Brand: Sony
The Sony CDP-337ES (ESD) is a high-end CD player and digital transport that was released by Sony Corporation in the late 1990s. The "ES" in the model name stands for Essential Sound, which was a series of products produced by Sony that aimed for accurate and faithful reproduction of music.The CDP-337ES (ESD) was a flagship product in Sony's lineup of CD players, and its price reflected its high-end status. It featured a decoupled-type mechanism, which minimized external vibrations from affecting the playback authenticity of the CD, and a 16-bit/44.1 kHz digital output with upsampling to 32/44.1 kHz using Sony's proprietary UPC (Ultra Precision Clock) system. The CDP-337ES (ESD) was also compatible with FireWire (IEEE 1394) digital audio interfaces, which allowed it to be used as a digital transport and integrate with other high-quality audio equipment. Its esoteric extras and distinctive design coupled with Sony's reputation for quality audio equipment made it a highly sought-after item by audiophiles at the time. The CDP-337ES (ESD) and its sibling products of the Essential Sound series were eventually succeeded by evolving technology and updates from Sony's Research & Development teams.