Analog Synthesizer Behringer CAT 37 Keys Monophonic — 37-key monophonic analog synth

The Behringer CAT 37 Keys Monophonic is a compact analog synthesizer with a 37-key keyboard designed for single-voice lead and bass lines. It delivers classic analog sound generation and hands-on controls for shaping timbre in real time. The instrument focuses on straightforward monophonic synthesis, making it suitable for studio work, live performance and sound design tasks where a single expressive voice is required.

Advantages

The synthesizer offers tactile control over oscillator, filter and envelope parameters, enabling detailed sound sculpting without menu diving. Its 37-key keyboard provides a playable range for melodic lines and bass parts while keeping the unit compact and portable. The monophonic architecture concentrates signal flow for focused, fat analog tones and immediate response to performance gestures.

Suitable for

• Creating monophonic lead and bass lines
• Live performance and onstage tweaking
• Studio sound design and tracking
• Practice and compact mobile setups

Key specifications

• 37-key keyboard, monophonic performance
• Analog sound generation with voltage-controlled oscillator and filter
• Dedicated controls for oscillators, filter cutoff/resonance and envelope
• Real-time hands-on parameter controls for performance
• Compact, portable form factor suitable for desktop or stage use
• Audio output and standard connectivity for integration with mixers and audio interfaces

How to use

Connect the synthesizer to an amplifier, mixer or audio interface using the audio outputs and power it on. Use the keyboard to play single-voice parts while adjusting oscillator tuning, waveform selection and filter cutoff to shape the tone. Employ the envelope controls to define attack, decay and sustain characteristics, and use real-time knobs and switches to modulate sound during performance or recording. Integrate the instrument into your setup through its audio and control connections for synchronization with other gear.

Recommendations

For best results, experiment with filter cutoff and resonance while playing to hear how the monophonic signal responds; record direct to an audio interface for studio use and use a good-quality amplifier or monitor system when performing live to preserve the analog character.