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This Niles SI-250 2-channel power amplifier has been tested and working
Niles Audio 5 views

This Niles SI-250 2-channel power amplifier has been tested and working

USD$145
Location
US
Seller
allporsches
Source
eBay US
Posted
25 Aug 2026
Last seen
2d ago

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Our Thoughts RADAR AI

At US$145, this lands right at the median of the recent used market, so the timing matters mostly because it’s an older, discontinued two-channel amp and a clean, tested example is what you want before inventory thins further. It’s a fair price rather than a steal, but not a stretch.

What makes it appealing is the straightforward Niles reputation: these amps are valued for solid, unfussy power and reliable multi-room or secondary-system duty, with enough grunt to make practical speakers sound composed. Tested-and-working status is a plus, and if the chassis is clean and it includes the right power cord and any original mounting hardware, this is the sort of sensible buy that should deliver exactly what it promises.

Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.

About Niles Audio

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.

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