SOUNDOWN WATERDROP™ SILENCERS Soundown Corp., the marine noise control leader, manufactures and supplies high performance, high quality, wet marine exhaust silencers for pleasure and commercial craft applications. For over three decades we have been inventing, designing and fabricating systems for super silencing of generators and main propulsion engines in power and sailing vessels. Our silencer designs have evolved from the original inventions of our affiliated engineering company J&A Enterprises Inc, by Soundown president Joe Smullin in the early 70’s. The objective of the original design was to provide a solution to the problem of water splash noise disturbance caused by the wet, generator exhaust system discharge. The design has continuously evolved over time to provide greater noise attenuation performance and separation of exhaust gases and cooling water. Today we offer many different configurations of marine exhaust silencer systems for propulsion ranging to 3600 hp and power generation to 300 kw. The proprietary Soundown “Waterdrop” family of silencers offers the greatest silencing at the lowest backpressure in comparison to “off the shelf” silencer systems. The level of quiet provided by the Waterdrop silencer exceeds the acoustic performance of the competition by 10dB for most propulsion exhausts and up to 20dB for generator systems. In this constant evolution process we are driven to develop many innovative designs to meet our customers needs. Products such as the “Sootsinker”, a nuisance pollution control device and cooled stack discharge systems resonate our determination to be the technical leaders in our field.