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This is a fair ask, sitting a touch under the £45 median and inside the main used range anchored by £34 to £55. At £37, it is not a bargain-bin steal, but it is priced sensibly enough to look like a decent buy rather than an ambitious listing.
The ZP100 has a good reputation as a sturdy early Sonos amp, with the usual appeal of simple multi-room streaming and a built-in power stage that still makes sense for a basic secondary system. At this price, the main upside is value: if it is clean, working properly, and comes with the right power lead and any needed Sonos-friendly setup bits, it is an easy way into a capable piece of older Sonos kit without overpaying.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Sonos emerged from Santa Barbara, California, in 2002 as Rincon Audio, Inc., founded by John MacFarlane, Craig Shelburne, Tom Cullen, and Trung Mai. MacFarlane's success with Software.com provided crucial seed funding for their audacious goal: a wireless multi-room music system free from the wires and complexity plaguing home audio at the time. Renamed Sonos in 2004, the company debuted its pioneering ZonePlayer and controller in 2005, cementing its roots in innovative, user-centric sound technology.
The brand specializes in wireless speakers, soundbars, and home theater systems designed for seamless multi-room playback and integration with streaming services. Sonos offers everything from portable Bluetooth options like the Roam to high-fidelity architectural speakers and subwoofers, alongside recent forays into headphones and whole-home audio solutions. Amplifiers, turntables, DACs, and cables fall outside their core focus, which prioritizes app-controlled ecosystems over traditional hi-fi components.
Sonos holds a commanding mid-to-premium position in the consumer audio market, renowned for inventing wireless HiFi and setting the standard for effortless, high-quality sound. Trusted by audiophiles and casual listeners alike, it blends accessibility with sonic excellence, dominating the smart speaker segment while appealing to discerning buyers seeking scalable, future-proof systems.
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