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At US$15, this RCA SA-155 is a sharp bargain, sitting well below the 25th percentile of US$20 in the typical used market. The 13 comparable listings from our database show a median of US$20, making this asking price a clear buying opportunity for enthusiasts seeking value.
This compact stereo amplifier is well-regarded for its versatility, offering three input sets to connect a tuner, turntable, and CD player, plus a front-panel jack for portable devices. Its 20–25,000 Hz frequency response and 1.8 watts RMS per channel make it a good little setup for less than US$100 in general use. Paired with the RCA TM-155 Mini Tuner, it delivers a complete, original-owner audio experience with meaningful upside for timing and rarity in the current vintage market.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
RCA traces its origins to 1919, when the Radio Corporation of America emerged from a U.S. government-backed reorganization of the Marconi Wireless Telegraph Company of America, prioritizing national security in radio technology. Born in the United States amid post-World War I innovation, the company lacked a single notable founder but was propelled by visionaries like David Sarnoff, who foresaw radio's mass-market potential. Its heritage spans a century of pioneering milestones, from acquiring the Victor Talking Machine Company in 1929—bringing the iconic "His Master's Voice" Nipper dog trademark—to launching early television at the 1939 New York World's Fair and shaping Nashville's recording scene through RCA Studios.
Historically a titan in consumer electronics, RCA focused on radios, phonographs like the famed Victrola, records, and later innovations such as eight-track tapes and magnetic recording. Today, under VOXX International, the brand emphasizes accessible audio-video accessories, including speakers, turntables, headphones, and portable systems, rather than specialized hi-fi components like amplifiers, DACs, or high-end cables.
RCA holds a venerable position as a vintage icon and entry-level mainstay, evoking mid-20th-century American living rooms rather than high-end audiophile pursuits. Its reputation rests on reliable, value-driven performance for everyday listeners, appealing to nostalgia seekers and budget-conscious buyers over niche boutique or collector-grade exclusivity.
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