Docta Philter: The Octave + Envelope Filter Pedal for Funk, Fusion, and Beyond

A Funk Machine in a Box

The Docta Philter is a handmade analogue pedal that combines two classic effects — a warm octave-down and a funky envelope filter — in one compact unit. Built for both bassists and guitarists, it delivers everything from deep synth-like bass lines to snappy auto-wah riffs.

It’s inspired by the legendary Boss OC-2 for the octave section and Mutron/Mini Q-Tron filters for the envelope section — but with modern upgrades to make it cleaner, tighter, and more versatile.

Key Features

Octave & Envelope Filter in One – No need for two separate pedals.
Low-Pass Filter Control – Shape the octave tone from smooth and deep to bright and punchy.
Dry Signal Kill Switch – For pure octave effects without any clean blend.
True Bypass – Your tone stays pure when the pedal is off.
Handmade Analogue Circuitry – Boutique build quality with vintage-inspired sound.

Why Bassists Love It

Traditional octave pedals can struggle with low-end definition, and many envelope filters boost the volume unexpectedly. The Docta Philter keeps your low end intact while letting you sculpt your sound in real time — perfect for slap funk, synth bass, and fusion grooves.

With the dry signal kill switch engaged, you can get pure, monophonic synth tones that sit perfectly in electronic or neo-soul mixes. Add the envelope filter on top, and you get a moving, vowel-like sweep that reacts to your playing dynamics.

Creative Uses

Funk Bass: Nail Bootsy-style thump with octave-down + quacky filter.
Synth Leads: Kill the dry signal, max the filter, and play monophonic lines for a vintage synth vibe.
Guitar Auto-Wah: Use the envelope section on its own for expressive funk rhythm parts.
Filter-Swept Octaves: Blend the two sections for evolving textures in ambient or fusion music.

Tech Specs

Effect Type: Octave-Down + Envelope Filter combo
Octave Circuit: Inspired by Boss OC-2, with improved tracking
Filter Circuit: Inspired by Mutron/Mini Q-Tron
Controls: Octave Level, Filter Sensitivity, Low-Pass Filter knob, Dry Kill switch
Bypass: True bypass
Power: 9V DC, centre negative
Origin: Handmade in Turkey

📄 Pro Tip: Try combining the low-pass filter with the dry kill switch for fat, synth-like bass — especially with fingerstyle or muted plucking.

Where to Get Yours

The Docta Philter is available directly from Celebrity Pedals and our official Reverb store.
Price: $490 — worldwide shipping available. https://reverb.com/item/84412661-docta-philter-octave-and-envelope-filter

FAQ

Q: Can I use the octave and envelope filter separately?
A: Yes — you can engage either effect alone or combine them.

Q: Will it work with active bass pickups?
A: Absolutely. It’s voiced to keep clarity and low-end definition even with high-output instruments.

Q: What styles suit the Docta Philter best?
A: Funk, fusion, synth bass, neo-soul, and any genre that benefits from dynamic filter sweeps.

Millie Wah-Bie Brown: The Wah Pedal with a Funky Twist

From Smooth Soul to Screaming Funk

The Millie Wah-Bie Brown is a handmade, boutique auto-wah pedal designed for bass and guitar. It delivers classic wah sweeps without the need for a treadle, reacting dynamically to your playing style. Whether you’re laying down mellow R&B grooves or hitting fast funk lines, it keeps your tone sharp, expressive, and consistent.

Its circuit is inspired by the warm, vocal-like sweeps of vintage wahs but tuned to keep bass frequencies full and punchy — a rare trait in the auto-wah world.

Key Features

Dynamic Auto-Wah – Wah sweeps triggered by your playing attack.
Wide Frequency Response – Works equally well for bass and guitar.
Sensitivity Control – Dial in how the wah reacts to your playing.
Compact Design – Pedalboard-friendly size.
True Bypass – Keeps your tone clean when switched off.
Handmade in the Turkey – Boutique build quality.

Why Bassists & Guitarists Love It

With most auto-wahs, you either lose low-end on bass or get overly sharp peaks on guitar. The Millie Wah-Bie Brown balances both — delivering a smooth, vocal sweep that tracks cleanly, even with fast note runs.

