About E1DA
E1DA is a family-run HiFi audio brand founded by Russian engineer Ivan Khlyupin, currently based in China. Motivated by the lack of affordable, powerful DAC/AMP solutions for planar headphones, Ivan and his son Tyoma began designing high-performance portable audio gear. Best known for their PowerDAC, Cosmos measurement series, and compact USB DACs like the 9038S and 9038D, E1DA products are admired for technical engineering, sound quality, and artisan attention to detail. Their approach combines direct-to-consumer pricing and meticulous product calibration, tailored for audiophiles and professionals seeking portable performance without compromise.