The MODEL M4 offers an innovative and smart approach to traditional amplifier designs. A rack-mountable amplifier for dedicated music enthusiasts, it delivers superior sound from a wide range of music streaming services, locally connected music sources, and your TV (via optical inputs). The industrial design of the MODEL M4 complements the latest generation of Marantz's hi-fi and AVR products. It has been carefully designed to provide the exceptional robustness, simple control functionality, and flexible configuration necessary for successful home integration.

Power where you need it

The MODEL M4 provides enough power to drive speakers in four rooms of your home. For even greater power, use the Bridge Mode function which offers up to 4 x 200 W of performance.

Any sound, anywhere

Stream your favorite music or TV sound (via optical inputs), independently or collectively, to four different rooms with the four built-in HEOS units of the MODEL M4.

Fully equipped, fully flexible

With all the built-in features that any complete system might need, the MODEL M4 is extremely robust, easy to use, and flexible, making multi-room use easy.

Designed for high resolution

Whether you are using streaming services, your network, optical digital, or USB, with the MODEL M4 you will enjoy your sound with the high resolution it deserves.