SMSL introduces the H300 enhanced version of the H400, a compact headphone amplifier/preamplifier with a beautiful tempered glass IPS display on the front panel, and a grounding jack and a ground/air switch on the back panel. The high-power H400 can output up to 15W into 16 ohms or 7.5W into 32 ohms. Like its predecessor, it has 3 levels of gain control, so it can adapt to the vast majority of headphones and IEMs on the market. Its symmetrical design and discrete components make it an ideal choice for any headphone, and it can also function as a preamplifier. The package also includes the RC-8D remote control.