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This £72 asking price is fair but slightly above the typical used market, sitting just £4 over the £68 median derived from three recent GBP comps. While not a bargain, it’s a reasonable entry point for a well-regarded portable DAC/amp that delivers serious performance for its size.
The NX4 DSD is beloved for packing the ES9038Q2M Sabre DAC and DSD decoding into a compact, battery-powered form that clocks 28 hours of amp use. It handles 192kHz PCM and DSD, making it a versatile companion for desktop or travel use. At this price, it’s a solid buying opportunity for anyone wanting high-end USB DAC performance without the desktop footprint, especially if the listing includes original accessories and shows no signs of wear.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Topping Audio, founded in 2008 in China, emerged from a team of dedicated audio engineers committed to democratizing high-fidelity sound. Without a single prominent founder in the spotlight, the brand quickly distinguished itself through rigorous innovation, amassing over 20 patents and pioneering technologies in digital audio processing. This heritage of independent R&D, backed by more than 30 experienced engineers, has positioned Topping as a global Hi-Fi contender focused on precision and accessibility.
The company specializes in desktop and portable audio gear, excelling in digital-to-analog converters (DACs), headphone amplifiers, and power amplifiers. Flagship models like the D90 DAC showcase cutting-edge components, such as the AKM AK4499EQ chip, delivering studio-grade performance. Topping also offers audio interfaces and, under its TOPPING Professional sub-brand, pro-level solutions for demanding studio environments, all emphasizing meticulous testing for reliability and sonic purity.
In the competitive hi-fi market, Topping occupies a mid-tier niche as an audiophile favorite, renowned for punching above its weight with exceptional value. Praised for build quality, intuitive design, and uncompromising transparency at affordable prices, it rivals pricier brands while earning loyal followings on forums and among desktop enthusiasts seeking high-end results without premium markups.
See all Topping Audio listings on RADAR.
