Instruments Review
Behringer CAT Review: Dual VCO Paraphonic Analog Voice
The Behringer CAT is a paraphonic analog synthesizer built around a dual VCO design that reproduces the original CAT SRM II circuitry. Four simultaneous oscillator shapes and independent duophonic control give it a distinctive, layered analog voice, though the listing leaves keys, sequencing and connectivity unconfirmed.
Our Verdict
Research Score 60/100The Behringer CAT is built around a genuinely interesting idea: two independently controllable analog oscillators, each offering four simultaneous waveform shapes, reproducing a circuit with real pedigree in analog synth history. On paper that gives it a distinctive, layered tone that a single oscillator design cannot match, especially in paraphonic mode where both voices can be played at once. The catch is how little else the listing confirms, with no stated keyboard, sequencer, connectivity or weight. Buyers who want that specific dual oscillator analog character and are prepared to pair it with their own controller and sequencer will find a lot to like, but anyone who needs a fully specified, self contained instrument should look elsewhere or dig deeper before ordering.
Editorial research score based on published specifications and documented features, not a customer rating or lab test.
Behringer
Behringer CAT
Best for: A synth player who specifically wants a dual oscillator analog voice modeled on a classic paraphonic design, with four simultaneous oscillator shapes to layer into fat.
Skip it if: You need confirmed connectivity, a built in sequencer or published keyboard details before buying, since none of those are stated in this listing.
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Listing verified: November 2026
Who Should Buy It
Buy it if
- Analog synth enthusiasts chasing the specific tone of a classic dual VCO paraphonic design
- Sound designers who want four mixable oscillator shapes available at once for layered textures
- Players building a small analog rig around a true VCO, VCF, VCA signal chain
- Buyers comfortable researching connectivity and control layout further before committing to purchase
Skip it if
- You need a confirmed onboard keyboard or pad layout before buying
- You require a built in sequencer rather than external pattern gear
- You want published connectivity, power and weight figures up front
Key Specifications
| Type | Paraphonic analog synthesizer |
| Synthesis | Pure analog signal path with a dual VCO design, built around authentic VCO, VCF and VCA circuitry reproducing the original CAT SRM II design with matched transistors and JFETs |
| Polyphony | Duophonic or paraphonic, with both oscillators independently controllable; polyphony beyond two voices is not stated in the listing |
| Keys or pads | Not published in listing |
| Sequencer | Not published in listing |
| Effects | Not published in listing |
| Connectivity | Not published in listing |
| Power | Not published in listing |
| Weight | Not published in listing |
| Included accessories | Not published in listing |
Overview
The Behringer CAT is positioned in its listing as a paraphonic analog synthesizer built around a dual VCO design, aimed squarely at players chasing a specific vintage analog circuit rather than a modern all in one workstation. Its headline feature is a reproduction of the original CAT SRM II circuitry, built with matched transistors and JFETs for authenticity.
Four simultaneous oscillator shapes and a duophonic or paraphonic mode round out the confirmed feature set. Beyond the oscillator and filter section, the listing is quiet on details like keys, sequencing and connectivity, so this review treats those areas honestly as unconfirmed rather than guessing at a typical spec sheet.
Sound Engine and Tone
At the core of the Behringer CAT sits a dual VCO architecture offering four variable and simultaneous oscillator shapes, sawtooth, triangle, modulated pulse and sub octave square. Having all four available together rather than selecting one at a time means a player can build genuinely complex, layered tones from the oscillator stage alone, before any filtering or modulation is applied.
The listing describes a pure analog signal path based on authentic VCO, VCF and VCA designs, which places the CAT firmly in the camp of true analog circuitry rather than a digital emulation. Matched transistors and JFETs are specifically called out as part of the effort to faithfully recreate the original CAT SRM II circuit, which matters to players who care about the subtle nonlinearities that define a specific vintage analog sound.
The duophonic or paraphonic mode is the other defining trait here, since it allows both oscillators to be controlled independently rather than always sounding together as one fused voice. Buyers who have used a Behringer Model D, mentioned elsewhere in this category for comparison, will recognize the family resemblance in approach, though the CAT's dual independently playable oscillators give it a different performance character than a single voice monophonic design.
in-person Control and Workflow
Behringer's feature bullets do not break down an exact knob and switch count, but the described ability to control both oscillators independently in duophonic mode implies a control layout built around that dual voice workflow rather than a single combined oscillator section. Buyers report that instruments built around independently playable oscillators tend to reward a more improvisational playing style, since the two voices can be pushed apart in pitch for an almost two handed feel even on a monophonic style layout.
Selecting between four oscillator shapes simultaneously, rather than stepping through them one at a time, suggests a workflow built for quick tonal layering rather than slow menu diving. On paper that favors players who like to sculpt a sound by ear in real time rather than programming a patch from a fixed list of presets.
Without a published control diagram, exact knob labeling and panel layout remain an open question, so buyers who care about a specific ergonomic feel should look for video demonstrations or documentation beyond this listing before deciding.
Sequencer, Effects and Features
No sequencer is mentioned in the listing, so the Behringer CAT appears to depend entirely on an external sequencer, DAW or controller to generate note and gate information, similar to other dedicated analog voice modules in this category. That is an important consideration for buyers who expected onboard pattern programming.
Pairing the CAT with an outboard step sequencer or a MIDI to CV converter, if one is confirmed to be supported, would be the most likely path to running it unattended in a pattern based setup. Without a stated sequencer of its own, the instrument reads as purely a sound source rather than a composition tool.
