AKG CBL201B - Professional Dual-Element Low-Profile Boundary Zone Microphone

AKG CBL201B - Low-profile, dual-element boundary layer microphone for meeting rooms

The AKG CBL201B is a dual-element cardioid boundary microphone designed for professional installations in conference rooms, education, and huddle spaces . Its dual-capsule architecture in a 180° configuration optimizes pickup of two speakers facing each other on either side of the microphone, reducing the need for multiple micing points on the table. The low-profile design (28.4 mm height) and RGB LED ring with tactile talk/mute control deliver a discreet and clear user experience, while screw-type terminals simplify wiring and integration with AV processors and automation systems. With a 50 Hz–15 kHz response , 120 dB maximum SPL , balanced outputs per channel , and RF suppression , the CBL201B delivers speech intelligibility, stability, and ease of use in demanding environments.

Main features

• Dual 180° cardioid element to cover opposing speakers with a single capture point.
• Low profile minimizes visual impact and table reflections: 28.4 mm high; 128.5 mm wide.
• RGB LED ring with touch control to talk/mute and internal or external control modes.
• Screw-type connection for audio and logic I/O; balanced outputs for each element (2 channels).
• Frequency response of 50 Hz to 15 kHz optimized for voice; max SPL 120 dB .
• Phantom power per channel: Supports 24–48 V , with 48 V recommended on each element.
• RF interference suppression to avoid artifacts from mobile phones and laptops.
• 5m cable included and mounting kit (threaded rod, hardware and gaskets) for clean installation.

Product benefits

• Fewer microphones on the desk : 180° dual pickup reduces the number of microphone points while maintaining intelligibility.
• Intuitive operation for the participant thanks to the touch ring and clear LED signals (active/muted).
• Agile integration with DSP/automation via logical I/O (external mute, LED color control) and balanced outputs .
• Professional installation with screw-on terminals and accessories included; reduced assembly time.
• Clean audio in corporate environments thanks to its RF suppression and voice-specific performance.

Use cases

• Meeting tables and boardrooms with participants facing each other.
• Classrooms and training rooms with collaboration and videoconferencing solutions.
• Multipurpose rooms with integration to DSP (BSS, Soundcraft, etc.) and control systems.

Frequently Asked Questions

How many audio channels does it deliver? Two balanced outputs (one for each element). Requires phantom power on each channel .

How is mute/talk controlled? By default, it's via the touch ring . It can also be controlled from external systems via the mute logic input/output and LED color inputs .

What power does it need? Phantom 24–48 V (48 V recommended) per channel; typical power consumption per channel is around 0.5 mA .

Description for projects

AKG CBL201B dual-element cardioid 180° boundary zone microphone; response 50–15,000 Hz ; max. SPL 120 dB ; balanced outputs (2 × channel); impedance < 200 Ω ; 24–48 V phantom power (48 V per element recommended); typical consumption 0.5 mA per channel; logic I/O (open collector I/O mute and LED color control, reference 3.3 V); RGB LED ring with touch control; black finish ; profile 28.4 mm (H) × 128.5 mm (W); 5 m cable ; includes threaded stem, screws and gaskets.