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Are you looking for a capable vintage power amp at a bargain price? At USD 150, this is a strong deal: it sits below the USD 155 25th-percentile asking price and well under the USD 257 median from 994 comparable listings. “Tested and functional” makes the price especially attractive, assuming the seller’s description is accurate and the unit is genuinely the model indicated.
The 2155 is a well-regarded, straightforward NAD stereo amplifier with useful current delivery, a clean, unfussy presentation, and enough power for many real-world speakers. Its simple architecture also makes it appealing to enthusiasts who value serviceability over novelty. At this price, it is worth pursuing for a second system, a restoration project avoided, or a dependable vintage setup. Confirm both channels work properly, listen for hum or intermittent controls, and check that the rear terminals and power cord are sound.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
NAD Electronics was founded in 1972 in London by a group of European audio importers frustrated with the hype surrounding Japanese hi-fi products. Led by visionary American executive Martin L. Borish and brilliant engineer Bjorn Erik Edvardsen, the company emerged from a quest to deliver high-performance audio at accessible prices. Their breakthrough came with the NAD 3020 integrated amplifier, the best-selling hi-fi amp in history, which embodied a philosophy of stripping away non-essentials to prioritize pure sound quality.
The brand focuses on core hi-fi categories, excelling in amplifiers—pioneering Class A/B, Class G, and hybrid digital designs—alongside integrated receivers, AV processors, turntables, CD and cassette players, and modern streamers. While not venturing into speakers, headphones, or cables, NAD emphasizes source components and amplification that integrate seamlessly into home theater and custom installation setups, always upholding principles of innovation, simplicity, performance, and value.
Today, as part of Canada's Lenbrook Group and sold in over 80 countries, NAD holds a commanding mid-tier position in the market, revered by audiophiles for affordable excellence rather than ultra-high-end excess. Its "Truth in Power" legacy earns cult status among knowledgeable buyers seeking reliable, award-winning gear that punches above its price, blending vintage heritage with contemporary streaming and hybrid tech.
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