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At US$399, this sits above the current used-market median of US$142 and even above the 75th percentile of US$299, so it reads as ambitious rather than a bargain. New, this kind of Crestron Sonnex expander was a serious five-figure commercial-grade piece, but on the used side the ask is still pushing past the typical range unless the condition, completeness, and provenance are especially strong.
What makes it interesting is the build: these were designed as serious whole-house distribution amps, with high power on tap and the kind of integration-focused reliability Crestron buyers value. That said, at this price the buy is best only if it’s verified working, includes the right accessories, and the system fit is clear; otherwise, you’re paying a premium for a niche piece that can be harder to deploy than a conventional multiroom amp.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Crestron was founded in 1972 in the United States by George Feldstein and built its reputation in professional AV, automation, and control systems rather than in traditional consumer hi-fi. It is a privately held company headquartered in Rockleigh, New Jersey, and its core business has long centered on integrated technology for commercial spaces and high-end residential systems.
In audio, Crestron is best known for installation-oriented products: control processors, AV distribution, streaming audio-over-IP systems, amplifiers, and architectural speakers. Its residential audio line is built around the Crestron Home platform and DM NAX distribution hardware, while its speakers are typically developed with partners such as Origin Acoustics rather than sold as standalone audiophile separates.
In the market, Crestron sits in the premium custom-install and high-end integration segment, not the conventional hi-fi retail space. Its appeal is strongest among system designers, integrators, and affluent homeowners who want whole-house audio, automation, and discreet in-wall or in-ceiling sound, rather than collectors looking for turntables, headphones, or vintage separates. It is a niche but major brand in residential and commercial integration, with audio positioned as part of a broader control ecosystem.
See all Crestron listings on RADAR.
