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Optimus Prime's Stereo Equipment Old School Audio - Old School Prices - Professionally Tested Product Description Up for sale is a Pioneer SX-251R stereo receiver, fully tested and confirmed working. Both channels produce clean audio output, the AM/FM tuner locks onto stations properly, and all inputs and controls function as intended. Unit shows normal cosmetic wear consistent with age and use. Remote not included. Please review all photos for details. Highlights At A Glance ✔ Fully tested and verified ✔ Good cosmetic condition with minor wear from use ✔ Free 30-day returns ✔ Fast, insured shipping Testing & Verification This Pioneer SX-251R was bench tested across all functions prior to listing. Both stereo channels were verified for clean, balanced output, and the AM/FM tuner was confirmed to receive and lock onto stations correctly. All input switching, volume, balance, bass, and treble controls were exercised and operate smoothly with no issues detected. Shipping & Returns Fast, insured shipping from Minnesota. Free 30-day returns. Item is carefully packaged for safe delivery.
US$80 is fair to slightly good for this one, and not a stretch if it’s clean and fully working. Recent asking prices I found cluster around US$59, US$69.99, and US$84.98, so this listing sits right in the middle of the normal used range rather than looking like a bargain-bin steal or an overpriced ask.
What makes it appealing is the classic Pioneer 50 WPC package: solid everyday receiver power, built-in phono support, and the onboard equalizer that gives it a bit more flexibility than a basic entry-level box. For a buyer, the upside is best when it’s original, unmolested, and has been tested end to end; if it powers up quietly, switches cleanly, and the controls are stable, it’s a sensible pick at this price.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Pioneer traces its roots to 1937 in Tokyo, Japan, when founder Nozomu Matsumoto, inspired by the thrill of imported hi-fi speakers, developed the A-8 dynamic speaker and launched a radio and speaker repair shop. The business formalized as Fukuin Shokai Denki Seisakusho in 1938, evolving into Pioneer Corporation and embodying Matsumoto's philosophy of "Move the Heart and Touch the Soul" through audio innovation.
The brand excels across diverse hi-fi categories, pioneering Japan's first headphones in 1960 with the SE-1 and the world's first component-based stereo system in 1965 via the PSC-5A. Pioneer's portfolio spans amplifiers, speakers, turntables, and DACs, alongside landmark car audio advancements like the 1975 Supertuner-equipped stereo and the 1986 in-car CD player, blending home and automotive excellence.
Today, Pioneer holds a commanding mid-to-high-tier position in the market, revered for reliable, performance-driven gear that balances premium quality with accessibility. Its vintage components attract collectors, while current offerings appeal to discerning buyers seeking robust, innovative sound reproduction without boutique excess.
See all Pioneer listings on RADAR.
