Klark Teknik 3rd Dimension BBD-320

Klark Teknik 3rd Dimension BBD-320 — Analog BBD Chorus for the Studio and Stage

The Klark Teknik 3rd Dimension BBD-320 is a 2U rackmount analog multi-dimensional signal processor that resurrects the lush, wide chorus character of the original Roland Dimension D. At its core sits an authentic Bucket Brigade Device (BBD) chip driving a pure analog signal path, so every note passes through the same kind of circuitry that defined '80s recordings. The 3rd Dimension BBD-320 is a practical, affordable way to add that classic spatial width to guitars, basses, synths, vocals, and full mixes.

What Sets It Apart in the Chorus Category

Most chorus units bury their controls under menus and sub-parameters, but the BBD-320 strips that away. Four front-panel buttons — labeled 1 through 4 — step the effect from a subtle warble up to an intense, swirling chorus, and pressing two buttons at once stacks the modes for more nuanced, layered textures. A precise 10-segment LED meter sits next to the buttons so output level is always visible at a glance, while a 6.3 mm TS remote jack on the front panel accepts any standard footswitch for hands-free bypass during performance.

Connectivity and Signal Flow — Plug-and-Play Integration

Connectivity is where this unit earns its place in a working rack. The rear panel carries servo-balanced 6.3 mm TRS and gold-plated XLR inputs and outputs, so it drops into a patchbay, mixer insert, or interface loop without adapter cables. A rear-panel slider switches between stereo and mono operation, letting the same unit handle a stereo synth return or a mono guitar insert.

• Inputs: XLR, 6.3 mm TS, 6.3 mm TRS — accepts balanced studio gear and unbalanced instrument-level sources
• Outputs: XLR, 6.3 mm TRS — feeds mixers, audio interfaces, or power amps with a balanced, noise-resistant signal
• Other I/O: 1 x 6.3 mm TS remote footswitch jack — toggles effect on/off from the floor

Build, Bypass, and Reliability — Built for Daily Use

The chassis is a rugged 2 RU metal enclosure designed for the knocks of touring and the constant patching of a busy studio. A relay-controlled hard bypass switch routes the dry signal straight through when the effect is off, and an auto-bypass function kicks in during power loss so the unit never silences a channel unexpectedly. The BBD-320 ships with a 3-year warranty and is designed and engineered in the UK.

• Rackmount Format: 2 RU, 19" wide — fits any standard equipment rack
• True Bypass: Relay-controlled hard bypass with auto-bypass — keeps the dry tone untouched when the effect is off
• MIDI: No MIDI interface — operation is entirely manual or via footswitch, no menu diving required

Who the Klark Teknik 3rd Dimension BBD-320 Is For

The Klark Teknik 3rd Dimension BBD-320 is the right choice for recording engineers, producers, and live players who want the unmistakable Dimension D character without paying vintage prices or hunting the used market. Home-studio owners running a guitar, bass, or vocal chain through a single rack unit will appreciate the four-button simplicity, while mix engineers can patch it across a stereo bus as a parallel send for subtle widening on an entire mix. Anyone who has wanted the Dimension D sound on a hardware budget — and is willing to give up the original's 1U footprint for the savings — will find this unit a practical, road-ready solution.

Klark Teknik — A Heritage of Studio Signal Processing

Klark Teknik has been designing professional signal-processing equipment since the 1970s, with a reputation rooted in the studio and live-sound worlds. The 3rd Dimension BBD-320 continues that lineage by taking one of the most coveted analog chorus circuits ever made — the Roland Dimension D — and rebuilding it around an authentic BBD chip in a modern, roadworthy chassis. The result is a piece of gear that pays tribute to a classic effect while remaining accessible to a new generation of players and engineers.