On bass, it preserves that thick low-end foundation. On guitar, it cuts through a mix without harshness. Its sensitivity knob lets you control exactly when and how the wah kicks in, making it perfect for both subtle and extreme effects.

Creative Uses

Bass Funk Grooves: Add rhythmic wah sweeps that sync perfectly with slap or fingerstyle.
Soul Guitar Rhythms: Keep a steady auto-wah pulse for chord comping.
Reggae & Dub: Combine with delay for a hypnotic, pulsing feel.
Neo-Soul Leads: Smooth, vocal-like articulation on single-note lines.

Tech Specs

Effect Type: Auto-Wah
Controls: Sensitivity, Range, LP/BP Switch, Volume, Decay
Bypass: True bypass
Power: 9V DC, centre negative
Origin: Handmade in Turkey

📄 Pro Tip: For bass, set sensitivity lower for deep, smooth sweeps. For guitar, push sensitivity higher for quick wah activation on lead lines.

Where to Get Yours

The Millie Wah-Bie Brown is available now from Celebrity Pedals and our official Reverb store.
Price: $240— worldwide shipping available. https://reverb.com/item/90802047-millie-wah-bie-brown-envelope-filter

FAQ

Q: Is it only for funk?
A: No — it works in soul, R&B, reggae, rock, and even electronic styles.

Q: Can I use it after distortion?
A: Yes — placing it after drive pedals gives a more pronounced wah sweep.

Q: Does it work with active basses?
A: Absolutely. It’s voiced to handle both active and passive pickups.

Chorustopher Wah-Ken: Boutique Chorus with Cinematic Depth

Lush Modulation and Funk for Bass & Guitar

The Chorustopher Wah-Ken is a boutique, hand-built chorus and envelope filter pedal designed to add rich, 3D modulation to your tone. Whether you want shimmering, subtle movement or deep, warbly textures, it delivers with studio-quality clarity.

Handmade in the UK, it’s voiced to work equally well with guitar and bass, ensuring you never lose low-end definition while still getting sparkling highs.

Key Features

Analog-Style Chorus – Warm, lush modulation with a natural feel.
Rate & Depth Controls – Shape your chorus from subtle shimmer to swirling waves.
Full-Frequency Response – Perfect for both bass and guitar.
Envelope based on the Mutron and Mini Q-Tron. Range, Sensitivity and Low Pass/Band Pass Switch.
Compact Build – Fits easily on any pedalboard.
True Bypass – Zero tone loss when disengaged.
Handmade in Turkey – Boutique components and craftsmanship.

Why Musicians Love It

Many chorus pedals sound thin on bass or overly bright on guitar. The Chorustopher Wah-Ken strikes the perfect balance — preserving bass punch while giving guitar a smooth, liquid modulation.

Its versatility makes it just as at home in ‘80s-inspired clean tones as it is in modern ambient soundscapes.

Use each effect individually or combine them via the blend knob.

Creative Uses

Bass Chords: Add shimmer and spread to harmonic playing.
Clean Guitar Leads: Give single-note lines depth and movement.
Ambient Pads: Pair with reverb for dreamy soundscapes.
Post-Punk & New Wave: Nail the classic modulated clean tone.

Tech Specs

Effect Type: Chorus and Envelope Filter
Controls: Rate, Depth, Blend, Sensitivity, Range, LP and BP Switch
Bypass: True bypass
Power: 9V DC, centre negative
Origin: Handmade in Turkey

📄 Pro Tip: On bass, keep Depth moderate for clarity. On guitar, push Depth high for rich modulation.

With the Envelope Filter, try sweeping each control knob while playing an open string to dial in the perfect tone.

Where to Get Yours

The Chorustopher Wah-Ken is available now from Celebrity Pedals and our official Reverb store.
Price: $280 — ships worldwide. https://reverb.com/item/83224271-chorustopher-wah-ken-chorus-envelope-filter

FAQ

Q: Is it analog or digital?
A: It’s designed with an analog circuit for warm, musical modulation.

Q: Will it work with synths or keys?
A: Yes — it handles full-range signals beautifully.

Q: Does it add noise?
A: No — it’s quiet enough for live and studio use.

