Sennheiser MEG 14-40-L B

Sennheiser MEG 14-40-L B Cardioid Gooseneck Microphone (Matte Black)

The Sennheiser MEG 14-40-L B (Article Number: 504792) is a premium, professional 40 cm (15.75 inches) condenser gooseneck microphone engineered for permanent installations and high-end speech applications. Designed for lecture halls, corporate boardrooms, video conferencing suites, and legislative chambers, this microphone delivers outstanding speech intelligibility.

The "-L" designation highlights its integrated red LED light ring positioned directly below the capsule to provide immediate visual indication of microphone status. The final "B" suffix references its sleek, reflection-free matte black finish.

Key Acoustic and Engineering Attributes

• Premium Sennheiser KE 10 Capsule: Built around the high-fidelity KE 10 pre-polarized condenser capsule. It ensures smooth, uniform frequency tracking (50 Hz to 20,000 Hz) to reproduce accurate vocal weight and natural articulation.

• Feedback-Defying Cardioid Polar Pattern: Features a tight cardioid pick-up response with a uniform 120-degree acceptance angle. It focuses tightly on the presenter while rejecting off-axis room reflections and ambient background clutter.

• Advanced RF Shielding Matrix: Integrated with proprietary shielding tech that guards the audio stream against radio frequency interference (RFI) and intermodulation caused by smartphones, Wi-Fi routers, and nearby wireless production gear.

• Specialized XLR 5-Pin Architecture: Unlike standard microphones, the base features an XLR 5-Pin Male connector. This design splits the architecture, using pins 1-3 for the balanced audio stream and phantom power, while pins 4-5 route dedicated external DC power to control the red LED ring.

Technical Specifications Matrix

In the Box: Component Inventory

• 1 x MEG 14-40-L B Gooseneck Microphone (Black with Red Light Ring)

• 1 x Quick Start Reference Guide

Integration and Hardware Pinout Wiring Advice

Pin Assignment for the XLR 5-Pin Base: To properly integrate the microphone signal and the active status indicator, note the standard factory pinout matrix:

• Pin 1: Ground / Audio Shield

• Pin 2: Audio Positive (+)

• Pin 3: Audio Negative (-)

• Pin 4: LED Power Input (9–30V DC, any polarity)

• Pin 5: LED Power Input (9–30V DC, any polarity)

Ecosystem Base Compatibility Warning: Because this microphone relies on a 5-pin layout to drive the LED status ring, it cannot be plugged directly into a standard 3-pin XLR wall plate or table stand. To deploy it cleanly on a conference desk, pair it with automated logic tablestands like the Sennheiser MAT 153-S B or the networked SpeechLine SL Tablestand 153-S DW. These bases handle the complex signal routing and logic control necessary to light up the ring whenever the mic becomes active.