Boss Finally Gets Fuzz Right: The FZ-1W Waza Craft and the Silicon Revolution Nobody Expected

For four decades, Boss made exactly zero original fuzz pedals. They made fuzz-adjacent things — the FZ-2’s Japanese transistor weirdness, the FZ-3’s one-knob simplicity, the FZ-5’s digital recreation of three classic circuits — but none of these were truly Boss fuzz the way the DS-1 is Boss distortion or the SD-1 is Boss overdrive. They were cover versions. Then came the TB-2W Tone Bender collaboration with Sola Sound in 2021, which ran out before most players could even try one, and Boss had a decision to make.

The answer was the FZ-1W Waza Craft Fuzz: the first all-new analog fuzz circuit Boss had designed from scratch in over forty years, not based on any existing Boss pedal, engineered specifically so it wouldn’t sell out in a week. It’s a different kind of Waza Craft pedal — no Standard/Custom toggle, no loyal recreation of a beloved original — just Boss’s engineering team spending years chasing what they called “our dream vintage sound,” then building something nobody had made before.

From TB-2W to FZ-1W: How Boss Finally Committed to Fuzz

Boss’s previous relationship with fuzz was complicated. The FZ-2 Hyper Fuzz (1993–1997) had a devoted cult following but was deliberately Japanese in character — not the British Tone Bender or American Fuzz Face lineage that dominates the vintage fuzz conversation. The FZ-3 (1993–1999) was a cleaner, simpler fuzz that did the job without drama. The FZ-5 (2008–present) took a different approach entirely, using digital COSM modeling to simulate three specific vintage units — the Maestro FZ-1A, the Dallas Arbiter Fuzz Face, and the EHX Big Muff. Technically impressive, but it wasn’t an analog fuzz circuit and audiophiles never let Boss forget it.

The breakthrough came from a partnership. In 2021, Boss collaborated with Sola Sound — the London company behind the original Tone Bender — to create the TB-2W. Working with Anthony Macari of Sola Sound, Boss’s engineers spent months inside vintage Tone Bender MK I and MK II units, reverse-engineering what made them exceptional and learning how to replicate those qualities with modern manufacturing. “Working with Sola Sound, we felt the passion as fans,” Boss president Yoshi Ikegami explained. “That project had a huge impact. That’s why we decided to make FZ-1W at this time.”

The TB-2W shipped around 3,000 units. Scalpers got many of them before genuine players could, and Ikegami was openly disappointed: “I was really disappointed about the scalpers. This time we wanted there to be no hassle to get a pedal.” The FZ-1W was the correction — designed as a full-production Waza Craft pedal available to anyone who wanted one, while still applying everything learned from the Sola Sound collaboration.

The “1” in FZ-1W carries intentional weight. Boss chose it specifically to show “respect for the classic circuits that helped shape the sound of rock guitar” — acknowledging the heritage without pretending to replicate any single pedal. What they built instead was their own interpretation: a silicon fuzz that doesn’t try to fake germanium, doesn’t hide behind digital modeling, and doesn’t apologize for being a modern instrument.

The Silicon Decision: Why Not Germanium?

Every conversation about the FZ-1W eventually reaches the same question: why silicon? The vintage fuzz world is dominated by germanium romanticism. The NKT275 transistors in original Fuzz Faces, the Newmarket germanium in early Tone Benders — the lore around these components is substantial, and many players believe germanium sounds categorically superior. Boss disagrees, and they have a case worth hearing.

“We tried to make a circuit with germanium transistors,” Ikegami confirmed. “But silicon transistors provided much more stable sound and response behavior.” The practical reality of germanium fuzz is that it changes constantly. Room temperature affects it. Battery voltage affects it. The same pedal can sound different in the afternoon than it did in the morning, different on a warm stage than in a cold backstage. “Temperature and battery voltage change the sound with germanium transistors,” Ikegami said. “Silicon transistors are stable and easy to make in larger quantities.”

Beyond consistency, silicon offers sonic advantages that matter for the FZ-1W specifically. Silicon transistors run at significantly higher gain than germanium — the FZ-1W uses this to expand the usable range of the Fuzz knob dramatically. It also means lower noise at high-gain settings, which anyone who has ever chased the noise floor on a vintage germanium unit will appreciate. The trade-off is that silicon fuzz sounds different from germanium fuzz: typically brighter, more aggressive, with a faster attack and less of the soft, woolly compression that characterizes germanium at its best.