Fuzzbulla: The Monster Fuzz Pedal for Guitar & Bass

A Fuzz That Roars!
The Fuzzbulla is a handmade analogue fuzz pedal that delivers thick, harmonically rich distortion with a touch of vintage snarl. Built for both guitarists and bassists, it covers everything from smooth, singing sustain to aggressive, wall-of-sound grind.

Inspired by the legendary Big Muff and Way Huge Pork & Pickle, the Fuzzbulla combines classic fuzz character with modern tweaks for clarity, punch, and low-end retention — even when you’re pushing it to extremes.

Key Features

Big Muff + Pork & Pickle DNA – Classic fuzz tones with modern clarity.
Versatile EQ – Shape your fuzz from fat and warm to biting and aggressive.
Bass-Friendly Design – Retains low end and definition, even on 5-string basses.
True Bypass – Your tone stays pure when the pedal is off.
Handmade Analogue Circuitry – Boutique build quality with a vintage-meets-modern voice.

Why Musicians Love It

Many fuzz pedals sound incredible on guitar but lose definition and low-end on bass. The Fuzzbulla keeps the rumble intact while delivering saturated, singing fuzz that cuts through any mix.
For guitarists, it nails everything from creamy Gilmour-style leads to ferocious grunge textures. For bassists, it’s equally at home in stoner rock, funk, or synth-style fuzz lines.

Creative Uses

Stoner/Doom Bass: Crank the fuzz and keep the lows for a massive, earth-shaking sound.
Psychedelic Guitar: Use the blend to keep your tone consistent and warm for endless, soaring leads.
Synth-Like Tones: Roll off the tone knob, blend in your bass for the lows, and feed it into an octave pedal.
’90s Alternative Crunch: Classic Big Muff grind with added midrange definition.

Tech Specs

Effect Type: Fuzz
Circuit Inspiration: Big Muff + Way Huge Pork & Pickle
Controls: Fuzz Level, Tone, Fuzz, Blend
Bypass: True bypass
Power: 9V DC, centre negative
Origin: Handmade in Turkey

📄 Pro Tip: On bass, try pairing the Fuzzbulla with the dry kill on the Docta Philter for fat, synth-style tones with a fuzzed-out filter sweep.

Where to Get Yours

The Fuzzbulla is available directly from Celebrity Pedals Instagram and our official Reverb store.
Price: $225 — worldwide shipping available. https://reverb.com/item/90801206-celebrity-pedals-fuzzbulla-fuzz

FAQ

Q: Will it work with active bass pickups?
A: Yes — it’s voiced to handle high-output pickups without losing clarity.

Q: Is it only for heavy music?
A: Not at all. It works for rock, funk, psychedelia, shoegaze, and more.

Q: Does it play nice with other pedals?
A: Absolutely — it stacks beautifully with overdrives, octaves, and filters.

Taylor Shift LP: The Smooth Octave Pedal for Guitar & Bass

Dial in Warmth with Precision
The Taylor Shift LP is a handmade analogue octave pedal tailored for both guitar and bass players. It delivers rich, organic octave-down tones with exceptional clarity and control.

Built upon the classic Boss OC-2 octave circuit—but refined—it offers a smoother, cleaner drop without sacrificing character. Featuring a low-pass filter for tonal finesse and a dry signal control for blend flexibility, this pedal suits everything from vintage warmth to cutting modern sounds.

Key Features

Authentic OC-2 Roots – Classic octave-down circuit with modern clarity and stability
Low-Pass Filter – Shape your octave tone: roll off the highs for a warm, subby bottom end or crank it for bright, mix-cutting texture.
Improved Clean/Dry Signal – Retains your original tone for blend or solo performance.
True Bypass & Handmade Analogue Circuitry – Preserves signal integrity and offers boutique quality.
Dual Instrument Compatibility – Stays tight on thick bass lines and articulate on guitar leads.

Why Players Love It

On forums like Basschat, users highlight how the Taylor Shift delivers classic octave tones with none of the clipping or glitch issues found in older OC-2s—especially with active or hot-passive basses. One bassist shared:

“It’s super smooth, doesn’t glitch much, and tracks low on my basses…The dry signal boost is so good I sometimes use it as a clean boost when I don’t need the octaver.”Basschat

Creative Uses

Deep Bass Sub-Octaves: Dial in a low-pass filter for those rumbling sub layers that sit perfectly under a mix.
Ambient Guitar Tones: Use octave drop plus filter to craft lush, atmospheric textures.
Mix-Friendly Rhythm: Engage clean blend for clarity, then switch to full octave for standout riffs.
Stack Magic: Pair with overdrive or fuzz (like the Fuzzbulla) for fat, yet defined octave-saturated tones.

