4-Channel Class D Marine Full-Range Amplifier, 100 W x 4 @ 2 Ω / 75 W x 4 @ 4 Ω - 14.4V
This tiny amplifier packs a serious full-range punch, delivering a staggering 100 watts to each of its four channels into 2 Ω (14.4V, 1% THD). The breakthrough that makes this much power possible in such a small chassis is our NexD™ ultra-high-speed switching design, which allows for full bandwidth Class D operation with extremely low distortion and outstanding efficiency.
Use the M400/4 in combination with our M600/1 monoblock to build a 1000 W amplification system to power four satellites and a subwoofer... and fit the whole thing under a seat. Or, use the M400/4 by itself to power two satellites, plus a subwoofer. With M-Series amplifier, the possibilities are endless.
The M400/4 includes a 12 dB / octave filter for each channel bank, which can be configured as a low-pass or high-pass filter and offers continuously variable cutoff frequency selection from 50-500 Hz. With the addition of an HD-RLC remote level control (sold separately), the amplifier's Ch. 1 & 2 level or overall level can be directly controlled from a remote location.
This marine amplifier features white and gray powder-coat finishes, a gasketed cover for the controls and stainless steel hardware for durability in the marine environment.
We partner exclusively with the world's leading marine brands—from Seakeeper to Princess Yachts—ensuring every product and service meets the highest standards of luxury and performance. Our team of seasoned experts brings decades of experience from renowned companies like Princess Yachts and Oyster Yachts, delivering meticulous attention to detail that transforms your vessel into a masterpiece.
Unlike typical suppliers, Aquamare provides comprehensive yacht stewardship under one roof. From bespoke refits and advanced system installations to ongoing maintenance and logistics support, we handle every aspect of your yacht's needs—eliminating the complexity of managing multiple vendors while ensuring seamless coordination.
Our three-continent presence spanning Plymouth (UK), Fort Lauderdale (USA), Queensland (Australia), and Baie des Anges (France) means consistent, world-class service wherever your yachting adventures take you. With 500+ successful luxury transformations completed annually and 150+ country reach through our distribution network, we deliver excellence globally while maintaining personalized, local service.
As Seakeeper's 2023 EMEA Dealer of the Year and Garmin's top-performing UK dealer, we're recognized industry leaders in marine innovation. Our certified installations of cutting-edge systems—from gyroscopic stabilizers to advanced navigation technology—are performed by specialists who ensure peak performance, regulatory compliance, and seamless integration with your vessel's existing systems.