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Vintage Proton AC-300 Stereo Compact Disc CD Player No Remote 1980s SERVICED ✅Player is in good used condition, having been serviced by myself personally. When I first acquired this unit the CD tray had a hard time ejecting from the face of the player. Since then I have replaced the drive belt responsible for the trays movement, cleaned the players interior with compressed air, and polished the laser lens with isopropyl alcohol. The player is able to properly track and play any CD that is loaded into it, without showing any audible incongruities that I can note. All buttons along the face are appropriately responsive to their designated actions, and power chord is void of any tears or frays along the length of the cable. Player is in decent shape cosmetically, showing only some signs of age-related wear around the exterior. Only notable flaws would be the marks see cross the top face of the metal bonnet, as well as the display screen being dimmer than it was originally. In addition, there is a dead pixel on the screen in the bottom right corner of the display. Unit does not include any remote control, but will be shipped with a set of stereo L/R RCAs as shown in the listing images. See all pictures closely for details of condition, and specifications of the item. I specialize in shipping electronics such as this, and can guarantee that every precaution will be taken to ensure safe delivery of your purchase. Message me with any questions or concerns you may have. FREE SHIPPING ONLY TO THE LOWER 48 STATES
A fair ask, maybe even slightly attractive if it’s been properly serviced. The same listing shows up in current market data at US$199, which sits right in the normal pocket for a vintage Proton CD player rather than at bargain-bin or collector-inflated money.
What makes it appealing is the Proton name: these are usually well-liked for solid transport design and an honest, musical presentation, and a serviced example can be a very usable old-school spinner. The big buyer question is completeness and proof of work—original remote, clean tray action, and recent servicing matter more than cosmetics here, since missing accessories or an unverified “works” claim can quickly erode value.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Proton Electronic Industrial Co., Ltd. emerged from Taiwan in 1981, establishing its base in Banciao, Taipei-Hsien, as a manufacturer targeting the U.S. consumer audio market with high-quality components. Linked to Fulet Electrical, which produced notable NAD amplifiers, the brand launched around 1984 to expand into consumer electronics, including acclaimed TV monitors like the 600M and 602M models. By 2009, it remained active, building on a heritage of precision engineering from shared facilities with brands like NAD and Dynaco.
The company focused on premium hi-fi gear optimized for real-world performance, emphasizing tuners, receivers, amplifiers, and integrated systems that drove everyday loudspeakers with exceptional clarity. While not delving into headphones or cables, Proton's lineup prioritized robust playback under practical listening conditions, from radio reception to vinyl and cassette sources, earning praise for its engineering rigor in the 1980s.
Proton holds a solid reputation in vintage hi-fi circles as a mid-tier powerhouse, favored by collectors for its reliable, high-value sound that punched above its price point. Positioned as an accessible alternative to elite brands, it appeals to discerning buyers seeking durable, no-nonsense performers rather than boutique exotica, with ongoing interest in its schematics and restored units.
See all Proton listings on RADAR.
