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At US$150, this SMSL Audio SU-9 is a strong deal, landing well below the 25th percentile of US$175 from our recent comparable listings, and significantly under its original US$439.99 new price. The median used asking price sits at US$300, with the 75th percentile at US$400, making this US$150 listing roughly half the typical market value.
The SU-9 earns its reputation for native MQA decoding, top-tier Bluetooth including LDAC and UAC up to 1.2 Mb/s, and the high-performance commercial DAC chip wrapped in a clean interface with an LCD screen. At this price, it’s a genuine buying opportunity for anyone wanting premium wireless and MQA performance without the new cost, assuming the unit is functional and includes basic accessories.
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.
