Introducing the Marantz MM500 MM500U Power Amplifier from Japan. This device boasts of the Dolby Pro Logic surround sound format for an immersive audio experience. With 5 channels, it is perfect for amplifying audio in your home audio setup. The brand is well known for producing high-quality audio equipment. This model is in excellent condition and works great. Get ready to elevate your audio experience with this Marantz Power Amplifier. Thanks for looking