The Ahuja GM-615M unidirectional electret condenser gooseneck microphone is engineered for seamless integration into commercial public address (PA) systems, audio mixing consoles, speech reinforcement setups, and professional presentation environments. Featuring a standard built-in XLR socket output and an operating power requirement of 1.5V to 9V DC, the microphone connects reliably with standard balanced pro-audio infrastructure.
Audio Mixer and Preamp Interface Compatibility
The Ahuja GM-615M is equipped with an integrated 3-pin XLR connector base, facilitating direct compatibility with standard professional balanced XLR microphone inputs on PA mixer amplifiers, commercial matrix mixers, digital signal processors (DSPs), and dedicated microphone preamplifiers. With an output impedance rating of 1,000 ohms (1 kΩ) and a nominal sensitivity of 5.0 mV/Pa, the unit matches the line and preamplification stages of industrial audio mixers across a full 50 Hz to 18,000 Hz frequency response range.
For audio system designers and integration engineers, the 1 kΩ load impedance interfaces smoothly with standard PA amplifier mic channels, preventing signal loading and ensuring clean speech transmission across corporate, educational, and institutional sound installations.
Power Supply and DC Operating Compatibility
As an electret condenser capsule, the Ahuja GM-615M requires an active DC supply voltage operating within the 1.5V to 9V DC range. System compatibility for powering includes:
- External DC Power Supplies: Compatible with inline microphone power modules or supply circuits rated between 1.5V and 9V DC.
- DC Battery Supplies: Compatible with external battery compartments or battery-powered desktop microphone bases operating within 1.5V to 9V DC (they are not included).
- Mixer Preamp Power: Compatible with mixer channels supporting appropriate DC bias networks or step-down adapters providing 1.5V to 9V DC operational power.
Mechanical Mounting, Base, and Furniture Integration
With an overall length of 585 mm (23 inches) and a flexible, slender gooseneck construction, the GM-615M provides substantial reach while maintaining an unobtrusive profile. The integrated male XLR connection at the base allows the unit to mate directly with industry-standard female XLR receptacles, including:
- Lectern and Podium XLR Flanges: Mounts directly onto surface-mount or flush-mount XLR sockets installed on speaker podiums, pulpits, and presentation stages.
- Desktop Microphone Bases: Inserts into standard weighted desktop microphone stands or conference mic bases equipped with 3-pin XLR female jacks.
- Open Conference Tables and Panel Setups: Integrates into boardroom tables and panel discussion consoles using standard XLR panel sockets.
Acoustic Environment and PA Reinforcement Compatibility
The GM-615M utilizes a unidirectional pickup pattern with high front-to-back rejection. This directional characteristic provides superior acoustic isolation in multi-speaker public address environments, effectively suppressing ambient reverberation and preventing acoustic feedback loops. It is fully compatible for deployment in speech auditoriums, house-of-worship lecterns, council chambers, and open conference halls where high gain before feedback is required.
Compatibility Reference Table
| System Parameter | Microphone Specification | Compatible Host Equipment / Interface |
|---|---|---|
| Audio Connection | Built-in 3-Pin Male XLR | Standard balanced 3-pin female XLR inputs, mixers, amplifiers, and desktop bases |
| Operating Power | 1.5V to 9V DC | Compatible 1.5V–9V DC external supplies or battery-powered base units (they are not included) |
| Nominal Impedance | 1,000 Ω (1 kΩ) | Standard PA mixer-amplifier microphone inputs and commercial preamplifiers |
| Sensitivity | 5.0 mV/Pa | Standard professional mic preamps with 50 Hz – 18,000 Hz processing |
| Mechanical Reach | 585 mm (23") overall length | Lecterns, podiums, conference tables, and auditorium presentation stands |
