Samson SACM11B CM11B Omnidirectional Boundary Conference Microphone

The Samson CM11B is a boundary-layer condenser microphone engineered for one job: capturing speech clearly across a conference surface. Its half-omnidirectional pickup pattern reads the full 180-degree hemisphere above the table, meaning participants seated around a boardroom don't need to lean in or pass a mic. Because the condenser element sits flush against the mounting surface, the CM11B avoids the phase cancellation artifacts that plague conventional mics placed on tables — you get a more coherent, natural-sounding capture with less coloration from surface reflections. The fixed internal hi-pass filter quietly rolls off the low-end rumble that conference rooms are notorious for: HVAC drone, table taps, and footsteps transmitting through the floor.

Build-wise, the CM11B is a simple, unobtrusive black disc at just 3.35 inches across and under an inch tall — it virtually disappears on a dark conference table. The wired connection via mini XLR keeps the signal path clean, though you'll want to have adapter cables on hand since most mixers and DSP units expect standard XLR. At 6.8 ounces, it's easy to deploy multiples across a large table or relocate between rooms. It demands phantom power from whatever preamp or mixer it's connected to, so confirm your signal chain can deliver that before specifying it into an install. For small-to-medium conference rooms running straightforward voice reinforcement or recording, the CM11B handles the fundamentals at a budget-friendly price point.