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The Anti-Tube Screamer: Why the Electro-Harmonix Crayon Draws Outside the Lines

The EHX Crayon Full-Range Overdrive ditches mid-hump coloring for independent Bass and Treble shaping. Your anti-Tube Screamer explained.

admin 18 min read Updated 24 September 2026

There’s a quiet revolution that happens whenever a guitarist discovers the Electro-Harmonix Crayon for the first time. They’ve spent years chasing the classic overdrive sound — the warm, mid-pushed, harmonic crunch that the Tube Screamer family and its thousand descendants have defined for five decades. Then they plug in the Crayon, turn up the Gain, adjust the Bass and Treble to taste, and suddenly realize they’ve been solving the wrong equation. The Crayon doesn’t boost the mids and roll off the lows. It doesn’t impose a voicing on your signal. It takes your guitar’s full frequency spectrum and applies gain to the whole picture, leaving the sculpting entirely to you. For players who’ve been fighting the TS-style mid-hump their whole career, this is the moment the room shifts.

Released in November 2015 at a street price that barely cleared $80, the Crayon arrived without fanfare or celebrity endorsements. EHX founder Mike Matthews described it simply as “lush and rich, with a warm tone.” That understatement conceals what the Crayon actually offers: a fundamentally different philosophy for how an overdrive should interact with your signal chain. Understanding that philosophy is understanding what makes the Crayon worth writing about in 2026, a decade after its release, when it still sits on pedalboards from indie rock stages to jazz club backlines.

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The Full-Range Concept: What It Actually Means

The term “full-range overdrive” sounds like marketing copy, but it describes something precise about circuit design. Most overdrive pedals — the Tube Screamer being the archetypal example — use a frequency-selective clipping network. The TS-808 and its descendants apply a frequency-response curve that rolls off the low end (reducing bass flabbiness under gain) and boosts the mid-frequencies (typically around 720Hz to 1kHz) before distorting the signal. The result is the iconic TS tone: warm, chewy, mid-forward, excellent for cutting through a band mix, and completely unmistakable once you know what you’re hearing.

The Crayon’s circuit does none of this. It applies gain across the full audio spectrum — bass, midrange, and treble — without pre-shaping the frequency response before clipping. This means the fundamental character of your guitar and amp survives the overdrive process intact. A Stratocaster through a Fender Deluxe Reverb running through the Crayon still sounds like a Stratocaster through a Fender Deluxe Reverb, just with saturation added. A Les Paul through a Marshall stays a Les Paul through a Marshall. This is either a feature or a limitation depending on what you need from your overdrive.

Where the TS-style circuit makes a sonic commitment on your behalf — mid-forward, tight, defined — the Crayon says nothing at all until you speak through its Bass and Treble controls. This is the architectural decision that separates the Crayon from the vast majority of its competition. Rather than a single Tone sweep (which on most OD pedals rolls from dark to bright through a fixed EQ curve), the Crayon gives independent Bass and Treble controls. You can boost the bass while cutting the treble. You can push the treble without touching the low end. You can add more lows than highs, or vice versa, or both together. The resulting tonal range is substantially wider than a single Tone knob allows, and it means the Crayon can convincingly approximate the sound of a mid-humped overdrive (by boosting Bass and Treble together, which creates a relative mid-scoop, or conversely by keeping both flat and letting the amp’s own midrange presence come through) without being locked into any single voicing.

Origins: The Crayon in EHX’s Timeline

Electro-Harmonix launched the Crayon in November 2015, officially announcing it through a Premier Guitar press release dated November 17, 2015. The launch list price was $83.63 — a price point that positioned the Crayon firmly in the “accessible professional” category rather than the boutique tier. EHX founder Mike Matthews, never a man for extravagant marketing language, described his new pedal as providing “lush and rich, with a warm tone,” and noted that it was “equally adept when used by itself or when driving another overdrive pedal.” That second capability — its behavior as a boost or preamp stage before a second drive — would turn out to be one of the Crayon’s most practical assets, though it took time for the broader community to fully explore it.

