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Our Thoughts RADAR AI

Is A$650 low enough to justify jumping on it? Against recent AUD comps, it’s clearly ambitious: the median is A$352, the 75th percentile is A$398, and this ask lands well above that, so it would need exceptional condition or a strong accessory bundle to make sense.

The EF400 is well-liked because it’s a muscular, easygoing desktop amp/DAC with enough drive for demanding headphones and a slightly relaxed presentation that suits long listening sessions. If it’s clean, fully functional, and includes the original power supply and box, there’s real value here—but at this price, the buyer should be comparing it against new-stock alternatives and waiting unless the extras or provenance are unusually strong.

Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.

About Hifiman

Hifiman traces its origins to 2005, when Dr. Fang Bian, a chemist with a lifelong passion for audio electronics, founded Head-Direct in the United States as an online retailer and headphone developer. By 2007, he rebranded to Hifiman, relocating manufacturing and R&D to Tianjin, China, while maintaining sales operations in the US and beyond. This fusion of American entrepreneurial drive and Chinese production expertise propelled the brand from modest in-ear monitors to global prominence.

The company specializes in high-end headphones, particularly planar-magnetic and electrostatic models renowned for their detail and soundstage, alongside complementary portable digital audio players, headphone amplifiers, and cables. Early milestones like the 2009 HM-801—the first pocket-sized high-resolution player—and the HE-5 planar headphones established its innovative edge, with co-founder Binwu He pioneering planar technology integration.

Hifiman commands a elite position in the audiophile market as a high-end leader, delivering reference-grade performance that rivals legacy brands. Its products earn consistent acclaim for transparency and musicality, appealing to discerning buyers seeking uncompromising planar transduction without vintage pretensions or mid-tier compromises.

See all Hifiman listings on RADAR.

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