A.T.A.C. (Advanced Tweeter Array Construction) technology was developed to solve one of the biggest challenges in marine audio: keeping music loud, clear and evenly distributed in a wide-open environment. Traditional coaxial speakers typically rely on a single center-mounted tweeter, which can limit how evenly high frequencies are dispersed throughout the boat. A.T.A.C. takes a different approach by using multiple strategically positioned tweeters to spread high-frequency sound across a much wider listening area.

That wider dispersion means more people throughout the boat can hear crisp, detailed highs instead of the sound being focused toward one narrow listening position. At the same time, moving away from a traditional single center-mounted tweeter arrangement allows the midrange driver to focus on producing strong, impactful midbass. The result is a more balanced speaker that delivers clear highs, powerful midbass and higher overall output.

In the new Memphis MM Series in-boat speakers, A.T.A.C. technology is engineered specifically for the challenges of listening on the water. Whether you’re sitting at the helm, relaxing in the bow or moving around the boat, the goal is the same: bigger, clearer sound that carries across the entire listening area and stays detailed even when competing with wind, waves and engine noise.