The Crayon sits within EHX’s long tradition of anti-establishment overdrive thinking. The company that invented the Big Muff Pi — a fuzz circuit so aggressively itself that it inspired an entire genre of sonic excess — has always maintained a parallel catalog of more utilitarian pedals that do one thing with maximum efficiency and minimal circuit complexity. The Crayon is one of these. Where the Hot Tubes section of the Hot Wax (a later EHX dual overdrive released in 2017) uses CMOS FET clipping technology for an amp-like response, the Crayon’s analog circuit is more direct: a clean gain stage with tone controls, no tricks, no transformative voicing. The sound you put in is the sound you get out — amplified, saturated, and shaped according to your preference.

Guitarists who have spent time with the Electro-Harmonix Hot Wax will recognize the Crayon’s character immediately. The Hot Wax pairs a CMOS FET Hot Tubes section with a Crayon-derived full-range drive section — and Sound On Sound’s Paul White, reviewing the Hot Wax in February 2018, identified the Crayon-style circuit as “full-range overdrive, as opposed to something mid-focused like a Tube Screamer, producing more edge to the upper reaches of the sound but also allowing it to process low-frequency bass sounds.” The standalone Crayon delivers this same character with its own dedicated footswitch and the full range of its Bass and Treble controls unshared with any partner circuit.

Specifications

Key Specifications
Year Released2015
CircuitAnalog
BypassBuffered Bypass (note: original 2015 press release described “true-bypass mode”; current EHX spec page lists Buffered Bypass)
AudioMono
ControlsVOL, GAIN, BASS, TREBLE + footswitch
Power9V battery included; optional 9.6VDC-200mA adapter (not included)
Current Draw10mA
Dimensions4.5″ × 2.75″ × 2.1″ (nano enclosure)
MSRP (2026)$77.10 USD
Street New (2026)~$59–75 USD
Street Used Excellent (2026)~$35–55 USD
Launch List Price (2015)$83.63 USD

A note on bypass: EHX’s product page specification table lists Buffered Bypass for the Crayon, while the original November 2015 Premier Guitar press release — sourced from EHX’s own announcement — described the footswitch as selecting “true-bypass mode.” Whether this reflects a production revision, an error in the original press copy, or a terminology discrepancy at the time of launch is unclear. The current EHX spec is Buffered Bypass, which is consistent with many EHX nano-enclosure pedals in this era. Players who use impedance-sensitive germanium fuzzes earlier in their chain should account for a buffer being present when the Crayon is engaged.

Control Breakdown

The Crayon’s four knobs represent a complete and intuitive system once you understand the underlying circuit philosophy. The VOL knob sets the output level of the pedal, ranging from unity gain through significant volume boost. The GAIN knob controls input gain — fully counter-clockwise gives a suggestion of grit, a barely-there saturation that thickens the clean tone without obviously breaking up. Fully clockwise delivers what EHX describes as “classic distortion,” a dense, sustained drive that still retains note definition thanks to the full-range frequency response. The usable range between these extremes is genuinely wide, covering clean boost, mild overdrive, medium crunch, and heavier saturation within a single knob sweep.

The BASS knob boosts low frequencies clockwise. Unlike a simple low-cut control, this is an active boost — turning it up adds body and weight, makes single-coil guitars sound fuller, and gives humbuckers more thump under gain. Turned counter-clockwise, it reduces the low end, which can tighten the response at higher Gain settings and prevent muddiness on instruments with strong fundamental output. The TREBLE knob works analogously: clockwise brightens the overdrive, counterclockwise darkens it. The critical functional difference from a single Tone sweep is that these two controls move independently — you can add more bass and more treble simultaneously, creating a scooped-mid voicing; you can add treble while rolling back bass for a cutting, aggressive character; or you can keep both at noon for a flat, transparent saturation that simply amplifies what’s already there.

Famous Players

The Crayon is not a pedal with a celebrity-driven origin story. EHX did not build it around a specific artist’s requirements, and no major touring star has made it a signature part of their public identity. The two professional artists documented on Equipboard as Crayon users reflect the pedal’s actual constituency: working indie musicians who value sonic flexibility over brand recognition.