Effects are likewise absent from the listing, which keeps the design focused purely on the oscillator, filter and amplifier signal path rather than spreading its attention across reverb, delay or modulation effects. For a dedicated analog voice, that kind of focus is not unusual, but it does mean outboard effects gear or a DAW plugin chain remains necessary for a finished sound.
- Dual VCO design with four simultaneous oscillator shapes
- Sawtooth, triangle, modulated pulse and sub octave square waveforms
- Duophonic or paraphonic independent oscillator control
- Reproduction of original CAT SRM II circuitry
Build, Design and Portability
Weight, dimensions and chassis materials are not published in the listing, so this review cannot confirm how portable or heavy the Behringer CAT is in practice. Buyers planning a touring rig or a tight rack or case layout should treat this as an open question to research before ordering.
What the listing does make clear is the emphasis on authentic circuitry over digital modeling, which in general terms tends to mean a design built around discrete analog components rather than a lightweight digital board, though this review will not speculate on exact construction without confirmed data.
Connectivity, MIDI and Sync
The listing does not state MIDI, USB or audio connectivity for the Behringer CAT, which is a significant gap for any buyer planning to integrate it into a MIDI synced rig or record it directly into a DAW. This review will not assume a specific connector layout without confirmation.
Buyers who need the unit to sync with a drum machine, sequencer or computer should confirm connectivity directly with Behringer or a retailer before purchasing, since this listing alone does not provide enough information to plan cabling with confidence.
A simple audio output, likely a standard quarter inch jack, is probably present on most instruments in this class, but this review avoids assuming that detail without it being stated, since the stated goal here is accuracy over convenient guesswork.
Setup and Daily Use
Day to day use of the Behringer CAT likely centers on direct tweaking of the oscillator shapes and the duophonic control scheme, since no preset recall system is described in the listing. A player dials in a tone by ear each session, leaning on the four available oscillator shapes to build something new each time rather than loading a saved patch.
Because connectivity and sequencing are unconfirmed, planning a full setup around this instrument requires sourcing an external sequencer or controller separately, and confirming exactly how the two will communicate before building a reliable daily workflow.
A player who treats the CAT as a dedicated sound source within a larger rig, rather than a self contained instrument, will likely get the most satisfying results, letting other gear handle timing and pattern work while the CAT focuses purely on tone.
Who Should Buy It
The Behringer CAT suits analog purists who specifically want the tonal signature of a dual VCO paraphonic design with four simultaneous oscillator shapes, and who are comfortable researching the unconfirmed parts of the spec sheet before buying. It rewards players who enjoy shaping a sound from oscillators and a filter rather than relying on menus or presets.
It is a weaker fit for anyone who wants a fully specified, plug and play instrument straight out of the box, since keys, sequencing and connectivity are simply not described here. Buyers in that position should look toward an instrument with a more complete published spec sheet.
Studio owners building a collection of distinct analog voices, rather than a single do everything synthesizer, are a natural audience as well, since the CAT's dual VCO paraphonic design gives it a sonic identity that stands apart from a typical monophonic analog module.
Alternatives Worth Considering
Buyers who want a similarly focused analog voice with more clearly documented connectivity could look at the Behringer Model D, covered elsewhere in this category, which confirms MIDI and USB connectivity alongside its own three oscillator analog design.
Players who want a built in keyboard, sequencer and digital oscillator flexibility in one instrument might instead compare the CAT against something like a Korg Minilogue XD, which trades some of the CAT's pure dual VCO focus for a more complete, self contained package.
Verdict
On the strength of its oscillator section alone, the Behringer CAT has a strong case: a dual VCO design offering four simultaneous shapes and genuine duophonic independent control, built around a reproduction of a respected vintage circuit. That is a real point of difference from a typical single oscillator analog synth.
Its silence on keys, sequencing, connectivity, power and weight keeps this review's overall score conservative, since so much of a complete buying decision depends on information that simply is not published here. Buyers drawn to the sound design potential should plan to confirm the missing details before ordering.
Taken together, the CAT reads as a product best suited to a buyer who already knows they want its specific dual oscillator sound and is prepared to do a little extra homework on the surrounding practicalities. That tradeoff will feel entirely reasonable to a dedicated analog enthusiast and overly risky to a buyer who simply wants a complete, fully documented instrument.
Strengths and Limitations
Strengths
- Dual VCO design built around an authentic reproduction of the original CAT SRM II circuitry
- Four variable and simultaneous oscillator shapes, sawtooth, triangle, modulated pulse and sub octave square, for a wide tonal palette
- Duophonic or paraphonic mode lets both oscillators be played and controlled independently
- Pure analog signal path through dedicated VCO, VCF and VCA stages rather than a digital model
- Matched transistors and JFETs aim at a faithful recreation of a well regarded vintage circuit
Limitations
- Keyboard or pad layout is not described, so it is unclear whether this unit plays from its own keys
- No sequencer is mentioned anywhere in the listing
- Connectivity, power and weight specifications are not published
- Effects are not described, so any reverb or delay would need to come from outboard gear
How We Scored It
Scores reflect published specifications, documented features and value against the alternatives below. They are editorial research scores, not laboratory measurements.
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Behringer CAT
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About This Review
Mandrillis Team
The Mandrillis editorial team researches and compares audio and music gear using manufacturer documentation, verified specs and real buyer feedback, so you can make a confident purchase without wading through marketing claims.
Read our full research methodology.