guitars like theStratocaster that lend themselves to volume swells by design, it takes technique, practice, and usually a very flexible pinky finger to make it work right. Electro-Harmonix’s Swello, which has origins in the attack filter section of the POG2, can do a lot of that work for you. But it’s capable of more than simple swells, with the ability to generate envelope filter- and wah-like sounds, big synth-style pads that are ripe forlooping, and much stranger fare.
Swing in Smoothly
Though they can be mellowing, soft attack and volume swell effects aren’t always subtle. For many players that prize precise, immediate attack, they are anathema. Swello—especially in the sans-filter “green” mode—is great at backgrounding the effect and making it more subliminal. At the lowest attack levels, you can use Swello in a capacity similar to a compressor to soften picking irregularities. At slightly higher but still subtle settings, it imparts a beautiful legato quality to melodic lines—especially enchanting in understated or deeply ambient delay and reverb contexts. At much slower attack rates, it evokes lush pedal steel tones and remarkably natural volume pedal or cello-like effects. There’s a lot of range to explore in the attack control alone.
"Swello ’s capable of more than simple swells, with the ability to generate envelope filter- and wah-like sounds, big synth-style pads that are ripe for looping, and much stranger fare."
While the Swello’s control set is minimal, players without experience in synthesis or in using filters and envelopes with guitar may find them less than intuitive. This isn’t a shortcoming of the EHX design—it’s simply inherent to the complex interplay between filter and attack effects. If you start twisting knobs casually and with no particular intent you can end up with filter and attack combinations that make a guitar sound 30 feet underwater—if not altogether absent. So, it pays to move slowly though these controls, observe the sensitivities in their interactions and pay attention to how very small, incremental changes—as well as where you play on the fretboard—can alter the response and output. Though getting to your destination can be tricky and require patience, there are many surprises to find along the way.
Overtone Organizer
As a player that uses volume swells as both an expressive tool and crutch, I loved Swello’s very natural volume pedal and cello-like effects. But I also own a POG2 and treasure that pedal’s capacity to add -2-octave content to an upswelling tone. That can be a preposterously big sound with reverb (the low synth parts in Vangelis’ Blade Runner opening sequence and the Golden Gate Bridge foghorn at the distance of a couple miles are a couple handy points of reference). And there’s plenty of it here when you get a deep resonant peak, slow attack, and filter modulation working in sync, and hang out on the low strings.
As with the POG2, boosting the high frequencies can make the pedal sound less organic—and at times even a bit cloying. Some settings also introduce digital artifacts, most noticeable in the quackier, mid-forward envelope filter-style tones. These sounds can be fun, but they’re not the Swello’s strong suit (and may disappoint players that demand vintage Mu-Tron authenticity from envelope filters). That said, there are plenty of ways to use high-frequency emphasis for pleasant coloration and to shape the attack, and at many such settings the output is largely free of digital aftertaste.
The Verdict
Swello, as the name suggests, specializes in very cello-like volume swells that sound organic, and enable you to keep your fingers on the strings and your feet away from expression pedals. At less than $150, it’s a great value for the slow-attack effects alone. However, players who explore its compression-like dynamics and the vast, unconventional tones found at atypical filter frequency and modulation settings will discover that the Swello is far more than it appears—truly greater than the sum of its parts.
Like most of you, I would guess, I’ve never had the pleasure of playing aDumble amp. I have a fair idea of what they are supposed to sound like thanks toStevie Ray Vaughan and, presumably, David Lindley and Henry Kaiser (I’m never sure what amp I’m hearing on records from those two mad geniuses). But I definitely don’t know how a Dumble feels, or how it sounds up close in a room. So, I have to take NUX’s word for it that they deliver on the Steel Singer—an overdrive inspired by the Dumble Steel String Singer.
Fat and Snappy
While I can’t comment on the Steel Singer’s ability to perfectly ape a Dumble, there is a lot of reason to recommend the NUX Steel Singer as an overdrive. As a light drive or near-clean boost it can be a great thickening agent (at bassier filter settings), or a better-than-serviceable treble booster at toppier filter settings. At its trebliest extremes it can be a bit crispy, so you should take care. Additionally, the NUX tends to move beyond light drive pretty quickly—requiring only a slight bump in pedal to filthy up a Deluxe Reverb and Stratocaster.
To many ears, single coils and clean Fender-style amps might be the most natural and well-suited companions to the Steel Singer. In these setups, the pedal adds discernible edge in the midrange, while retaining the scooped essence of those formulas. Humbucker users can get in on the fun, too, and a PAF can coax many Plexi-like drive tones from a Deluxe Reverb. British-style amps, however, are less accommodating to the NUX’s charms. AC15-style and 18-watt Marshall-style settings on a Carr Bel-Ray, for instance, clashed with the NUX at times, a setup where klones and TRS-style pedals got along reasonably well.
The Verdict
To many ears, single coils and clean Fender-style amps might be the most natural and well-suited companions to the Steel Singer.
