The Sony STR-DE225 is a stereo receiver that was released in the late 1990s. It typically features a power output of 100 watts per channel, providing ample power for driving speakers in a home audio setup. The receiver includes various input options, such as multiple analog inputs, a built-in AM/FM tuner, and sometimes digital inputs depending on the specific model configuration. It is known for its straightforward user interface and efficient sound reproduction, making it suitable for both music listening and home theater applications. The STR-DE225 supports various sound processing features, including surround sound formats, and it often includes bass management options to enhance the listening experience. The design is functional, with a prominent front panel displaying controls and indicator lights for ease of use.