Tech Specs

Effect Type: Octave-down
Circuit Inspiration: Boss OC-2 with added filter knb and cleaner dry signal path.
Controls: Low-Pass Filter knob, Dry Signal volume, Octave Volume.
Bypass: True bypass
Power: 9 V DC, centre negative
Origin: Handmade in the UK/Turkey (Celebrity Pedals)

📄 Pro Tip: Engage the low-pass filter at around 12 o’clock for the classic octave character; dial back to really “destroy the PA” if you're chasing that modern vibe.

Where to Get Yours

Available now on Reverb and via Celebrity Pedals Instagram. $265 https://reverb.com/uk/item/73199797-taylor-shift-octave-low-pass-filter

FAQ

Q: Is it good for active basses?
A: Yes — users report great clean tracking and no clipping, even with active pickups.Basschat

Q: Does it offer a clean blend?
A: Yes — the improved dry signal lets you blend in your dry tone.

Q: How does it compare to other OC-2-style pedals?
A: Fans love the more stable tracking, cleaner signal, and ergonomic form factor—especially on bass.

Elvis Compressley: The Studio-Grade Compressor for Guitar & Bass

Smooth, Controlled, and Full of Character
The Elvis Compressley is a handmade analogue compressor that blends the best of two modern classics — the Keeley Compressor and the Origin Effects Cali76 — into one versatile, pedalboard-friendly box.

Designed for both guitarists and bassists, it delivers studio-quality compression with the warmth and musicality of boutique analogue circuitry. From subtle dynamic smoothing to bold, squashy sustain, the Elvis Compressley adapts to any style while preserving your instrument’s natural tone.

Key Features

Keeley + Cali76 DNA – Inspired by two of the most loved boutique compressors ever made.
Five-Knob Control – Level, Sustain, Blend, Attack, and Tone for deep tonal shaping.
Parallel Compression – Blend control lets you mix compressed and dry signals for punch and clarity.
Tone Control – Shape the high-end response for added sparkle or darker, vintage vibes.
True Bypass – Maintains your tone when switched off.
Handmade Analogue Circuitry – Boutique build quality and dependable performance.

Why Players Love It

Many compressors either sound transparent but sterile, or musical but too coloured. The Elvis Compressley strikes a balance — giving you studio-grade control and a lively, organic feel.

Guitarists can use it to add sustain to solos, enhance clean funk rhythms, or smooth out fingerpicking dynamics. Bassists can tighten low-end transients while keeping all the depth and punch.

Creative Uses

Nashville-Style Clean Guitar: Add sparkle and sustain without losing pick attack.
Funk Chops: Fast attack, medium sustain, and a touch of tone boost for extra snap.
Punchy Bass Grooves: Use the Blend knob to keep low-end power intact while controlling peaks.
Ambient Pads: Long sustain and smooth attack for dreamy swells and textures.

Tech Specs

Effect Type: Compressor
Circuit Inspiration: Keeley Compressor + Origin Effects Cali76
Controls: Level, Sustain, Blend, Attack, Tone
Bypass: True bypass
Power: 9 V DC, centre negative
Origin: Handmade in Turkey

📄 Pro Tip: For a transparent “always-on” setting, keep Blend at 60%, Sustain low, and use Tone to fine-tune brightness for your instrument.

Where to Get Yours

The Elvis Compressley is available directly from Celebrity Pedals Instagram and our official Reverb store. https://reverb.com/uk/item/85954635-elvis-compressley-compressor-pedal
Price: $250 — worldwide shipping available.

FAQ

Q: Will it work well with active bass pickups?
A: Absolutely — the Blend control keeps your original signal’s punch intact.

Q: Is it noisy at high sustain settings?
A: The Elvis Compressley is designed for low-noise operation but if you dial in a long sustain with noisy pickups you will amplify that noise. Best to tame noise before going into a compressor if you like to use the sustain knob.