Boss’s engineering team then used the inherent characteristics of their silicon circuit as a feature rather than a compromise. The FZ-1W’s extreme sensitivity to input volume — whether from a guitar’s volume knob or picking dynamics — is a direct consequence of the silicon circuit’s design. “Extreme sensitivity to input volume means we are providing much more dynamic expression,” Ikegami explained. “That is an important point for a good musical instrument.”

Specifications

Spec	Boss FZ-1W	EHX Big Muff Pi	ZVEX Fuzz Factory (Vexter)
Released	2021	1969 (current version)	1990s (Vexter 2000s)
Circuit type	Analog silicon, all-new design	Analog, 4-stage cascaded silicon	Analog, 3 germanium transistors
Transistors	Silicon (type undisclosed)	Silicon (2N5088 or similar)	NOS germanium (2 + 1 booster)
Bypass	Buffered (no click)	True bypass	True bypass
Controls	Level, Fuzz, Tone; Mode switch	Volume, Tone, Sustain	Volume, Gate, Compress, Drive, Stab
Power	9V battery or 9V DC	9V battery or 9V DC	9V battery or 9V DC
Current draw	~20mA (est.)	~3.5mA	<3mA
Price new	~$199 USD	~$97 USD	~$199 USD (Vexter)
Price used	~$120–155 USD	~$50–75 USD	~$100–150 USD
Made in	Japan	USA	USA

Two Modes, Two Philosophies

The FZ-1W breaks from every other Waza Craft pedal in how it implements its mode switch. Every other Waza Craft pedal toggles between a “Standard” mode (the classic circuit behavior) and a “Custom” mode (Boss’s enhanced version). The FZ-1W doesn’t do this — instead it offers “Vintage” and “Modern,” two genuinely distinct sonic personalities that share the same physical controls but behave differently enough that they’re effectively two different fuzzes in one enclosure.

Vintage Mode

Vintage mode is what Ikegami calls “authentic fuzz” — an old-school rasp with the wide expressive range that characterizes the best ’60s fuzz units. At lower Fuzz settings it can back off to the kind of frayed, slightly overdriven texture Neil Young has been chasing for fifty years, where the fuzz is more texture than effect. At moderate Fuzz it produces the grinding, bee-in-a-tin-can buzz of the Tone Bender and Fuzz Face era. At maximum Fuzz it saturates into rich, sustaining distortion that still maintains enough harmonic complexity to avoid sounding processed.

The Tone knob in Vintage mode operates as a tilt EQ: it simultaneously adjusts both high and low frequencies in opposite directions. Clockwise adds brightness while reducing low-end weight; counterclockwise adds warmth and bass while rolling off the highs. This is different from a conventional tone control — there’s no position that adds both bass and treble, and no position that cuts both. It’s a trade-off, which means you’re always choosing a balance point rather than independently sculpting the frequency response. The sweet spot for most applications is roughly 11 o’clock to 1 o’clock, where there’s enough high-frequency presence to cut through a mix without the harsh, fizzy quality that uncontrolled silicon fuzz can develop at the top end.

Modern Mode

Modern mode is the FZ-1W’s own voice — higher gain, more midrange focus, and a different character entirely from anything in the vintage fuzz canon. Boss describes it as “a bolder, more powerful tone for today’s musical styles,” and the description is accurate. Where Vintage mode’s saturation has a certain openness and dynamic swing, Modern mode compresses more aggressively and pushes the midrange forward, which helps it cut through dense mixes in ways that vintage-voiced fuzzes can struggle to do.

At lower Fuzz settings in Modern mode, the pedal acts as what Ikegami calls a “hairy boost” — accentuating the mids while adding just enough fuzz character to add richness without overwhelming the fundamental tone. This is a genuinely useful live-sound setting that many boutique fuzz pedals simply can’t access because their minimum gain is still quite high. At moderate Fuzz settings Modern mode produces the ZZ Top-adjacent hard rock crunch that the mode was built for. At maximum Fuzz it develops the flute-like, singing quality on sustained notes that’s one of silicon fuzz’s most distinctive characteristics — the kind of lead tone that sits in a specific frequency pocket and refuses to disappear in a band context.

The Tone knob behaves differently in Modern mode. As Ikegami explained: “Modern mode doesn’t lose mid character, so you can control the high-frequency and low frequency at the same time.” The tuning is set so that the midrange remains largely stable while the extremes are adjusted — in practical terms, this means the pedal maintains its cutting, present quality across the full Tone sweep rather than becoming thin or woolly at the extremes.