Evan Stephens Hall of indie rock band Pinegrove is the most verifiably documented Crayon user in the professional space. Equipboard records photo confirmation of Hall using the Crayon at the Gothic Theatre in Denver on October 14, 2017 — a live performance documentation, not a promotional attribution. Hall is the primary guitarist and vocalist of Pinegrove, an influential indie rock/Americana act from Montclair, New Jersey, known for melodically complex arrangements and warm, layered electric guitar tones. The Crayon’s full-range character fits the Pinegrove sonic aesthetic precisely: warm overdrive that doesn’t impose a mid-forward coloring on the band’s chordally rich guitar parts, which often stack clean and dirty textures simultaneously. The live-photo documentation via Equipboard represents a credible, first-hand equipment confirmation.

Michel PT (listed on Equipboard as a singer/guitarist) is the second named artist in the Equipboard database for the Crayon. No independent primary source — no rig rundown, manufacturer artist page, or photographic documentation — has been located to corroborate this attribution beyond the Equipboard community entry. The connection is noted here for completeness but should not be cited as confirmed without further verification.

The more relevant picture of the Crayon’s actual user base comes from Equipboard’s genre data: among the platform’s users, the pedal appears most frequently in rock (65 instances), alternative rock (41), indie rock (28), metal (19), blues (18), psychedelic rock (12), indie pop (12), and progressive rock (11). This distribution tells you more about the Crayon’s practical reach than any individual artist attribution: it is a tool for musicians across styles who want gain without tonal prescription, flexibility without complexity, and a small footprint without sonic compromise.

Tone Recipes and Settings

Clean Boost with Character

Set GAIN fully counter-clockwise (or close to it). Set VOL for the output level you want — somewhere above unity for a push. Set BASS and TREBLE both at noon. The result is a light saturation boost that thickens your clean tone and gently pushes your amp’s input without adding obvious grit. This works beautifully into a Fender Deluxe Reverb or a Vox AC30 set just below natural breakup — the Crayon provides the edge-of-breakup sweetness without requiring you to push the amp volume to unsafe levels. Because the circuit is full-range, your guitar’s natural high-end and low-end character are preserved in the boost, not filtered.

Warm Rhythm Overdrive

GAIN at 9 o’clock. VOL at unity or slightly above. BASS at 1–2 o’clock (modest low-end boost). TREBLE at 11 o’clock (slight cut to prevent harshness). This gives you a warm, full rhythm tone with enough dirt for classic rock accompaniment without becoming abrasive. Especially effective with humbuckers — the Les Paul’s natural midrange presence fills the space that a TS-style circuit would have provided artificially, while the bass boost adds weight to chord voicings without blurring note definition. This is the setting that makes the Crayon effective for bands that play in the zone between clean and crunchy.

TS-Style Mid-Hump Approximation

GAIN at 10–11 o’clock. BASS at 8–9 o’clock (moderate cut). TREBLE at 10 o’clock (moderate cut). VOL adjusted for output. With both Bass and Treble reduced, the relative midrange presence increases — the Crayon’s flat response plus active low and high cuts creates a mid-forward voicing that approximates the classic Tube Screamer character. This isn’t identical (the clipping topology is different), but it demonstrates the Crayon’s versatility: it can impersonate the pedal it was designed as an alternative to. Compare this setting with a dedicated Ibanez TS9 Tube Screamer to hear the tonal philosophy difference even when targeting the same general territory.

Full-Range Crunch

GAIN at 1–2 o’clock. BASS at noon. TREBLE at 1 o’clock (slight boost). VOL at or above unity. This is the setting that defines the Crayon’s character most distinctly: a medium-to-high gain crunch that retains the full bass register and adds brightness without imposing a mid-scoop or mid-hump. Excellent for single-coil guitars where the Crayon’s treble boost brings out harmonic complexity without thinning the fundamental. Pinch harmonics and chord articulation at this setting are notably clear compared to TS-style circuits at similar gain levels, because there’s no frequency filtering removing note detail.

