When out boating, wakeboarding mainly, one frustrating part is the tower speakers and how loud they are when you stop to pick up a fallen boarder. For example; you have the tower speakers super loud… then the rider falls and you circle back to pick them up… when this is going on the speakers are still booming loud and you have to constantly turn them up, down, up, down, up, down. You get the idea. 
Well HSE (HSE Trident) has solved the problem by making a boat volume controller. The controller lets you set a “high” and “low” volume and then adjusts according to the boat speed. This one may sound a bit trivial… like why do you need that… can’t you just turn down the stereo with your hand? I guess we could have asked that question with cars when electric windows or cruise control came out… but they sure as hell are handy.
Read on for more details, specs, and video of this, my new best friend, boating gadget.
HSE proudly presents the First and only patent pending automatic audio control device for your boat stereo system. The Revolution Volume Control integrates seamlessly into existing or new audio systems and performs the tedious task of changing the volume of your music from a high level while under way to a low listening level during slow speed maneuvering or at rest.
The Revolution Volume Control is installed between the stereo head unit and equalizer or amplifiers.
Stereo operation does not change when the Revolution Volume Control is off and when energized (ON) heightens your boating experience by letting you navigate, tow a rider or just relax as the music volume changes relative to the boat speed.
The operation of the HSE Revolution Volume Control combines a cutting edge microprocessor control system with the highest quality audio components.
The RPM signal monitoring circuitry is designed in a way that is independent of the number of cylinders associated with your boat engine.
Once installation is complete, the HSE Revolution Volume Control is simply programmed to operate at the desired engine RPM which is associated with the boat speed and can be changed at any time for any given condition.
Hopefully I haven’t spoken too soon… the HSE Revolution is installed on the boat… will be testing it on the lake this Friday and Sunday… I will update you then on how it “actually works”….
No news to report yet as the unit appears to be hooked up wrong. Every time we tried to set the RPM’s on the HSE we got the error light. Will try again on the next trip. 🙁