The Onkyo TX-840 is a quartz synthesized tuner amplifier designed for both casual and dedicated audio enthusiasts. This unit supports various audio sources, including phonographs, tape decks, and compact disc players, making it suitable for a range of listening preferences. Its design incorporates multiple connectivity options, allowing users to easily integrate it into existing audio setups. The amplifier features a built-in tuner with FM and AM capabilities, enhancing its versatility. The front panel includes controls for tuning, volume, and input selection, while also accommodating remote control operation for added convenience. Built to deliver quality sound performance, it is noted for its simplicity and efficiency, making it a practical choice for those seeking an effective stereo setup without the complexities of modern digital equivalents. The device also contains multiple output options for additional components like VCRs and TVs, further contributing to its adaptability in various media environments.