Lead Boost into a Second Overdrive

GAIN at 9 o’clock or below. VOL above unity (enough to push the next pedal harder). BASS at noon. TREBLE at noon. Place the Crayon before a second overdrive — a Soul Food, a Blues Driver, or even a heavier distortion — in your signal chain. The Crayon’s clean boost pushes the input of the second pedal with a full-frequency signal, increasing its saturation and harmonic response without filtering the input. Compare this to placing a TS-style pedal in the same position — the TS will color the boost with its own mid-hump character before the second stage sees the signal. The Crayon gives you a clean, uncolored input push that lets the second pedal express its own character fully. This was flagged in EHX’s original launch description as a key use case, and players who run two-drive setups will find it genuinely useful.

Bass Guitar Overdrive

GAIN at 10 o’clock. BASS at 2 o’clock (notable boost). TREBLE at 10–11 o’clock (slight cut). VOL at unity or above. The full-range circuit means the Crayon does not attenuate bass frequencies through the clipping process — the fundamental is preserved even at higher gain settings. This makes it legitimately useful for bass guitar, where TS-style overdrives often rob low-end weight from the mix. The Bass boost at this setting compensates for any apparent mid-accentuation and ensures bass notes retain their body. EHX provides bass-specific sound clips on the Crayon product page, indicating this is an officially endorsed application.

How It Compares

The Crayon’s most natural comparison point is the category of pedals it explicitly positions itself against: mid-focused overdrives. Against the Ibanez TS9 Tube Screamer, the difference is immediately audible on low frequencies: the TS rolls off the bass before clipping, giving tighter, thinner low-end response. The Crayon keeps everything. On a Les Paul or a bass guitar, this distinction is dramatic. On a Stratocaster through a bright amp, the TS’s inherent mid-boost can be exactly what’s needed to cut through a dense mix — the Crayon doesn’t provide that mid-forward quality automatically, requiring you to dial it in via Treble reduction. Neither pedal is better; they solve different problems.

Against the Electro-Harmonix Soul Food, the comparison reveals two different transparent overdrive philosophies. The Soul Food uses JFET circuitry to approximate the Klon Centaur’s approach: a blend of clean and clipped signal, single Treble control, characteristically refined and compressed clipping character. The Crayon is tonally more open and arguably more direct — no clean blend, simpler circuit, more explicitly functional Bass and Treble controls. The Soul Food has more refined high-end texture at light gain settings. The Crayon has more flexibility and a slightly broader gain range. For players who want to stay at low gain and maintain exceptional clean character, the Soul Food may have the edge. For players who need more gain range or more EQ control over the drive character, the Crayon wins.

The Electro-Harmonix Hot Wax complicates the Crayon comparison in an interesting way: the Hot Wax contains the Crayon’s circuit as one of its two drive sections (the Crayon section, right footswitch, green LED). Players who already own a Hot Wax effectively have a Crayon on half their pedalboard. The standalone Crayon’s advantage is a dedicated footswitch on a single-purpose pedal, lower current draw (10mA vs. 75mA for the Hot Wax), and the absence of the Hot Wax’s CMOS FET Hot Tubes section if that particular flavor of drive isn’t needed. The Crayon is also slightly cheaper. If you want both voices, the Hot Wax is the rational choice. If you want the Crayon’s full-range character exclusively, on a smaller footprint with a lower power draw, the standalone wins.

Against the Electro-Harmonix East River Drive — EHX’s own take on the JRC4558D-based TS-808 circuit — the Crayon is the polar opposite within the same manufacturer’s lineup. The East River Drive is explicitly mid-humped, symmetrical soft-clipping, the canonical Tube Screamer topology. The Crayon intentionally rejects this in favor of full-spectrum response. Having both on a pedalboard gives access to the entire spectrum of overdrive philosophy within a single manufacturer ecosystem, at a combined cost of around $120 street.

