There’s something undeniably magical about a BOSS compact pedal. With their iconic colors and rugged, stomp-ready design, these little boxes helped shape your sound. Despite being decades old, original units are still on the boards of working musicians today. Why? Because each one brings its own charm and personality. BOSS compact pedals are timeless tools of expression that keep players coming back, generation after generation.
Now, those same sonic signatures are available as the BOSS Effects Pedals plug-ins—ready to drop into your DAW and take your tracks somewhere new. Whether it’s the punch of an OD-1, the sweep of a TW-1, or the slow bloom of the elusive SG-1, every plug-in captures what made the original special.
So, let’s dig into what draws players to these time-tested circuits—and discover how you can make them part of your own musical story.
OD-1 Over Drive
Appearing in 1977, the OD-1 set benchmarks in guitar tone and popularized the term ‘overdrive’ as a category of effects. Offering warm, natural-sounding drive, it was a standout alternative to the countless fuzz pedals of the era.
The OD-1’s original asymmetric clipping circuit generated that signature sound, rich in even-order harmonics with the familiar response of a pushed tube amp. Featuring a low-impedance input, players could explore shades of warm, touch-sensitive overdrive using the guitar volume control.

Still highly revered, the OD-1 is as relevant and sought after today as ever. Guitarists love its subtle mid bump, which adds presence without harshness. Meanwhile, its tight low-end keeps everything focused and articulate.
Position it in your signal chain as a core drive or use it to goose your amp into harmonic bliss. This timeless classic reminds us that, sometimes, the future of your sound starts by plugging into the past.
PH-1 Phaser
Warm and understated yet full of character, the PH-1 Phaser arrived in 1977 as part of the debut ‘traffic light’ trio of compact pedals, along with the OD-1 Over Drive and SP-1 Spectrum.
A genuine four-stage phaser, the PH-1 was notable for its clarity and depth—a legacy that holds strong today. You’ll hear it in the slow-blooming swirl at ultra-low speeds and the rounded low end that brings a natural weight to chords and lead lines.

The PH-1 melds chewy, velvety resonance and luscious fluidity to deliver one of stompbox history’s most significant, yet often overlooked, phaser pedals. Push the Depth and you’re into jet territory—perfect for energizing distortion tones or adding animated movement to arpeggios and rhythmic stabs.
The FET-based circuit introduced a subtle gain pulse, giving the modulation a living, breathing feel. And that’s where the magic happens. The PH-1 doesn’t just sweep—it ebbs and flows, lending color and motion, whatever the style.
SP-1 Spectrum
An elusive legend from 1977, the SP-1 Spectrum is one of the rarest BOSS compacts ever made. Originally derived from the Roland SR-120 amp’s unique tone-shaping circuit, this deceptively simple two-knob tool offered diverse sonic possibilities.
The Spectrum control dials in a frequency band between 500 Hz and 5 kHz, while the Balance knob blends wet and dry signals in a way that feels organic—reshaping your tone rather than merely boosting it.

Ideal for mimicking cocked-wah sounds or giving your tone the nudge it needs to leap out of a mix, the SP-1’s real strength lies in how it revoices your instrument.
Bassists once leaned on it to carve through a performance with authority, but guitarists discovered its finesse in adding color—especially before gain-based effects. This hidden gem is a must-hear, no matter what instrument you’re playing.
DS-1 Distortion
Since its debut in 1978, the DS-1 has been the secret weapon behind countless anthemic riffs and soaring solos. This best-selling BOSS compact delivers biting, full-bodied distortion and smooth sustain, with the kind of attack and definition players find instantly addictive.
Whether you’re pushing heavy rhythms or sculpting a lead tone that sings, its dynamic response and unmistakable edge stay true.

