AKG PZM11 LL Professional Flush Mount Boundary Layer Microphone

The PZM11 LL is a compact boundary layer microphone designed to sit flush against surfaces, making it ideal for conference tables, podiums, and other applications where discretion and minimal visibility matter. Its low-profile construction and direct screw-terminal connectivity eliminate the need for bulky connectors, while intelligent frequency shaping reduces HVAC rumble without sacrificing clarity in the vocal and speech ranges.

Design & Build

Measuring just 115 mm long by 70 mm wide and 29 mm tall, this microphone integrates seamlessly into any mounting surface with its off-white finish and compact form factor. At only 71 grams, it places minimal stress on mounting hardware while the rear-plate electronics and screw terminals provide direct integration into standard audio installations.

Audio Performance

The PZM11 LL delivers a 68 dB-A signal-to-noise ratio with a 26 dB-A equivalent noise floor, ensuring clean capture even in moderately ambient environments. Its 80–20,000 Hz frequency response includes a low-end rolloff to suppress HVAC and environmental noise, paired with a subtle high-frequency boost that enhances speech intelligibility and presence.

Key Features

Flush-mount boundary layer design for minimal visibility
Frequency response: 80–20,000 Hz
Sensitivity: 5 mV/Pa
Signal-to-noise ratio: 68 dB-A
Equivalent noise level: 26 dB-A
Powered by 12–48V phantom power
Screw-terminal rear-plate electronics; no external connectors required
Low-frequency rolloff reduces HVAC and environmental rumble
Subtle high-frequency boost for enhanced clarity
Compact dimensions: 115 × 70 × 29 mm
Lightweight at 71 grams
Off-white finish
Mic-level output

The PZM11 LL excels in professional installations where surface-mounted audio capture must remain unobtrusive while delivering consistent, speech-optimized performance.