The Volume-Knob Interaction

One of the FZ-1W’s most underappreciated capabilities is how it responds to guitar volume attenuation. Most fuzz pedals — especially the vintage-voiced silicon variety — clean up only partially when you roll back the guitar’s volume. The FZ-1W, by design, responds more dramatically: rolling back to about 5 or 6 on the guitar volume in either mode shifts from full saturation to a crispy, articulate crunch, and continuing further toward 2 or 3 produces a nearly-clean tone with just a hint of fuzz character in the transients.

“If you turn the fuzz knob over three o’clock, you get a very rich distortion,” Ikegami noted. “And if you turn down your guitar volume, you can get crispy, clean, crunch sound.” This matters practically because it means a single guitar-to-amp path with the FZ-1W can cover clean-to-fuzz transitions mid-song using only the guitar’s volume knob — no additional pedals, no tap-dancing on switches. It’s the way Jimi Hendrix used his Fuzz Faces, and it’s the way the FZ-1W was designed to be played.

Buffered bypass on the FZ-1W is worth noting here. Unlike true-bypass pedals that can pop when switched, the FZ-1W’s buffer handles switching silently. The buffer also means the FZ-1W doesn’t interact with the pickup impedance in the way that original Fuzz Faces do — the Fuzz Face is notoriously sensitive to what’s directly before it, to the point where a buffer before it changes its character substantially. The FZ-1W is more consistent across different signal chains, which is a reasonable trade-off in an age where most pedalboards have at least one or two buffered pedals already.

Famous Players: An Honest Assessment

The FZ-1W was released in 2021, which means it’s a recent enough addition to the market that comprehensive, verified artist documentation is limited. Equipboard notes several professional players using the FZ-1W, but as of this writing, no confirmed primary-source documentation — Boss official artist pages, Premier Guitar Rig Rundowns, manufacturer interviews — has surfaced to definitively name specific professional users and their specific applications for this pedal.

This is consistent with how Waza Craft pedals often develop their player base: quietly, through touring professionals who discover them independently rather than through coordinated endorsement programs. The FZ-1W’s sonic character — particularly Modern mode’s mid-forward cutting quality — is well-suited to the heavy rock and metal spectrum where players tend to build their rigs methodically rather than chasing publicly documented gear lists. The pedal’s consistency advantage over vintage germanium units also makes it attractive to touring musicians for whom reliability is a non-negotiable.

Boss’s historical fuzz lineage does include some notable player connections in adjacent territory. Stephen Carpenter of Deftones has an extensive documented history with ZVEX pedals including the ZVEX Fuzz Factory. Billy Corgan’s connection to fuzz runs through various vintage and boutique units. But these are Fuzz Factory and vintage Muff associations, not FZ-1W endorsements — and attributing them to the FZ-1W would be inaccurate. The honest answer is that the FZ-1W is finding its users organically, and the documented touring roster will develop over time.

Tone Recipes and Settings

Comparisons and Context

FZ-1W vs. Electro-Harmonix Big Muff Pi

The EHX Big Muff Pi is the most-used fuzz in the world by sheer volume, and it represents a different approach to fuzz entirely. The Big Muff uses four cascaded gain stages with symmetric silicon clipping diodes — the result is a thick, sustaining, harmonically rich fuzz that’s warm in a way that silicon circuits don’t usually achieve. The FZ-1W uses a different topology entirely, which gives it more dynamic range and more sensitivity to picking attack while sacrificing some of the Big Muff’s sheer saturated mass.

In practical terms: if you want a fuzz that sustains almost infinitely and sits in a specific frequency pocket, the Big Muff is still the benchmark at its price. If you want a fuzz that responds to your technique, cleans up with the volume knob, and offers a genuinely different character in a second mode, the FZ-1W covers ground the Big Muff can’t. They’re complementary rather than competing.

FZ-1W vs. ZVEX Fuzz Factory

The ZVEX Fuzz Factory uses NOS germanium transistors with multiple feedback paths that make the stability of the circuit a parameter rather than a given. The Fuzz Factory’s appeal is partly its unpredictability — the Stability knob can push it into oscillation, and every unit sounds slightly different. The FZ-1W is the philosophical opposite: Silicon transistors, consistent behavior in any temperature, buffered bypass with no clicks. The Fuzz Factory rewards players who want to explore fuzz as a temperamental instrument. The FZ-1W rewards players who want fuzz to be a reliable, consistent tool.

FZ-1W vs. Boss DS-1 Distortion

Many players default to the Boss DS-1 Distortion when they want heavy gain from a Boss compact. The DS-1 and FZ-1W are fundamentally different animals — the DS-1 uses hard clipping with a very different circuit topology that produces a more even, compressed distortion character rather than fuzz’s raspy, harmonically complex quality. The DS-1 doesn’t clean up significantly with guitar volume the way the FZ-1W does, and its character doesn’t shift between modes. For players who want consistent, controllable distortion, the DS-1 remains the standard. For players who want expressive, dynamic gain with fuzz character, the FZ-1W fills a different role.