With the twist of a knob, you can dial in anything from mid-gain crunch to aggressive saturation. The distinctive tone circuit lets you shape lows and highs with a surprising degree of control.
Pull back your guitar’s volume, and the DS-1 gracefully backs off, revealing chiming clean tones without getting murky. Punky grit or stadium rock swagger, this is the raw, responsive distortion that gets your ideas moving fast.
CS-1 Compression Sustainer
Serve a fat slice of vintage compression with the first BOSS Compression Sustainer, the CS-1 from 1978. Built around an optical design uncommon in pedals, this photocoupler-based circuit delivered a tasteful ‘squashed’ tone with a fast attack, complementing funk chops and country picking.
Thanks to its low-noise optical design, the CS-1 is ideal for keeping rhythm parts tight, clean, and percussive.

The switchable Treble mode adds a strident shimmer, pushing your tone forward with edge and clarity. At the same time, the Sustain knob opens up a wide range of sounds: gentle transient control, thick rubbery compression, and everything between.
Crank it and you’ll feel that endless bloom on every note. This is compression with warmth, waiting to give your tone a loving squeeze.
TW-1 T Wah
Released in 1978, the TW-1 T Wah delivered the dynamic, touch-responsive filtering that defined a generation of fusion and funk. The analog circuit features a photocoupler (like the CS-1), yielding a slightly slower, more fluid response for a distinctive playing feel.
This unique design naturally smooths off harsh highs, giving a warm, musical tone that flatters guitar, bass, and keys alike. With Up and Down Drive modes on tap, you can flip the direction of the filter sweep to suit your phrasing, crafting subtle swells or dramatic frequency shifts at will.

Whether you’re laying into the strings or backing off for nuance, the TW-1 reacts to your touch with a characterful voice. The Sens control tailors the effect’s sensitivity to your picking strength, while the Peak knob fine-tunes its tonal depth.
Use it for righteous rhythm work or lavish leads—this trusty vintage auto-wah does all the fancy footwork for you.
SG-1 Slow Gear
With its elusive production run and cult-like status, the SG-1 Slow Gear has long been one of the rarest and most sought-after BOSS effects pedals.
Originally made between 1979 and 1982, this unique circuit—derived from 1979’s NF-1 Noise Gate—gives a reverse twist on standard gating by creating a natural volume swell. Think violin-style attack without ever touching your volume knob. Ambient washes or elegant lead work, the SG-1 transforms dynamics and phrasing.

Released in the early years of compact pedal innovation, the SG-1 remains one of the most forward-thinking and inventive BOSS creations. Designed to fade in notes automatically, it delivers everything from classic swell sounds to dreamy, atmospheric textures—all without needing a volume pedal.
With its responsive, slow-attack sound, the SG-1 carved out a distinct niche in the world of guitar effects. One thing it won’t do is fade away—the beloved Slow Gear is here to stay.
SD-1 SUPER OverDrive
Released in 1981 and still in production today, the SD-1 is BOSS’s most enduring overdrive pedal. Built on the tonal foundation of the legendary OD-1, it offers the same warm push and smooth asymmetric clipping, from subtle growl to fierce roar.
The addition of a Tone knob and enhanced low-end response gives it notable flexibility, letting you shape everything from edge-of-breakup sparkle to creamy sustain. This timeless overdrive is great for dialing in bite, warmth, and midrange that sits just right in a band mix.

The beauty of the SD-1 lies in how it responds; dig in and it sings, back off and it breathes. Stack it with other pedals, add presence to a clean rhythm tone, or tighten up a high-gain amp—the adaptable SD-1 delivers feel and focus with a touch of vintage magic.
Guaranteed to help you nail that perfect tone, it’s a pedalboard workhorse with unbridled versatility.

Timeless Tone, Modern Workflow
So, are you ready to plug into a new wave of inspiration? The BOSS Effects Pedals plug-ins breathe new life into these iconic stompboxes, faithfully recreated for DAW owners.
Each model is meticulously crafted from the circuit level up, capturing the same tone and nuance that made the originals so cherished.
Available through Roland Cloud Ultimate Membership, it’s the ultimate way to explore timeless tones in a modern workflow.
But this is just the beginning, and many more BOSS Effects Pedals plug-ins are on the roadmap. The initial lineup comprises these eight celebrated effects, including all three from BOSS’s original 1977 compact pedal launch.
With an expanding lineup of tone tools at your fingertips, you’re free to explore, push boundaries, and leave your own mark on the BOSS legacy.