Denali SoundBomb™ Mini Electromagnetic Low Tone Horn 113dB Motorcycle Horn

Product Information

The Denali Soundbomb horn was made for Twisted Throttle as a replacement for the Stebel Nautilus Compact. Without getting into too much detail, we were told that TT needed to find a replacement for the Nautilus, for several reasons. The Soundbomb horn has a hefty 20 Amp draw. It measures about 138 mm wide, 116 mm tall and it’s about 88 mm deep. It also comes with a relay, but as always, we used a pre-made horn relay wiring harness (review). Sound Output

The first failed due to our fault — some melting damage due to our mounting experiments, while the second failed after the third short beep, just like the other Nautilus horns we have tried over the years. The hardest part of dealing with the Nautilus or Soundbomb is mounting it on the motorcycle. These are big horns and most motorcycles have very limited spaces underneath the fairing or around the engine for mounting such a monster.One main difference is that the compressor on the Soundbomb is attached with a clamp with two bolts. On the Nautilus, the horn or trumpet section appears to be glued to the compressor. The two of us spent quite a bit of time trying to find a good location to mount the Soundbomb horn on the BMW F 800 S. We tried to mount the horn behind the fairing and also in front of the exhaust pipes, on the side of the engine and even towards the rear, but nothing worked. The mounting problem is even more complicated because there’s just a single bolt location on the horn body that can be used for mounting. This is a cast metal cutout that fits the 8 mm hex head bolt that comes with the kit. The Soundbomb horn used in this review is the single unit version. There’s also a version with a separate compressor canister that can be remotely mounted. So we cut a longer (18 cm) length of aluminum, drilled the two holes as noted below and re-installed the horn, this time in the correct orientation.

Producing a massive 113 decibels of sound, the SoundBomb can be over twice as loud as a standard motorcycle horn! Securely attach the SoundBomb Mini to the chosen location on your motorcycle. Ensure that it is positioned in a way that maximizes sound projection while avoiding any interference with other components and potential direct spray from road spray.Twisted Throttle also sells a wiring harness for it and various length/configuration coated steel attachment parts. I acquired all the kit I needed from TT, and the install went smoothly. Twisted Throttle said the horn was designed to be more reliable than the Stebel version, while still providing a loud air horn sound.