The Bypass Question

A note that warrants direct address: the EHX Crayon product page specification table lists Buffered Bypass, but the original November 2015 Premier Guitar press release — quoting EHX’s own announcement copy — describes the footswitch as selecting “whether the Crayon is engaged or in true-bypass mode.” This is a genuine discrepancy between the launch documentation and the current specification. Whether the circuit was revised after initial production, or whether the 2015 press release contained an error in the copy that was never publicly corrected, is not documented in available sources.

The current EHX spec page (Buffered Bypass) is the most authoritative reference for current production units. If you are purchasing a Crayon and the bypass mode matters for your specific setup — particularly if you run impedance-sensitive germanium fuzzes earlier in your signal chain, where a buffer between guitar and fuzz can affect feel and attack — the safest approach is to verify the bypass mode with the retailer or EHX directly for your specific unit. For the majority of pedalboard configurations, buffered bypass is an asset: it maintains consistent input impedance regardless of cable length and prevents signal degradation through long chains.

Who Should Buy the Crayon

The Crayon is the right overdrive if any of the following describes your situation. First: you’ve tried multiple TS-style overdrives and found them too mid-forward or too bass-thin for your instrument, your amp, or your band’s mix. The Crayon’s full-range response is the direct solution to this complaint — it gives you the drive without the built-in voicing. Second: you play bass and want a real overdrive, not a guitar pedal that ruins your low end. The Crayon’s full-range circuit is one of the most bass-friendly overdrive options at any price point. Third: you want a boost that adds harmonics and push without coloring your second pedal’s input. The Crayon’s clean-push-into-drive-pedal capability is one of its most underrated features. Fourth: you want a single overdrive that covers a wide stylistic range at low cost — the Bass and Treble controls mean one Crayon can cover clean boost, warm rhythm drive, cutting lead, and heavy crunch across different bands or songs.

The Crayon is not the right choice if you specifically want the classic mid-hump TS sound for cutting through a Marshall stack at higher volumes — the TS’s built-in voicing is better suited for that specific application. It’s also not ideal if you want the Klon-style transparent compression character of the Soul Food, or the CMOS FET amp-like quality of the Hot Tubes. Those circuits do something specific that the Crayon does not replicate.

Ownership Notes

The 10mA current draw is low and pedalboard-friendly — significantly lower than the Hot Wax’s 75mA, and completely manageable on any standard isolated or daisy-chain power supply. The 9V battery is included, which is useful for testing but impractical for regular use given that battery replacement on nano-enclosure EHX pedals is a minor annoyance. An optional 9.6VDC-200mA adapter (the EHX 9.6DC-200) is the practical solution; EHX sells it separately.

The nano enclosure at 4.5 × 2.75 × 2.1 inches is genuinely compact and fits easily on crowded pedalboards. The buffered bypass means the Crayon actively maintains signal integrity when engaged — worth accounting for if you have other buffers in the chain. As a general rule, one quality buffer in a signal chain is beneficial; multiple buffers can interact in ways that affect high-frequency response. The Crayon’s buffer is of good quality (consistent with EHX’s standard buffer implementations) and should not cause issues in typical configurations.

Used examples appear regularly on Reverb and similar platforms in the $35–55 range for excellent condition, representing excellent value for a versatile, low-draw, compact overdrive with independent bass and treble control. The Crayon has not undergone any documented circuit revisions since its 2015 release, so older units should perform identically to current production.

Frequently Asked Questions

What does “full-range overdrive” mean on the Electro-Harmonix Crayon?

It means the Crayon applies gain across the entire audio frequency spectrum — bass, midrange, and treble — without pre-shaping the frequency response before clipping. Most overdrive pedals (especially Tube Screamer-type circuits) filter the signal before distorting it, boosting the mids and rolling off the bass. The Crayon doesn’t do this. Your guitar’s natural character, including its full low end, goes through the drive circuit intact. The tonal shaping is done after distortion, via the independent Bass and Treble controls.

Is the Electro-Harmonix Crayon true bypass?

