BBD Analog Chorus

SUGOI DIMENSION

Wide, dimensional stereo —without the wobble.

The world’s first plugin to model a real analog bucket-brigade (BBD) chorus circuit in the digital domain — capturing the soft saturation, fine grain, and four-pole filtering of the original hardware. It widens any source with genuine three-dimensional movement while the center stays rock-solid: no seasick pitch wobble, no smearing. Four one-button modes, mono to stereo in a click.

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AU · VST3 · AAX · Standalone macOS + Windows
SugoiDimension — analog BBD dimension chorus plugin interface

The BBD legacy

Built on a legendary circuit.

The bucket-brigade device (BBD) was born at Philips Research Labs in 1969 — a chip that hands an audio signal from one tiny capacitor to the next, like a line of hands passing buckets of water. Every hand-off loses a little charge, and that gentle imperfection is exactly what gives the circuit its warm, dimensional character.

Panasonic’s MN-series chips — the MN3005, MN3007 and MN3009 — became the most sought-after of them all: the heart and soul behind the analog choruses, flangers and dimension units that defined the late ’70s and ’80s.

SugoiDimension models an MN3007-class BBD line stage by stage — so you get that circuit’s real analog character, with no 40-year-old silicon to hunt down.

Panasonic MN3007 bucket-brigade delay (BBD) chips

Panasonic MN3007 — the bucket-brigade chip we modeled

MN3007 application circuit — the bucket-brigade delay line used in classic analog echo and chorus units

MN3007 application circuit — the delay line at the heart of classic analog echo & chorus

Four modes. One button each.

No parameters to learn. Pick a mode and the track has stereo dimension. Fine-tune later in the Advanced panel if you want.

SugoiDimension DIMENSION MODE selector with four one-button modes
1

Subtle

A little width and air. Safe to leave on almost anything.

2

Classic

The sound most people mean by “that chorus.” The go-to.

3

Wide

A lush stereo spread for pads, keys, and layered sounds.

4

Maximum

The widest, most dramatic movement, when the space is the point.

Turn mono into wide stereo.

Feed it a mono synth, a DI guitar, or a single-mic vocal and set the Input mode: MONO fans that signal into a wide stereo image while the center stays solid. STEREO keeps your existing image and adds movement. M-S processes only the sides, so a centered lead stays clear and up front.

SugoiDimension INPUT mode switch — MONO / STEREO / M-S — beside the Dimension Mode buttons

How it works

Width, without the wobble.

An ordinary chorus modulates pitch — you hear it moving, and the whole signal wobbles. SugoiDimension works differently. It runs paired bucket-brigade (BBD) delay lines that move in opposition, so the center of your sound stays fixed while only the stereo edges shift.

The result is width and gentle 3D movement with no audible pitch wobble, no smearing, and a mono-fold that stays clean.

AN ORDINARY CHORUS PITCH pitch moves — you hear it wobble SUGOIDIMENSION PITCH L R STEREO WIDTH width moves — center & pitch stay put

Real analog character.

The movement comes from a modeled MN3007-class bucket-brigade delay line — the same kind of circuit analog dimension units were built on. Charge passed stage to stage adds a soft saturation and a fine grain; four-pole filters shape the top end the way the hardware did. Push Width from 0 to 200%, warm it with Color, and blend to taste with Mix.

MN3007 bucket-brigade delay IC

The circuit we modeled

A modeled MN3007-class bucket-brigade delay — the same delay IC classic analog dimension units were built on.

SugoiDimension Advanced controls — LFO Shape, Color, Speed, Depth, Lo Cut, Hi Cut, Width and Mix

BBD Saturation

Charge moving stage to stage adds a soft, musical saturation and a fine analog grain.

Pre / Post Filtering

Four-pole filters around the delay line shape the top end the way the analog hardware did.

Width & Color

Push Width from 0 to 200%, warm the tone with Color, and blend with Mix.

A/B Demo

Hear it.

Play any source and switch it in. The width sits at the edges; the center doesn't move.

SugoiDimension plugin UI
Bypass
Now Playing Synth Pad
0:00 / 0:00

Everything in one plugin.

Width, movement, and analog tone — on one clean panel.

4 Dimension Modes

Subtle, Classic, Wide, Maximum — one button each, from a touch of air to full stereo drama.

MN3007 BBD Engine

Modeled bucket-brigade delay lines for real analog saturation, grain, and dimensional movement.

Mono / Stereo / M-S Input

Fan a mono source into wide stereo, widen an existing image, or process only the sides.

Width 0–200% + Depth

Dial the stereo spread from centered to fully wide, and set how far the movement travels.

Full Tone Shaping

Mix, Speed, Color, Lo/Hi Cut, and Output — with an Advanced panel when you want to go deeper.

AU · VST3 · AAX · Standalone

macOS Universal (Apple Silicon + Intel) and Windows. Runs in every major DAW, including Pro Tools.

System Requirements

macOS

  • macOS 13 (Ventura) or later
  • Apple Silicon (M1/M2/M3/M4) & Intel supported
  • AU, VST3, AAX & Standalone
  • 64-bit only
  • ~50 MB disk space
  • 4 GB RAM minimum

Windows

  • Windows 10 or later
  • 64-bit (x86_64)
  • VST3 & AAX
  • ~50 MB disk space
  • 4 GB RAM minimum

Questions? Answers.

Everything you need to know about SugoiDimension.

How is a dimension chorus different from a normal chorus? +

A normal chorus modulates pitch, so you hear the whole signal wobble. SugoiDimension runs paired bucket-brigade delay lines that move in opposition. The center of your sound stays fixed while only the stereo edges shift, so you get width and 3D movement with no audible pitch wobble.

Does SugoiDimension add latency? +

No. SugoiDimension adds no reporting latency and is safe for live tracking and real-time mixing.

Can it turn a mono source into wide stereo? +

Yes. Set the Input mode to MONO and SugoiDimension fans a mono source into a wide stereo image while the center stays solid. Use STEREO to keep your existing image and add movement, or M-S to process only the sides and leave a centered lead clear.

How do the four modes differ? +

Each mode is one button. 1 · Subtle adds a little width and air. 2 · Classic is the standard chorus most people mean. 3 · Wide gives a lush stereo spread for pads and keys. 4 · Maximum is the widest, most dramatic movement. Fine-tune any mode in the Advanced panel if you want.

Does it work in Pro Tools? +

Yes. SugoiDimension ships as AAX, so it runs in Pro Tools on both macOS and Windows, alongside AU, VST3, and Standalone.

Is there a free trial? +

Yes — the free trial runs a full 30 days with no feature limits and no credit card required, so you can hear it on your own tracks before buying.

What formats and operating systems are supported? +

SugoiDimension runs as AU, VST3, AAX, and Standalone. macOS 13 Ventura or later (Universal, Apple Silicon and Intel) and Windows 10 or later (64-bit).

Get SugoiDimension.

$19.99 $14.99
Limited-time offer

One-time purchase, no subscription, free updates.

  • ✓ Analog BBD dimension chorus
  • ✓ 4 one-button dimension modes
  • ✓ Mono / Stereo / M-S input
  • ✓ Width 0–200% + Depth
  • ✓ Mix, Speed, Color, Lo/Hi Cut, Output
  • ✓ Advanced panel for deeper control
  • ✓ AU + VST3 + AAX + Standalone
  • ✓ macOS Universal + Windows
  • ✓ Free lifetime updates
  • ✓ 30-day free trial
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