FZ-1W vs. Boss FZ-5 Fuzz

The FZ-5 is the most directly comparable Boss product — both are Boss fuzzes, both are available at street prices. The difference is fundamental: the FZ-5 is a COSM digital modeling pedal that emulates three specific vintage fuzzes (Maestro FZ-1A, Fuzz Face, Big Muff). It sounds convincingly like those pedals in most situations. The FZ-1W is an all-analog circuit that isn’t trying to sound like any specific vintage pedal — it’s Boss’s original voice. If you want to sample three classic fuzz flavors for comparison or live switching, the FZ-5 is the tool. If you want an analog circuit with the tactile response and dynamic sensitivity of a real fuzz pedal, the FZ-1W is the better choice.

Buying Guide

The FZ-1W has a street price of approximately $199 USD at major US retailers, with occasional sales bringing it to the $180-190 range. Used market pricing on Reverb runs approximately $120-155 for units in excellent condition, which represents fair value given that the pedal is still in production. There are no special editions, limited runs, or collector variants of the FZ-1W — unlike the TB-2W Tone Bender that preceded it, Boss made the FZ-1W a standard production item specifically to avoid the scarcity problem of the TB-2W.

At $199, the FZ-1W costs twice the price of the EHX Big Muff Pi and about the same as the ZVEX Fuzz Factory Vexter. The premium over the Big Muff buys you: two genuinely distinct modes, Japanese manufacturing and quality control, a more dynamic circuit with wider gain range, and the Boss warranty and global support network. Whether those factors justify the premium depends entirely on what you need from a fuzz pedal.

The FZ-1W is manufactured in Japan, which is consistent with the Waza Craft standard. Boss’s standard compact pedals are made in Taiwan; Waza Craft models are made in Japan with premium components and more intensive quality control. The Japanese manufacture is one reason the Waza Craft premium exists and, in most players’ experience, one reason the build quality and consistency are noticeably higher than the standard Boss compact line.

Power considerations are standard Boss: 9V center-negative DC or 9V battery. The FZ-1W’s current draw is moderate for a fuzz pedal and compatible with most pedalboard power supplies. It will work on any standard pedalboard power supply that provides an isolated 9V output, which is the most common configuration.

Pedalboard Placement and Ownership Notes

The FZ-1W’s buffered bypass changes the conventional placement rules for fuzz pedals. Traditional fuzz wisdom — especially for Fuzz Faces and germanium units — says fuzz goes first in the chain, before any buffers, because the buffer changes the pickup impedance load that germanium fuzzes depend on for their character. The FZ-1W doesn’t have this limitation. Its buffered bypass and silicon circuit are relatively indifferent to what comes before it in the signal chain.

In practice, placing the FZ-1W at the beginning of the chain is still often ideal — before overdrives, modulation, and delay — because fuzz responds best to the guitar signal before it’s been processed. But if your signal chain includes a tuner or a Klon-style buffer-always-on pedal at the front, the FZ-1W won’t be compromised by it the way a Fuzz Face would.

Stacking the FZ-1W with other pedals is straightforward. Before a boost pedal: the boost pushes the FZ-1W harder, which increases saturation in both modes (useful for solos without changing the Fuzz setting). After an overdrive: the overdrive provides a saturated signal that the FZ-1W then processes differently than a clean signal — the interaction produces a more compressed, dense fuzz character that works well for heavy sustained leads. With wah: place the FZ-1W after the wah for conventional wah-into-fuzz tone (the wah filters a processed signal); place it before the wah for a very different, more controlled filtered sweep.

The Tone knob’s tilt behavior in Vintage mode rewards careful positioning with your specific guitar and amp combination. Find the Tone setting with your normal amp EQ first, then use the amp’s tone stack to trim any remaining frequency issues rather than fighting between the FZ-1W’s Tone and the amp’s tone controls simultaneously. Modern mode’s more stable midrange means less amp compensation is usually needed.

The FZ-1W’s volume-knob sensitivity is best experienced on a guitar with a high-quality, low-friction volume pot. If your guitar’s volume pot is stiff or has a taper that jumps from near-zero to almost-full too quickly, the dynamic range of the cleanup effect is compressed. This is worth addressing if you intend to use the volume-knob dynamic range as a performance technique — a good 500K audio-taper pot makes a material difference.

Frequently Asked Questions