RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
Nobsound’s little class-D mono plate amps have a solid rep as affordable, no-nonsense subwoofer drivers, and this one lands in fair territory. At US$50, it sits just above the US$42 median for recent used comps and well below the US$69 75th percentile, so it’s priced reasonably rather than cheaply.
That makes it a sensible buy if you want an economical way to wake up a passive sub or a DIY bass project. The “tested” note matters here, since these compact amps are all about practicality: enough power for sub duty, simple hookup, and decent value when working properly. If it’s clean, complete, and truly tested, this is the sort of listing that should appeal to a buyer who wants function over fuss.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Nobsound is a Chinese hi-fi brand associated with Shenzhen-based Douk Audio/Cavins Technology. The company’s own materials say the Nobsound brand was founded in 2014, following an earlier company presence in the audio market, though some third-party writeups place the broader business origin in 2013. No notable individual founder is clearly identified in the sources available, so the brand is best described as a Shenzhen-born, mass-market audio label rather than a founder-led boutique name.
Its product line is centered on affordable electronics for desktop and small-room systems: integrated and power amplifiers, tube and hybrid amplifiers, headphone amps, DACs, phono stages, preamps, audio switches, and related accessories. The brand is especially known for compact, visually distinctive tube-inspired gear that appeals to buyers looking for low-cost experimentation rather than reference-grade separates. In practice, Nobsound sits alongside Douk Audio as part of the same family of products and overlaps heavily in branding and model selection.
In the market, Nobsound is generally seen as a budget-to-entry-level brand with a strong value proposition, not a high-end or audiophile-luxury player. Its reputation is tied to affordability, feature-packed designs, and wide availability, but also to the compromises that often come with inexpensive Chinese audio gear: inconsistent finishing, variable measurement performance, and uneven long-term reliability. For hi-fi buyers, it occupies a pragmatic niche—useful for casual listening, desktop setups, and tube-flavored sound on a budget, but not typically a collector’s or prestige brand.
See all Nobsound listings on RADAR.
