Public Address Systems for the Military and Defence

Military environments subject audio equipment to extremes: temperature swings from -30°C to +60°C, salt fog, blowing sand, vibration from heavy vehicles, and the need for instant deployment. A standard commercial PA system will fail. SSOUNDS designs every component — from transducers to DSP — to meet or exceed MIL-STD-810G for shock, vibration, and environmental resistance.

Intelligibility is paramount. In a base-wide alert or parade ground command, every syllable must cut through engine noise, wind, and ambient chaos. SSOUNDS achieves this through proprietary horn geometries that concentrate acoustic energy into long-throw patterns, combined with advanced DSP that applies frequency-dependent delay and equalization to preserve consonant clarity at distance.

Parade grounds, airfields, and training ranges require coverage over hundreds of meters with minimal drop-off. SSOUNDS long-throw horn arrays use multiple high-efficiency compression drivers coupled to constant-directivity horns, delivering 140 dB SPL peak at 1 meter with pattern control down to 400 Hz. The horns are rotatable for horizontal or vertical deployment, allowing coverage of long, narrow zones or wide areas.

For fixed installations, SSOUNDS horn arrays can be stacked or flown in clusters, with each horn individually aimed using precision mounting brackets. The system's DSP includes pre-loaded coverage templates for common military geometries — linear, fan, and circular — reducing setup time and ensuring consistent SPL across the entire zone.

SSOUNDS outdoor-rated loudspeakers carry IP66 certification — fully protected against dust ingress and powerful water jets from any direction. Enclosures are constructed from marine-grade aluminum or UV-stabilized polypropylene with stainless steel hardware, corrosion-resistant grilles, and neoprene gaskets. All connectors are Neutrik® XX series with IP65-rated covers.

For coastal or humid environments, SSOUNDS offers an optional conformal coating on all PCBs and internal wiring, preventing corrosion from salt spray. The systems have been deployed in tropical monsoon climates and desert sandstorms without a single failure.

Mass-notification systems cannot fail. SSOUNDS amplifiers feature dual redundant power supplies with automatic failover, and the DSP can be configured for active-passive redundancy — if the primary amplifier channel fails, the backup instantly takes over with no audible gap. For field use, SSOUNDS offers battery-powered amplifier modules with hot-swappable LiFePO4 batteries providing up to 8 hours of continuous operation at full SPL.

Independent power means the system can operate without grid connection or generator. SSOUNDS' battery racks are built into IP-rated transit cases, with integrated chargers that accept military vehicle power (12V/24V DC) or solar input. The entire system — speakers, amps, batteries — fits into standard military transit cases for rapid deployment by helicopter or truck.

For base-wide alerts, SSOUNDS giant-voice systems combine multiple long-throw horn arrays with subwoofers to produce 150 dB SPL at 100 meters — enough to be heard clearly over aircraft noise, artillery fire, or alarms. The system supports multiple simultaneous audio sources: live microphone, pre-recorded messages, tones, and network audio from a central command center.

SSOUNDS' mass-notification DSP includes automatic priority logic — a live emergency microphone overrides all other inputs, and the system can be triggered by external alarm systems via GPIO or network commands. Message storage is non-volatile and can be updated remotely over encrypted IP links.

SSOUNDS field PA systems are designed for one-person setup in under 10 minutes. The loudspeaker modules are lightweight (under 25 kg each) and stack using integrated interlocking hardware — no tools required. Amplifier and battery modules slide into the base of the stack, creating a self-contained tower that can be erected by a single soldier.

The systems include wireless handheld and headset microphones with encrypted transmission (AES-256) to prevent eavesdropping. For covert operations, SSOUNDS offers a low-profile version with directional speakers that limit sound to a 30-degree cone, minimizing acoustic signature.

SSOUNDS systems are designed to integrate seamlessly with military communication networks. They support analog audio (XLR, terminal blocks), digital audio (AES3, Dante), and IP-based control (SNMP, HTTP API). For legacy systems, SSOUNDS provides interface modules that convert 25V/70V line-level signals to low-impedance drive.

All SSOUNDS DSP units are field-programmable via a ruggedized tablet or laptop, with presets for different deployment scenarios (parade, alert, training, ceremony). The software includes a system health dashboard that monitors amplifier temperature, battery state, and speaker impedance in real time, with alerts sent to command via email or SMS.