Rare collector's item. The Yamaha CDX-700 is a very well-regarded vintage CD player from Yamaha’s “Natural Sound” era, produced around 1987. It sits above entry-level models and is considered one of Yamaha’s better late-1980s players thanks to its solid transport, Burr-Brown DAC, and reliable construction. Description Main features: single-disc CD player Yamaha “Natural Sound” series Burr-Brown PCM56P 16-bit DAC 4× oversampling digital filter programmable playback shuffle/repeat direct track access high-quality transport mechanism available in black or silver Technical specs: Frequency response: 5Hz–20kHz Dynamic range: >96 dB Signal-to-noise ratio: >100 dB THD: 85 dB Weight: about 4.2–4.6 kg Original price: around 1000 DM in Germany ¥63,800 in Japan. The CDX-700 also used a surprisingly serious transport mechanism related to higher-end Yamaha players. Some enthusiasts note similarities with transports used in flagship models. Sound quality The CDX-700 is generally known for: smooth, warm presentation strong midrange non-fatiguing treble solid stereo imaging Compared with many cheap 1990s CD players: heavier construction better analog stage cleaner power supply more “analog-like” sound character Vintage audio enthusiasts still like these Yamaha Natural Sound players because they tend to sound musical rather than overly sharp or clinical.