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The age matters here: this is the first-generation Sonos amplifier, later superseded by the Connect:Amp and then the much newer Sonos Amp. At £37, though, it is a strong deal: your comparable listings put the 25th percentile at £31, median at £41, and 75th percentile at £53, so this sits comfortably below typical market level.
The ZP100 remains a useful little all-in-one for a secondary system, delivering 50 watts per channel into 8 ohms, with Sonos multi-room streaming, analogue line input/output, subwoofer connection, and Ethernet built in. It is especially appealing if you already use, or are happy to use, the older S1 Sonos ecosystem; it can drive conventional passive speakers without needing a separate amplifier. Confirm that it powers up, joins the S1 app, and includes its power lead, but at £37 a working example looks like a genuine bargain rather than a merely fair buy.
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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