The Grommes Precision SLS-HW is a high-wattage surge protection solution designed to help protect audio equipment and speaker systems from lightning-induced electrical surges. Engineered for commercial and professional audio installations, the SLS-HW helps reduce damage caused by transient voltages traveling through long speaker lines.

Compact, easy to install, and built for continuous protection, the SLS-HW automatically clamps dangerous voltage spikes and resets once the surge condition passes. 

Protect Audio Systems from Lightning-Induced Surges

Lightning can damage equipment even without a direct strike:

• Helps protect against induced lightning surges
• Reduces transient voltage damage on speaker lines
• Designed for long-distance speaker wire installations
• Ideal for commercial and distributed audio systems

Automatic Surge Clamping Protection

The SLS-HW reacts instantly to dangerous voltage spikes:

• Clamps excessive transient voltages
• Simulates a short circuit during surge conditions
• Automatically resets after voltage levels return to normal
• Provides continuous reusable protection

Flexible Installation Options

Simple integration into new or existing systems:

• Install after amplifier equipment for amplifier protection
• Install before speakers for speaker protection
• Compact design for easy mounting
• Suitable for retrofit and new installations

Ideal for Commercial Audio Systems

Perfect for systems using long speaker cable runs:

• 70V distributed audio systems
• Commercial paging systems
• Outdoor speaker systems
• School and campus audio systems
• Church and stadium installations
• Industrial PA systems

American-Made Reliability

Built with decades of audio protection expertise:

• Made in the USA
• Backed by over 50 years of Grommes Precision experience
• Includes 5-year warranty
• 30-day money-back guarantee

Key Features

• Speaker line lightning suppressor
• Protects against lightning-induced surges
• High-wattage audio system compatibility
• Automatic voltage clamping
• Self-resetting protection design
• Compact installation footprint
• Commercial audio protection solution
• Made in America

Why Speaker Line Lightning Protection Matters

The Grommes Precision SLS-HW is especially valuable in installations with long outdoor or campus-wide speaker cable runs where lightning-induced voltage surges are more common. Even indirect lightning strikes can send damaging electrical spikes through speaker wiring and destroy connected amplifiers or speakers.

Installing surge protection directly on speaker lines helps reduce costly downtime and equipment replacement in commercial audio systems.