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US$199 is a little ambitious for this one; the used market evidence points more toward about US$130–US$150 for a clean example, with some asking prices around US$150 and a lower one at about US$130. At US$199, I’d want a notably better-than-average package, because that’s above the usual range for a used M9.
That said, the M9 is still a well-liked all-in-one DAC/headphone amp: punchy, quiet, and feature-rich for a desktop setup, with balanced outputs and enough versatility to keep it relevant. If it’s truly tidy, includes the original box and accessories, and has been used gently as a DAC, it’s a solid piece — just not a bargain at this number unless the condition and extras are unusually strong.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
SMSL, founded in 2009 as Foshan ShuangMuSanLin Technology Co., Ltd. in Shenzhen, China, emerged from the country's burgeoning tech hub to specialize in digital audio innovation. The company quickly expanded with a Hong Kong branch, VMV Technology, in 2013, targeting higher-end exports and establishing a global footprint across more than 30 countries. Its early focus on domestic sales laid a solid foundation, evolving into a recognized name in affordable hi-fi.
The brand excels in digital-to-analog converters (DACs), headphone amplifiers, and power amplifiers, delivering high-performance components like the iconic Sanskrit series—featuring DACs, preamp-capable headphone amps, and linear power supplies. SMSL emphasizes in-house R&D for stylish, well-built devices incorporating premium technologies such as THX AAA-888 amplification, prioritizing audio fidelity without unnecessary frills.
Positioned as a mid-tier leader in the value-driven hi-fi market, SMSL earns praise for punching above its weight, offering audiophile-grade sound at accessible prices that rival pricier competitors. Popular among discerning buyers seeking reliability and transparency, it stands out for meticulous component selection, though some note occasional quality concerns with budget imports. For the knowledgeable enthusiast, SMSL represents smart, modern Chinese engineering at its finest.
See all SMSL listings on RADAR.
