Boundary microphone design
The AKG CS3 BU is a boundary layer (PZM-style) conference microphone designed to sit flush on flat surfaces such as conference tables, podiums, or presentation surfaces. Its low-profile housing keeps the microphone unobtrusive while maintaining consistent audio pickup across the capture zone.
Polar pattern and pickup
The CS3 BU features a cardioid polar pattern optimized for boundary placement, providing clear capture of sound sources within its forward hemisphere while rejecting noise from behind. This makes it effective in conference and boardroom settings where multiple talkers are positioned around a shared surface.
Frequency response and audio quality
The microphone delivers a wide, flat frequency response suited to speech intelligibility in conference and presentation environments. Its boundary placement takes advantage of the pressure-doubling effect at the mounting surface, improving sensitivity and reducing the need for high gain at the mixing console.
Connectivity and phantom power
The CS3 BU connects via a standard XLR output and requires phantom power for operation, making it compatible with most professional mixing consoles, conference processors, and audio interfaces. Its straightforward connection makes integration into existing AV systems simple and reliable.