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Selling an as new SP4000 that I got as part of a store credit at A2A PerthAbout 6 months oldHas not left the house and has been in protective case since day one, as well as screen protector Can’t justify keeping it despite how good it sounds!Will be factory reset and sent in original boxing with ...
# Astell&Kern SP4000 Digital Audio Player – Buyer Notes
This is a seller's market for vintage DAPs right now; enthusiasts are actively hunting for discontinued models. At AUD $4,500, the SP4000 sits well above typical used pricing for this model—expect to find comparable units in the AUD $2,200–AUD $3,100 range depending on condition and storage history. Unless this unit is in flawless condition with all original accessories (dock, cables, box), the ask is ambitious. Even mint examples rarely command this premium in the secondhand market.
Before committing, verify the battery health—these units are now several years old, and degraded cells are the primary failure point. Confirm the screen has no dead pixels or discoloration, test all buttons and the wheel responsibly, and insist on seeing it powered on with music loaded. Request proof of the charger and cable included; replacements are expensive and hard to source. Ask for honest detail on storage conditions; units left in heat or humidity often develop audio dropouts or UI lag that aren't immediately obvious.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Astell&Kern emerged from South Korea's rich audio heritage, launching its first product in 2012 and officially founding as a brand in 2013 in Seoul. Rooted in the legacy of iriver's MP3 players dating back to 1999, the company—now a subsidiary of Dreamus—embodies a philosophy drawn from its name: "Astell" (Latin for star) and "Kern" (German for core), symbolizing an unrelenting pursuit of music's original sound. This origin story reflects decades of accumulated expertise in premium audio craftsmanship.
The brand focuses on high-fidelity portable and home audio solutions, excelling in digital audio players (DAPs) like the iconic AK100 and A&ultima series, alongside headphones, in-ear monitors through collaborations, home audio systems, and accessories. Their designs prioritize advanced noise reduction, proprietary amplifier architectures, and support for hi-res audio files, delivering uncompromised playback without venturing into speakers, turntables, or cables.
Positioned firmly in the high-end audiophile market, Astell&Kern commands respect among discerning listeners for its "Difference in Sound Quality"—a sensory depth that captures the emotion and space of every note. Renowned for luxury builds and cutting-edge R&D, it leads the global premium DAP segment, appealing to buyers who demand superiority over mass-market compromises.
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