Slickwraps Villain Series –
HiFiMAN HE-400S on Amazon –
Open-back headphones are a no-brainer for audiophiles. They provide extraordinary soundstage, exceptional imaging, and beat closed-back earphones in every regard. Unfortunately, they are usually expensive and need an amplifier due to the planar magnetic or electrostatic motorists. The HiFiMAN HE-400S are the very first orthodynamic earphones that are genuinely well-driven by a smartphone-and they sound fantastic.