Boss Series Premium Train Horns (150 dB+)

Boss Series: The Loudest Train Horns We Build

If you're searching for the loudest train horn in a portable, battery-powered format, the Boss Series is where that search ends. These are our flagship units — hand-built for maximum acoustic output, pushing 150 dB and above. Every Boss Series horn features our longest trumpet design, engineered to produce the deep, resonant tone that defines a real railroad horn. Whether you're managing traffic on a job site, clearing trails, or simply need a safety signaling tool with serious reach, the Boss Series delivers output you can feel as much as hear.

These horns are built on the same impact-driver-style chassis as our full lineup, keeping them portable and familiar in the hand. But the Boss Series is in a different category when it comes to raw volume and tone depth. If 150 dB+ matters to your application, this is the collection to shop.

Who the Boss Series Is Built For

• Work crews and site supervisors who need a reliable, high-volume warning signal
• Outdoor enthusiasts operating in areas where wildlife or traffic awareness is critical
• Anyone who's tried a standard air horn and found it insufficient

What to Consider Before You Buy

• Volume context: 150 dB is roughly equivalent to a jet engine at close range — hearing protection is strongly recommended for the operator
• Battery platform: Check each product listing for compatible battery platforms to confirm fit with what you already own
• Trumpet length: Longer trumpets produce lower, more resonant tones — a defining Boss Series feature
• Use environment: Output and range will vary based on open versus enclosed spaces