Overview
The Shure MX418D/C is a Microflex desktop gooseneck condenser microphone designed for speech capture in conference rooms, meeting spaces, lecture areas, and other installed audio environments. It combines an 18-inch gooseneck microphone with a desktop base, providing a ready-to-position microphone arrangement for table-based installations.
The supplied cardioid cartridge focuses pickup toward the speaker, while the desktop base provides programmable switch and LED logic functions for compatible control systems.
Audio Performance and Control
The MX418D/C uses an electret condenser capsule with a specified frequency response of 50 Hz to 17 kHz. Its cardioid polar pattern helps reduce sensitivity to sound arriving from the sides and rear, supporting focused speech pickup when the microphone is positioned correctly.
The desktop base includes a programmable switch and LED indicator. Logic connections allow the microphone's control functions to be integrated with compatible conferencing or room-control systems. The attached 3-metre cable includes a shielded audio pair and separate conductors for logic control.
Installation and Compatibility
This model is designed for desktop placement rather than the separate locking-flange mounting arrangement used by certain MX418 variants. Its attached cable terminates in a professional audio connection and includes logic-control conductors for supported installations.
The microphone requires 11–52 V DC phantom power from compatible audio equipment. Before installation, confirm that the mixer or conferencing system supports the required phantom power and that its control interface is compatible with the microphone's logic connections.
Key Features
- 18-inch gooseneck for positioning the microphone toward the speaker.
- Cardioid condenser capsule for directional speech pickup.
- Desktop base with programmable switch and LED indicator.
- Attached 3-metre cable with audio and logic-control conductors.
- Interchangeable Microflex cartridge design for supported replacement cartridge options.
Applications
The MX418D/C is suitable for conference tables, meeting rooms, boardrooms, courtrooms, lecture spaces, and institutional discussion systems where a desktop microphone with switch and status indication is required.
DC Supplies Product Note
The “D” in MX418D/C identifies the desktop-base configuration. This model differs from MX418/C, which uses an attached XLR preamplifier and mounting hardware rather than the same desktop-base arrangement. Confirm the required mounting style and control integration before ordering.
Specifications
| Specification | Details |
|---|
| Brand | Shure |
| Part Number / MPN | MX418D/C |
| Product Type | Desktop gooseneck condenser microphone |
| Product Family | Microflex |
| Gooseneck Length | 18 inches (457.2 mm) |
| Microphone Type | Condenser, electret bias |
| Polar Pattern | Cardioid |
| Frequency Response | 50 Hz–17 kHz |
| Output Impedance | 150 ohms rated; 180 ohms actual in the applicable Shure datasheet |
| Sensitivity | -33.5 dBV (21.1 mV), per the MX412D/MX418D datasheet |
| Power Requirement | 11–52 V DC phantom power |
| Current Consumption | 2.0 mA, per the MX412D/MX418D datasheet |
| Desktop Base | Included in the D-series configuration |
| Control Functions | Programmable switch and LED indicator |
| Cable Length | 3 metres (10 feet) |
| Cable Conductors | Shielded audio pair and three unshielded logic conductors |
| Maximum SPL | 123 dB, cardioid configuration in the MX400D user guide |
| Signal-to-Noise Ratio | 65 dB, cardioid configuration in the MX400D user guide |
| Dynamic Range | 94 dB, as specified in the MX400D user guide |
| Operating Temperature | -18°C to 57°C |
| Relative Humidity | 0–95% |
Frequently Asked Questions
Does the MX418D/C include a desktop base?
Yes. The D-series model is the desktop-base configuration, with a programmable switch, LED indicator, and attached cable.
Is the microphone cardioid?
Yes. The /C suffix identifies the cardioid cartridge configuration.
Does the microphone require phantom power?
Yes. It requires 11–52 V DC phantom power from compatible audio equipment.
Can the switch and LED be integrated with a conference control system?
The base provides logic-control connections. Confirm the specific control wiring and programming requirements against the Shure documentation and the intended conferencing system.
Is the MX418D/C the same as the MX418/C?
No. The MX418D/C uses a desktop base with control functions and an attached cable, while the MX418/C is a different mounting configuration with an attached XLR preamplifier.
