Klark Teknik 3rd Dimension BBD-320

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Analogue Multi-Dimensional Signal Processor

With BBD technology
Legendary Analogue Spatial Sound Processor
Authentic reproduction of the original analogue circuitry
Sound effects based on authentic BBD (Bucket Brigade Delay) technology
Switchable bypass
Frequency response: 20 - 20,000 Hz, +0/-3 dB
Inputs: 2x XLR, 2x 6.3 mm jack balanced
Outputs: 2x XLR, 2x 6.3 mm jack balanced
Remote: 6.3 mm mono jack
Switchable stereo/mono mode
Power consumption: 10 W
Dimensions (H x W x D): 88 x 483 x 158 mm
Construction: 19" / 2 U
Weight: 2.5 kg

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3-Year Thomann Warranty

Available since June 2020

Item number 482379

Sales Unit 1 piece(s)

19" Rack Unit Yes

Saveable Effects No

MIDI-capable No

Footswitch connection Yes

Microphone Input No

19" Rack Compatible 1

Number of Input Channels 2

€179

All prices incl. VAT

Sales Rank

in Multi Effect Processors

Information on the disposal of old devices

A legendary 80s chorus

The Klark Teknik 3rd Dimension BBD-320 is a fully analogue, multi-dimensional signal processor that recreates the classic chorus effect popularised in the 1980s. The "BBD" (Bucket Brigade Delay) technology was a defining element of that era's guitar, bass, and synthesizer tones, with artists such as Brian Eno, Stevie Ray Vaughan, and Peter Gabriel making it a staple of their sound. The BBD-320 faithfully reproduces these iconic chorus textures and brings them into modern productions, whether for nostalgic recreations or bold new sound design. With an ultra-simple interface featuring just four buttons, the BBD-320 makes it easy to dial in the perfect chorus effect. For live performers, the unit also includes an optional footswitch input, allowing for hands-free control on stage.

Simple intensity control

Unlike many chorus units, the BBD-320 does away with conventional speed, tone, and depth knobs in favour of a streamlined button-based interface. Each button selects a preset intensity level, ranging from a subtle modulation to a pronounced, swirling effect. Pressing multiple buttons simultaneously allows for stacked chorus variations, expanding the range of available textures. A bypass mode preserves the dry signal when needed, and the rear panel offers a mono or stereo switch, giving users the flexibility to tailor the effect to their setup. The balanced XLR and 1/4" jack inputs and outputs ensure an excellent signal in both studio and live sound systems. This quick-access control layout also makes it easy to recall settings in live environments.

Chorus for stage and studio

Ideal for both studio production and live performance, the Klark Teknic BBD-320 delivers professional-grade modulation with minimal noise. The unit maintains an excellent output level across the 20Hz to 20kHz frequency range, providing a wide tonal spectrum with low distortion (<0.1% at 1kHz) and a noise floor as low as -79dBu with the chorus engaged. Studio users will appreciate its ability to add depth and movement to guitars, vocals, and synths, while live performers can modify their sound in real-time, switching chorus modes via a TS footswitch connected via 6.35mm mono jack. The relay-controlled bypass circuit switches automatically when the chorus is disengaged, keeping the signal clean and uninterrupted at all times and making the BBD-320 a reliable choice, both in the studio and on stage.

About Klark Teknik

Founded in 1974 by brothers Terence and Phillip Clarke, Klark Teknik designs and manufactures professional audio equipment used primarily in the events industry. Based in Kidderminster, Worcestershire, UK, the company has developed a number of innovative products in the audio field (including the DN60 Real Time Analyzer and the DN300 Graphic Equalizer) and it won one of the Queen's Awards for Enterprise in 1986. Today, the firm (along with Midas) is owned by the Music Group, to which Behringer also belongs.

Built for professional racks

Designed for effortless integration, the BBD-320 is a 19" 2U rack-mountable unit, secured with optional mounting screws. A ten-segment LED meter provides precise output level monitoring, preventing clipping and distortion. With an input impedance of 30kΩ (balanced) and 15kΩ (unbalanced) and a low 50Ω output impedance, it delivers a consistent, high-headroom signal. Its relay-controlled bypass is particularly useful in rack-based studio setups, allowing engineers to maintain an uninterrupted signal flow when the effect is not in use. Whether enhancing vintage-inspired studio mixes or elevating live performances, the Klark Teknik 3rd Dimension BBD-320 remains a simple, effective, and affordable way to introduce lush chorus textures into any setup.

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99 Customer ratings

5 67 Customers 4 22 Customers 3 6 Customers 2 4 Customers 1 0 Customers

4.5 / 5

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68 Reviews

Excellent Chorus Which Adds Instant Width To Your Sound

bonzoboy 05.08.2020

Mainly using this unit for synths - and it handles the hotter input excellently. The effect is very subtle on all settings, but there is an instant stereo width added to the sound the moment you depress one of the buttons. It's also possible to depress multiple buttons at the same time, which gives you even more variations in sound - although they are all still rather subtle, whatever the combination. Highly recommended.

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This is the best thing you can do to your DX7

Bjørnar 06.04.2022

This unit is the best thing that can happen to your Yamaha DX7. It adds a warmth and width like nothing else I've tried. It's a perfect match for DX7/DX7II. I use it all the time. It's also great for a lot of other synths, as well as adding a nice subtle width to vocals.

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Unbeatable for the price!!

DavC 21.10.2021

OK, the original Roland Dimension D might sound a bit more subtile and lush, but this KT version is absolutely incredible for its price!! I'm glad I bought one.

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Great unit for mixing

SantiagoCalleja 12.07.2023

I love my Dimension BBD 320. I use it for mixing as a send effect and give some instruments a bit of character, depth and width. I would love for it to have a volume control at the output, but I don't really have issues with it as I set its gain in my console or in the box directly. Highly recommended for its price!

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Klark Teknik 3rd Dimension BBD-320

Analogue Multi-Dimensional Signal Processor