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With the listing’s condition marked as unknown, treat the US$148 asking price as a fair market entry rather than a guaranteed bargain, but it still sits right at the median of US$144 from 66 recent comparable USD listings, making it a solid, no-surprise buy in the current used market for this model. The 25th percentile is US$92 and the 75th is US$200, so US$148 is squarely in the middle of the range—not a strong deal, but not ambitious either.
The Niles SI-275 is well-regarded for its rock-solid construction, high-current output, and ability to drive low-impedance speakers down to 2.66 ohms without complaint. Owners report tight bass, punchy dynamics, and clean power that stays cool even when fully clipped. If this unit is in original-owner condition and includes the sub-out and standard accessories, it’s a worthwhile upgrade for multi-channel or dedicated 2-channel setups at a fair price.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Niles Audio traces its origins to 1978, when it launched in Miami, Florida, as a pioneer in switching systems for audio retailers. From these humble beginnings, the company evolved into a cornerstone of custom home audio, earning its stripes as a founding member of CEDIA and building a legacy of installer-focused innovation over four decades. Acquired by Linear LLC in recent years, Niles continues to uphold its heritage while expanding under new ownership.
The brand specializes in comprehensive whole-home audio solutions, offering over 500 products that span architectural speakers, amplifiers, receivers, automation controls, and accessories for seamless integration. Its portfolio emphasizes multi-room distribution, home theater systems, outdoor landscape audio, and cutting-edge options like the nearly invisible Cynema Soundfield in-wall soundbar, all designed for custom integrators to deliver professional-grade performance across indoor and outdoor spaces.
Niles holds a strong mid-to-high-end position in the custom installation market, renowned among savvy homeowners and professionals for reliable, high-quality distributed audio that blends effortlessly into modern living. Far from a vintage collector's niche, it remains a go-to for discerning buyers seeking robust, integrator-friendly systems that prioritize exceptional entertainment without compromise.
See all Niles Audio listings on RADAR.
