Piaa Twin-Tone Bass Horn 85115 Black — 112 dB, 330/400Hz Compact High-Output Vehicle Horn

Piaa 85115 Superior twin-tone bass horn is a compact, high-output vehicle horn pairing 330Hz and 400Hz tones for a clear, attention-getting alert at up to 112 dB.

When visibility alone isn't enough, your horn is the last line of communication. The Piaa 85115 delivers two distinct frequencies so your signal cuts through traffic noise and ambient sound. It’s lightweight, designed for easy installation on most cars, trucks, and SUVs, and built to produce a powerful call without drawing excessive current from the vehicle electrical system.

How loud is this horn and what do the decibel and frequency numbers mean?

The Piaa 85115 produces up to 112 decibels of sound pressure, measured under standard test conditions, which is within the range expected for aftermarket automotive horns. The twin-tone design uses 330Hz and 400Hz so the sound contains both low and mid frequencies, making it easier for others to notice and localize the source.

• 112 dB peak output for strong, attention-getting sound
• 330Hz lower tone plus 400Hz higher tone for contrast
• Two horns operate together to create a fuller, more directional signal

Will this horn draw too much current or need special wiring?

Each horn draws approximately 2.7 amps under normal operation, a moderate load that most vehicle horn circuits or a relay can handle. Installation typically requires standard 12V automotive wiring practices—secure grounds, fused power, and optional relay use for longevity and safety.

• About 2.7 A current draw per horn
• Compatible with standard 12V horn wiring and relays
• Simple wiring steps: fused power, solid ground, and switched activation

How easy is installation and what mounting options are available?

The Piaa 85115 is engineered to be lightweight and straightforward to mount on most vehicles. It includes mounting points suitable for common bracket locations, and the compact profile makes it practical to fit behind grilles or on radiator supports without major modifications.

• Compact, low-profile housings fit many factory mounting spots
• Standard bolt hole spacing for common brackets and mounts
• Works well in hidden or visible positions depending on preference

What materials and build quality can I expect from this horn?

Piaa constructs the 85115 with durable components meant for automotive environments, balancing weight and resilience. The finish and housing protect internal elements from road debris and short-term moisture exposure; routine checks during maintenance keep performance consistent.

• Robust housing designed for automotive use
• Corrosion-resistant contacts and mounting hardware
• Designed for long life with periodic inspection and secure mounting

Who is this horn for? The Piaa 85115 Superior twin-tone horn is aimed at drivers who want a compact, powerful audible signal that cuts through traffic noise without requiring complex installation. It suits everyday commuters, light-truck and SUV owners, and anyone replacing a weak factory horn who wants clearer dual-frequency sound. Installers and DIY enthusiasts will appreciate the moderate current draw and standard hanging points, while safety-focused drivers get a louder, more noticeable alert for road situations where visibility is limited.