The Marantz PM-230 is an integrated amplifier that was part of Marantz's lineup during the 1980s. It features a robust design with a focus on audio performance, offering a powerful output and various connectivity options for audio sources. The PM-230 is known for its warm sound signature and user-friendly interface, including tone controls and input selection. It typically includes features like multiple line-level inputs, a phono input for turntables, and speaker output terminals that accommodate various speaker configurations.