Soundown Trade & Conference Schedule


September 12 - 15

Newport International Boat Show

Newport, Rhode Island, Tent B34

October 1 - 3

IBEX – The International Boatbuilders Exhibition & Conference, Booth 3-1609

Tampa, Florida

October 30 - November 3

Fort Lauderdale International Boat Show, Super Yacht Pavilion 662

Fort Lauderdale, Florida

November 19 - 21

METS – Marine Equipment Trade Show, booth 12.209

Amsterdam, The Netherlands

December 4-6

International Workboat Show, Booth 3043

New Orleans, Louisiana

November 19- 21

Power-Gen International, Booth 2018

Las Vegas, Nevada


February 13 - 17

Miami International Boat Show, Booth E400

Miami, Florida

“The Science of Soundproofing” from Lyman Morse’s February Dispatches

Posted on: June 26th, 2020 by Sam Smullin

Read about the importance of noise control to a Lyman-Morse, a world class yacht builder in Thomaston, ME. This article discussed how noise control plays a role in refits as well as new builds, with specific discussion of treatments used aboard the Hood 57.

Quiet Down, from Southern Boating

Posted on: June 18th, 2020 by Sam Smullin

Powerboats are not expected to be completely quiet, but there’s a big difference between the confident rumble of a diesel inboard engine and an annoying buzz or vibration that gradually gets worse.

The first step to finding a solution to irritating boat noises is to determine the cause. That’s where a company focused on vibration and acoustic noise control can help, such as the team at Soundown based in Salem, Massachusetts.

Read the rest of this article from Southern Boating.


Posted on: March 25th, 2020 by Sam Smullin



Soundown will remain open during the recently announced statewide Covid-19 related closures.  Our company is required to remain open and active during under Defense Industrial Supply Base, Defense Priority guidelines, and to supply our medical sector customers.

Employee safety is our highest concern and we have various Covid-19 risk reduction policies in place in our factory to protect our workforce.  While we are required to remain open and active during this period, we may do so in reduced or limited capacity as we adjust our work activity and manpower to adapt this dynamic and evolving situation.  We will do our best to be available to our customers at our offices, through e-mail, and cell phone. 

If you do not get a response to an inquiry, need to discuss an order, or wish to speak to a representative of the company we can be reached at the following;

Chris Murray, Sales Manager                 

Mobile: 617.803.3328 cmurray@soundown.com

Sam Smullin, Quality Manager

Mobile: 954.560.7085 sams@soundown.com

Robert Bova, Export Sales                       

Mobile: 978.578. 6521 rbova@soundown.com

Matt Devitt, National Sales                      

Mobile: 617.797.2816 devitt@soundown.com

Steve Moyer, Florida Sales                     

Mobile: 954.868.0968 smoyer@soundown.com

Leanne Wheeler, Customer Service        


Should there be a need to pick up material at either location, we will accommodate a curbside/loading dock pick up with advance credit card purchase.  Please alert us or call one of the above numbers upon arrival.

The individuals on the list above will be available 8-5 Monday through Friday during the extent of this emergency situation.  Anyone on this contact list will be able to field your call and assist or reach others within the company as necessary.     



Joseph I. Smullin


Soundown Launches New Website

Posted on: September 27th, 2018 by admin

Hundreds of man hours went into revamping the Soundown website, with the goal of creating an easy-to-use interface that is also thorough, informative, and updated.

New features include more product information, and information that’s specific to applications like industrial, architectural, medical, or marine projects. There’s also a new section for boat owners that tackles advice for marine applications by vessel type. For your particular vessel type, it’s the next best thing to getting a personal consultation with advice specific to your needs.

The site features in-depth product specs and a lot more photos, and in this news section there’s a handy list of upcoming trade and boat shows where you can catch experts from Soundown and talk to them in person.

Soundown Acquires Evolution Marine

Posted on: January 29th, 2017 by admin

The Soundown Corporation of Salem, Massachusetts, the worldwide leader in noise and vibration control engineering, has acquired The Evolution Company of Rockland, Maine. Evolution is best known for their Evolution Shaft Systems, a set of components for marine vessels. These oil bath shaft systems encase propeller shafts in an oil-lubricated enclosure, which improves efficiency and reduces the whining sound often produced by high torque.

Soundown has worked with Evolution for decades, often recommending their shaft systems to customers whose vessels are suffering from grinding or whining sound pollution produced by their shaft systems. “Evolution makes a really solid solution. Over the years, they’ve become our go-to choice for reducing noise pollution in the shaft system,” says audio engineer Sam Smullin of Soundown. “Since it’s our mission to reduce noise as much as possible, whenever possible, it made sense for us to form a closer relationship with Evolution.”

The acquisition will enable Soundown to share the latest developments in manufacturing techniques and audio engineering knowledge, and combine them with Evolution’s proven hardware and long-standing reputation for quality and attention to detail.

“We’re very excited about the possibilities, going forward, to create seamless integration and the ideal solutions for our customers,” says Smullin. “This is an exciting evolution for both of our companies.” Evolution will continue to produce the products it’s known for, including the EMSS (Evolution Marine Shaft System), the Shaft Razor rope cutter, the Evolution Flexible Shaft Coupling, and more.