The Onkyo DX-6550 is a CD player that was manufactured between 1989 and 1990 as part of the Integra Series, showcasing Onkyo's commitment to quality audio equipment. This model features a sleek design available in black or silver and is built with a durable metal case and drive tray. It includes essential remote control functionality for user convenience. The unit consumes 15 watts of power and has dimensions measuring 435 x 131 x 365 mm with a weight of 8 kg. It was originally priced at approximately 1100 DM. The DX-6550 offers multiple connections, including two analog outputs (one fixed and one variable), two digital outputs (one optical and one coaxial), and a headphone jack with adjustable volume. The performance specifications are impressive, with a signal sensing that is optical and non-touch, and a rotation speed that ranges from 500 to 200 RPM. The device supports a linear speed between 1.2 and 1.4 m/s. It boasts an 18-bit linear quantization, a sampling frequency of 176.4 times 4, and a frequency response spanning from 5 Hz to 20 kHz. The distortion factor is very low at 0.003% at 1 kHz, while the dynamic range and channel separation are both rated at 96 dB, indicating high-quality audio output. Features include programmable title memories, support for CD-R/CD-RW playback, and various playback functions such as repeat and shuffle. Notably, it lacks support for CD text and MP3 formats. The design includes separate circuit boards for analog and digital processing, as well as a dedicated power supply for different components.