The current EHX product page specification lists Buffered Bypass. The original November 2015 press release described the footswitch as selecting “true-bypass mode,” creating a documented discrepancy between launch copy and current specification. The current spec (Buffered Bypass) should be taken as authoritative for units purchased today. If you specifically need true bypass, confirm with the retailer for the specific unit you’re buying.

How does the Crayon compare to a Tube Screamer?

The Tube Screamer (TS9 or TS-808) applies a mid-hump and bass rolloff before clipping, creating a warm, compressed, mid-forward character. The Crayon applies gain across the full frequency range with no pre-clipping voicing. In practice: the TS will sound fuller in the midrange and tighter in the bass; the Crayon will sound fuller in the low end and more transparent in the midrange. For cutting through a dense band mix, the TS’s built-in character often helps. For bass guitar or for players who want full-frequency saturation, the Crayon is more appropriate. You can approximate a TS-style mid-hump on the Crayon by cutting both Bass and Treble, but the clipping topology remains different and the result is similar rather than identical.

What is the Crayon’s relationship to the Electro-Harmonix Hot Wax?

The Hot Wax (2017) is a dual overdrive that pairs a CMOS FET Hot Tubes section with a Crayon-style full-range overdrive section. The Crayon circuit in the Hot Wax is the same circuit as the standalone Crayon pedal. The differences: the Hot Wax costs more, draws significantly more current (75mA), has a larger footprint, and adds the Hot Tubes circuit as a companion. The standalone Crayon costs less, draws only 10mA, and is more compact. If you want only the Crayon sound, the standalone is the rational choice. If you want both drive characters with the ability to stack them, the Hot Wax makes more sense.

Can the Electro-Harmonix Crayon be used for bass guitar?

Yes, legitimately so. Because the Crayon’s circuit doesn’t roll off the low end before clipping, bass fundamental frequencies survive the overdrive process. EHX provides bass-specific sound clips on the Crayon product page, positioning it as a genuine bass overdrive option. The Bass boost knob can be used to compensate for any perceived thinning at higher gain settings. At moderate Gain with a bass boost, the Crayon sits comfortably in a live bass mix without losing note definition or low-end weight.

How does the Crayon work as a boost into another overdrive?

Very effectively. With Gain set low and VOL above unity, the Crayon provides a full-frequency clean push to whatever pedal follows it in the chain. Unlike using a Tube Screamer as a boost (which adds its own mid-hump character to the pushed signal), the Crayon adds volume and harmonic content without imposing a frequency bias. The receiving pedal sees a hotter, fuller input and saturates more aggressively, expressing its own character rather than the Crayon’s. This makes the Crayon a more neutral platform for driving other drives than most TS-type pedals, which always add their own coloring to the push.

Who uses the Electro-Harmonix Crayon professionally?

Evan Stephens Hall of indie rock band Pinegrove is the most verified professional Crayon user — documented via live performance photo at the Gothic Theatre in Denver on October 14, 2017 (Equipboard photo confirmation). Michel PT (singer/guitarist) is the second documented Equipboard entry, though no independent primary source has confirmed this connection. The Crayon does not have a major celebrity endorsement history. Its actual user base spans indie rock, alternative, blues, and experimental players who value tonal flexibility over brand identity — consistent with the pedal’s fundamental design philosophy.

What’s the difference between the Crayon and the Crayon 69?

The “69” designation in Crayon 69 refers to the enclosure format — the number corresponds to the enclosure width in millimeters. The circuit in both is identical. EHX has also produced a “Crayon 76” variant in a wider enclosure. All versions deliver the same full-range overdrive circuit, the same Bass and Treble independent controls, and the same Gain and Volume knobs. The choice between enclosures is a pedalboard fit question rather than a sonic one. The nano-enclosure version (standard Crayon) is the most compact and lowest-cost option.

Tags: bass overdrive, Crayon, Crayon 69, EHX, EHX 2015, Electro-Harmonix, Evan Stephens Hall, full-range overdrive, indie rock gear, overdrive, pedalboard, Pinegrove