Sennheiser MEG 14-40-L B
Sennheiser MEG 14-40-L B is backordered and will ship as soon as it is back in stock.
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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
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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.
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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.
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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.
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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
| Feature Parameter | Hardware Specification Profile |
| Model Reference Name | MEG 14-40-L B |
| Official Article Number | 504792 |
| Acoustic Transducer Type | Pre-polarized Electret Condenser (KE 10 Capsule) |
| Pick-up Polar Pattern | Cardioid |
| Audio Frequency Response | 50 Hz to 20,000 Hz |
| Nominal System Impedance | Less than 100 Ohms |
| Maximum Sound Pressure Level (SPL) | 130 dB SPL |
| Equivalent Noise Level | 26 dB (A-weighted) / 37 dB (CCIR-weighted) |
| Microphone Phantom Power Requirements | P12 to P48 V Phantom Power (Draws 3 mA) |
| LED Light Ring Operational Voltage | 9 V to 30 V DC (Draws 18 mA) |
| Status Light Color Indication | Red Glow Ring |
| Base Output Connection Node | XLR 5-Pin Male |
| Gooseneck Structural Length | 450 mm (17.72 inches total length / 400 mm neck) |
| Gooseneck Tube / Head Diameter | Tube: 8 mm (0.31") / Capsule Head: 22.8 mm (0.9") |
| Net Hardware Weight | Approx. 147 grams (5.2 oz) |
In the Box: Component Inventory
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1 x MEG 14-40-L B Gooseneck Microphone (Black with Red Light Ring)
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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:
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Pin 1: Ground / Audio Shield
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Pin 2: Audio Positive (+)
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Pin 3: Audio Negative (-)
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Pin 4: LED Power Input (9–30V DC, any polarity)
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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.
