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Are you already equipped with the Sonnex controller this expander requires? At US$297, this is a fair-to-slightly-strong asking price: it sits just above the US$145 median but below the US$300 75th percentile from 215 comparable listings. It is not a bargain, but it is defensible if tested and complete.
The appeal is substantial for the right installation: eight stereo amplified zones, 140 watts per channel into 8 ohms, 240 watts into 4 ohms, and bridging capability for higher-power rooms. Independent DSP and Crestron’s robust rack-oriented build make it a capable whole-house amplifier, especially for someone expanding an existing Sonnex system. Confirm that the seller demonstrates all zones and includes the required Sonnex connectivity; without the matching controller, its usefulness is limited.
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.
