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Behringer KOBOL Expander Synth

Capture the 70’s



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SKU: 0718-ABY86-UK1

Product Description

The Kobol Expander from Behringer is a 2 voice fully analogue synthesizer. What makes this synth unique is the VCO waveforms can morph between all wave shapes found in the 2 analogue oscillators. Inspired by the sound of the 70’s, notable uses of similar synths from this period are, Vince Clarke, Vangelis, Jean-Michel Jarre, Depeche Mode, Peter Gabriel and Hans Zimmer.

Whilst being monophonic, The Kobol Expander does contain the ability to Poly Chain up to 16 Voices, you could get 3 of these to create your own 3 voice analogue synth, however you could also use other Poly Chain compatible devices to create your own unique analogue poly synth.

Key Features:

  • 32 CV Patch Points:
    The Kobol Expander has 32 patch points ready to go, incorporate your Eurorack instruments and CV capable equipment. CV allows you to expand and even combine units together, for example the Behringer Neutron can be expanded with the Kobol Expander. The unit is also in a Eurorack friendly form factor along with a lot of Behringer’s other equipment.
  • Sweepable waveshapes:
    The waveshapes can be swept (morphed) between the different waves. A lot of other synths allow you to select different waveshapes via a selection. The Kobol Expander allows you to morph between them, giving you the ability to have total freedom and fall upon new waveforms, total sonic freedom.
  • External Audio processing:
    The Audio input allows you to route audio through the units circuity. Allowing you to add the Kobol’s analogue saturation to beef up another synth, or even add some dirt and grit to a drum beat.


  • Polyphony: Monophonic
  • Oscillators:
    - 2 VCO’s
    - Waves: Triangle, Shark/Triangle, Sawtooth, Sawtooth/Square, Square, Pulse, Variable Pulse.
    - Hard Sync: VCO 2 syncable to VCO 1
  • Low-Pass Filter:
    - 24dB VCF, with cutoff and resonance control
  • Envelopes:
    - 2x Attack, Decay + Sustain (ADS)
    - Assignable to Amp and Filter controls
  • Low Frequency Oscillator:
    - Waves: Triangle, Square
    - Destinations: VCO Mod (hard wired), assignable via patch points.
  • Connections:
    - Output: 1x 1/4" TS Jack (Rear Panel) 3.5mm TS Jack (Front Panel)
    - Headphones: 1x 3.5mm TRS Jack
    - MIDI: IN + THRU 5 pin DIN, USB Type-B (Assignable via pin controls on rear of unit)
    - Expression Pedal: Volume + LP Filter TS 1/4" Jack
    - CV: 31 patch points
    - Power: DC power Socket
  • Power: DC (tba)
  • Dimensions:
    - Length: 548mm / 23”
    - Width: 191mm / 7.5”
    - Height: 129mm / 5.1”
    - Weight: 1.7kg / 3.7lbs

Written by Robin Tindill

CV Compatible
Maximum Polyphony
Sound Engine
70's Reproduction

Customer Reviews


17 reviews





Trusted Customer15th Mar 2024

I purchased this synth as it is quite a different sound format to a lot of others and, being Behringer, cheap enough to take a punt on. I have several of the synths in the Behringer euro rack sized boxes and this must be One of the nicest to use, worth having shorter cables for the patch points below the knobs though or they get in the way! The only thing I feel this synth is missing is an attenuator when patching but is is compatible with several other synths -the Mavis is the one I've used - so this can be sorted. The most important thing is that the Kobol sounds good, quite often distinctive to these ears so it has joined my small group of favourite synths.

Value 5Looks 4Durability 4Sound 5

Trusted Customer10th Mar 2024

Value 5Looks 5Durability 4Sound 4

Mr Tobie Burrows6th Mar 2024

What a fantastic synth for under 200 of your hard earned pounds. Behringer have put a smile on my face with this rare timeless classic refit.

Value 5Looks 5Durability 5Sound 5

Trusted Customer3rd Mar 2024

An adaptable and luscious synth with a range of connection options s

Value 5Looks 5Durability 5Sound 4

Dr Mattie Gorman19th Feb 2024

Value 5

Mr David Woods15th Feb 2024

Value 5Looks 5Durability 5Sound 5

Mr Andrew Abson10th Feb 2024

Lovely sounding oscillators and filter. Control voltage patch points give endless possibilities of controlling nearly every aspect of the synth

Value 5Looks 5Durability 4Sound 5

Trusted Customer10th Nov 2023

Ein wirklich sehr interessanter Synthi.

Value 5Looks 5Durability 5Sound 5

Mr Jay Allison14th Nov 2023

Value 5Looks 5Durability 5Sound 5

Trusted Customer10th Nov 2023

Value 5Looks 5Durability 5Sound 5

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