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Compared to the obvious alternative of a generic sub amp at this price point, the US$50 asking price for this SAE A105 is a genuine bargain, sitting far below the 25th percentile of US$199 and the median of US$350 from recent comparable listings. This is an exceptional deal that demands immediate attention.
The SAE A105 is a well-regarded, true subwoofer amplifier that functions as a crossover, sending mid and high frequencies to your main speakers while driving the sub. Its Class AB design offers reliable performance, and finding one in working condition at such a low price is a rare buying opportunity. While large power capacitors can age and shorted filter capacitors are a known failure point, the price is so low it justifies testing or minor repair, making this a worthwhile investment for any enthusiast.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
# SAE (Scientific Audio Electronics)
Scientific Audio Electronics emerged from Los Angeles in 1968 when Morris Kessler partnered with Ted Winchester and Beth Winchester to pursue an ambitious goal: building the world's finest audio amplifier. Kessler had been designing and hand-building amplifiers since the early 1960s, and the partnership formalized his vision into a commercial enterprise. The company operated through the 1980s, establishing itself as a significant player in the golden age of solid-state hi-fi before ceasing operations in 1988.
SAE built its reputation almost exclusively on power amplifiers, introducing the Mark 2—a 60-watt solid-state design that earned comparison to the legendary Marantz Model 9 tube amplifier in Stereophile magazine. Beyond amplifiers, the company pioneered several audio innovations, including the world's first graphic equalizer, the first digital read-out tuner, and the first phonograph pop-and-click filter. These products reflected SAE's engineering-forward philosophy and commitment to advancing high-fidelity technology.
SAE occupies a revered position in vintage hi-fi collecting and audio history. During the 1970s, the company was synonymous with high-end solid-state amplification, competing directly with established names like McIntosh, Marantz, Pioneer, and Sansui. Their equipment commanded premium pricing—a complete SAE rack system retailed for $6,000, equivalent to a top-tier Cadillac. Today, SAE remains a collector's brand, remembered by audiophiles as a legitimate innovator that produced musically open and refined components during hi-fi's most formative era.
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