There are two keys to success using the NUX Steel Singer. One is to keep the gain and tone at relatively modest settings and out of the range where merely excited tones become fried. The second is to expect the best results with single coil pickups and clean Fender-style amps. This makes sense. Dumble’s Steel String Singer is, in many respects, an evolution of black-panel Fender designs. And if the goal is to create smooth overdrive and boost tones, a pedal that dovetails more precisely with that Fender-style profile is a smart move. That isn’t to say there aren’t joys to be found in a Steel Singer/humbucker combo, or even with an AC30. But such tones will be better suited for more adventurous players less aligned with classic amp-drive results.
Since it was first introduced in 1958, Vox has released myriad iterations of the AC15 combo—built variously in England and Asia, and offered in both hand-wired and PCB formats. The new AC15 Hand-Wired suggests a strictly old-school ethos, but several of its features—most notably a move from EF86 to 12AX7 preamp tubes—are deviations from vintage form. That does result in a different feel in some situations; at times it sounds and feels more like a half-power, 1x12 AC30 than a vintage AC15. But this iteration is arguably more flexible than its predecessor, too.
Channel Crossing
Given the microphonic tendencies of EF86 tubes, the switch to 12AX7s is an intriguing and practical move. Elsewhere among the tube complement, there’s a 12AT7 for the preamp and phase-inverter, two EL84s in the output stage for 15 watts RMS, and a GZ34 tube rectifier. It’s all housed in a classic Vox combo cab measuring 22 1/4"x23 1/4"x1 1/2".
The AC15 Hand-Wired’s normal channel has just a single knob for volume. But its voicing can be tweaked via a bright switch and the tone cut knob in the master section, and there’s also a boost switch to increase gain. The top boost channel features volume and dedicated treble and bass controls, but no boost or bright switch. Both channels have high and low inputs, and the latter can be handy for taming hot humbucker-equipped guitars.
The fine-tuning capabilities of the amp extend to the footswitchable, tube-driven, spring reverb circuit, which has a tone control in addition to its level, enabling you to fine-tune the frequency emphasis of the reverb itself. Send and return jacks for the effects loop—along with a bypass switch and a –10/+4 dB level switch for compatibility with both rack and pedal effects—are smartly positioned along the lower edge of the upper-back panel, rather than on the underside of the chassis. Dual speaker-outs have an impedance switch for 8- and 16-ohm operation. (The combo’s Vox-labeled Celestion Alnico Blue requires the latter.)
Vox was careful to reproduce the windings of a vintage AC15 output transformer circa 1963, which results in a heftier chunk of metal than you might expect in an amp this size. Vox makes up some of that weight by using slightly thinner plywood for the cabinet walls, which are just less than 1/2" in thickness—matching vintage specifications and, in Vox’s estimation, enhancing resonance and dimensionality. As with many AC15s past, the transformer and alnico speaker help push this new edition to 50 lbs, making for a surprisingly heavy combo of this size and output power. It might have been nice for Vox to slim things down. On the other hand, the amp might lose what turns out to be a strong, audible vintage spirit without those heavier design elements.
Chiming In
Paired with a Gibson ES-335 and a FenderTelecaster, the AC15 Hand-Wired plated up many impressive slices of vintage Vox tone, with plenty more versatility on top. With all knobs at noon and the boost and bright switches on the normal channel engaged, the two channels sound remarkably similar. There might be just a touch more grind and sparkle on the top boost side, but it’s close! At these levels, both channels still summon plenty of break up with a Telecaster. Switching to the ES-335’s humbuckers predictably kicks the overdrive up a notch at the same settings.
The boost switch on the normal channel isn’t always a breeze to manage. It delivers a pretty big jump in gain and, with it, a slightly ragged edge at some settings. With both boost and bright switches down, though, the normal channel is rich, warm, and muscular, and makes an excellent, adaptable platform for gain pedals (in my case an Analogman Prince of Tone and a Wampler Tumnus Deluxe). Knock this normal channel volume up to around 2 o’clock and it segues into toothsome sounds that dip into clipping under heavier pick attack.
Arguably the most delectable tones are found in the top boost channel with all three knobs set to around 11 o’clock. Here, the AC15 Hand-Wired achieves its closest approximation of vintage Vox tone: chewy midrange, lots of chime and sparkle in the highs, and a dynamic edge-of-breakup touch sensitivity that you can control and vary via pick attack. Cranked up, the top boost channel roars with a throaty, shimmery vintage lead tone, although at the expense of the delectable dimension and clarity achieved at lower volumes.
The amp’s master volume, by the way, is very effective at tailoring the AC15 Hand-Wired for a range of room requirements, and is essential for smaller venues. This amp is loud when maxed—probably a lot louder than you’d expect from a 15-watt 1x12" combo—which is another classic characteristic of the AC15. It’s worth noting that things can get a little ratty with the master below 10 o’clock and either channel volume up high, but that’s par for the course with such circuits.
The Verdict
Vox’s new AC15 Hand-Wired combo does a good job of capturing much of the vintage-voiced spirit of the classic while offering many features that are must-haves for modern guitarists less burdened by complete vintage correctness. And if it’s not a point-perfect reproduction, it honors the sound and spirit of the original—and looks the part onstage, too.